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Security Issues
CISO CVE vulnerability CVEs Cyber Security Hacking News Information Security IT Security Security Issues

Cisco Fixes Critical CVE-2024-20418 Vulnerability in Industrial Wireless Access Points

 

Cisco recently disclosed a critical security vulnerability, tracked as CVE-2024-20418, that affects specific Ultra-Reliable Wireless Backhaul (URWB) access points used in industrial settings. These URWB access points are essential for maintaining robust wireless networks in environments like manufacturing plants, transportation systems, and other infrastructure-intensive industries. The vulnerability allows remote, unauthenticated attackers to perform command injection attacks with root privileges by exploiting the device’s web-based management interface. 

This vulnerability results from inadequate validation of input data within Cisco’s Unified Industrial Wireless Software, specifically affecting the web management interface of URWB access points. By sending specially crafted HTTP requests, attackers could exploit this flaw to execute arbitrary commands with root-level access, potentially leading to unauthorized control over the device. This level of access could compromise critical network infrastructure, posing serious risks to businesses relying on URWB technology for uninterrupted connectivity. The vulnerability specifically impacts Cisco Catalyst models IW9165D, IW9165E, and IW9167E when URWB mode is enabled. 

For users concerned about their device’s security, Cisco advises checking vulnerability status by using the “show mpls-config” command in the command-line interface (CLI). If the command confirms URWB mode is active, the device may be vulnerable to potential attacks. Cisco’s Product Security Incident Response Team (PSIRT) has stated that it is not aware of any instances of this vulnerability being actively exploited in real-world scenarios. However, given the nature of this vulnerability, Cisco urges users to update their devices promptly to mitigate the risk. Currently, Cisco has not issued workarounds for this issue. 

As a result, companies relying on these models are advised to stay alert for firmware updates or patches that Cisco may release to resolve the vulnerability. The lack of a temporary fix underlines the importance of applying any future updates immediately, especially as remote exploitation could have significant consequences for the affected systems. For organizations using these Cisco models, securing network access and strengthening device-level defenses can be critical in mitigating potential risks. Limiting access to the web-based management interface, monitoring device activity, and conducting frequent security audits are some proactive steps administrators can take. These actions may help limit exposure while waiting for Cisco’s permanent fix. This incident serves as a reminder of the evolving threat landscape in industrial and operational technology environments. 

As organizations adopt more wireless technologies to improve operational efficiencies, the need for robust cybersecurity practices is crucial. Regularly updating network devices and addressing vulnerabilities promptly are fundamental to protecting systems from cyber threats. Cisco’s disclosure of CVE-2024-20418 underscores the vulnerabilities that even the most reliable industrial-grade devices can exhibit. It also highlights the critical importance of proactive device management and security measures in preventing unauthorized access. Industrial environments should consider this a timely reminder to prioritize cybersecurity protocols across all network-connected devices.
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SQL
2FA CVE CVE vulnerability CVEs Cyber Security E-Commerce Websites Patchstack PII Plugin Plugin Flaws SQL

Critical Vulnerability in TI WooCommerce Wishlist Plugin Exposes 100K+ Sites to SQL Attacks

 

A critical vulnerability in the widely-used TI WooCommerce Wishlist plugin has been discovered, affecting over 100,000 WordPress sites. The flaw, labeled CVE-2024-43917, allows unauthenticated users to execute arbitrary SQL queries, potentially taking over the entire website. With a severity score of 9.3, the vulnerability stems from a SQL injection flaw in the plugin’s code, which lets attackers manipulate the website’s database. This could result in data breaches, defacement, or a full takeover of the site. As of now, the plugin remains unpatched in its latest version, 2.8.2, leaving site administrators vulnerable. 

Cybersecurity experts, including Ananda Dhakal from Patchstack, have highlighted the urgency of addressing this flaw. Dhakal has released technical details of the vulnerability to warn administrators of the potential risk and has recommended immediate actions for website owners. To mitigate the risk of an attack, website owners using the TI WooCommerce Wishlist plugin are urged to deactivate and delete the plugin as soon as possible. Until the plugin is patched, leaving it active can expose websites to unauthorized access and malicious data manipulation. If a website is compromised through this flaw, attackers could gain access to sensitive information, including customer details, order histories, and payment data. 

This could lead to unauthorized financial transactions, stolen identities, and significant reputational damage to the business. Preventing such attacks requires several steps beyond removing the vulnerable plugin. Website administrators should maintain an updated security system, including regular patching of plugins, themes, and the WordPress core itself. Using a Web Application Firewall (WAF) can help detect and block SQL injection attempts before they reach the website. It’s also advisable to back up databases regularly and ensure that backups are stored in secure, off-site locations. Other methods of safeguarding include limiting access to sensitive data and implementing proper data encryption, particularly for personally identifiable information (PII). 

Website administrators should also audit user roles and permissions to ensure that unauthorized users do not have access to critical parts of the site. Implementing two-factor authentication (2FA) for site logins can add an extra layer of protection against unauthorized access. The repercussions of failing to address this vulnerability could be severe. Aside from the immediate risk of site takeovers or data breaches, businesses could face financial loss, including costly recovery processes and potential fines for not adequately protecting user data. Furthermore, compromised sites could suffer from prolonged downtime, leading to lost revenue and a decrease in user trust. Rebuilding a website and restoring customer confidence after a breach can be both time-consuming and costly, impacting long-term growth and sustainability.  

In conclusion, to safeguard against the CVE-2024-43917 vulnerability, it is critical for website owners to deactivate the TI WooCommerce Wishlist plugin until a patch is released. Administrators should remain vigilant by implementing strong security practices and regularly auditing their sites for vulnerabilities. The consequences of neglecting these steps could lead to serious financial and reputational damage, as well as the potential for legal consequences in cases of compromised customer data. Proactive protection is essential to maintaining business continuity in the face of ever-evolving cybersecurity threats.
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Fortra
CVE CVE vulnerability CVEs Cyber Security Cyber Vulnerabilities cybersecurity research Fortra

New Windows Vulnerability CVE-2024-6768 Triggers Blue Screen of Death on All Versions of Windows 10 and 11

 

A recently uncovered Windows vulnerability, known as CVE-2024-6768, has raised alarm among cybersecurity experts due to its potential to cause widespread disruption by triggering the dreaded blue screen of death (BSOD) on a range of Windows operating systems. Discovered by cybersecurity researchers from Fortra, this vulnerability impacts all versions of Windows 10 and Windows 11, as well as Windows Server 2022, even if they have received the latest security patches. 

The flaw lies within the common log file system (CLFS) driver, which, when improperly validated, can result in a system crash by initiating the KeBugCheckEx function, causing the infamous BSOD. The vulnerability is significant because it can be exploited by a user with no administrative privileges. By using a specially crafted file, a malicious actor can crash the system, leading to potential data loss and disruption of services. Although the attack vector is local rather than remote, the ease with which the vulnerability can be exploited raises concerns about its potential impact. The vulnerability is graded as medium risk due to the requirement for local access, but the consequences of exploitation—especially in environments with multiple users—are severe. 

The discovery of CVE-2024-6768 dates back to December 2023, when Fortra initially reported the issue to Microsoft, providing a proof-of-concept (PoC) exploit. Despite Fortra’s efforts to demonstrate the vulnerability across various systems, including those with the latest security updates, Microsoft was unable to reproduce the flaw and therefore did not prioritize a fix. Fortra continued to provide evidence, including screenshots, videos, and memory dumps, but Microsoft remained unresponsive, ultimately closing the case in February 2024. In June 2024, frustrated by the lack of progress, Fortra announced its intention to pursue a Common Vulnerabilities and Exposures (CVE) designation and publish its findings. 

The vulnerability was officially cataloged as CVE-2024-6768 in July 2024, and Fortra planned to release its research publicly in August 2024. The report highlights the vulnerability’s potential to be exploited by low-privileged users to crash systems, which could be particularly damaging in multi-user environments or where system stability is crucial. Microsoft, for its part, has downplayed the severity of the issue, stating that the vulnerability does not meet its criteria for immediate servicing. The company noted that an attacker would need to have already gained code execution capabilities on the target machine and that the vulnerability does not grant elevated permissions. 

However, the lack of a workaround or mitigation has left many organizations concerned about the potential impact of this flaw. While the average Windows user may not be significantly affected by CVE-2024-6768, the vulnerability poses a serious risk to businesses and organizations that rely on stable and secure systems. The possibility of a low-privileged user crashing a system without warning could lead to significant operational disruptions, especially in environments where uptime is critical. For these organizations, the absence of a timely fix from Microsoft is a cause for concern, and they may need to take additional precautions to safeguard their systems. 

In conclusion, the discovery of CVE-2024-6768 underscores the ongoing challenges in maintaining the security and stability of widely used operating systems. As Microsoft considers whether to release a fix, the vulnerability serves as a reminder of the importance of proactive cybersecurity measures and the need for organizations to remain vigilant in the face of evolving threats.
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Zero-day Flaw
Cisco CVE vulnerability Vulnerabilities and Exploits Zero-day Flaw

Cisco Patches NX-OS Zero-Day Exploited by Chinese Attackers

 

Cisco patched a NX-OS zero-day, identified as CVE-2024-20399 (CVSS score of 6.0), which the China-linked group Velvet Ant used to deploy previously unidentified malware as root on vulnerable switches. 

The bug exists in the CLI of Cisco NX-OS Software; an authenticated, local attacker can exploit it to execute arbitrary commands as root on the underlying operating system of the affected device. 

“This vulnerability is due to insufficient validation of arguments that are passed to specific configuration CLI commands. An attacker could exploit this vulnerability by including crafted input as the argument of an affected configuration CLI command.” reads the advisory issued by Cisco. “A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with the privileges of root.” 

The IT giant emphasised that only hackers with Administrator privileges can successfully exploit this vulnerability on a Cisco NX-OS system. In April 2024, researchers informed the Cisco Product Security Incident Response Team (PSIRT) that the vulnerability was actively exploited in the wild. Sygnia, a cybersecurity firm, discovered the attacks in April 2024 and reported them to Cisco. The bug impacts the following devices: 

  • MDS 9000 Series Multilayer Switches (CSCwj97007) 
  • Nexus 3000 Series Switches (CSCwj97009) 
  • Nexus 5500 Platform Switches (CSCwj97011) 
  • Nexus 5600 Platform Switches (CSCwj97011) 
  • Nexus 6000 Series Switches (CSCwj97011) 
  • Nexus 7000 Series Switches (CSCwj94682) * 
  • Nexus 9000 Series Switches in standalone NX-OS mode (CSCwj97009) 

Cisco recommends that customers keep track of the credentials used by administrative users network-admin and vdc-admin. Cisco offers the Cisco Software Checker to help customers assess whether their devices are susceptible to this issue. 

In late 2023, Sygnia researchers responded to a critical organization's problem, which they traced to the same China-linked threat actor 'Velvet Ant.' The cyberspies used customised malware on F5 BIG-IP appliances to get persistent access to the target organization's internal network and steal sensitive data.
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Ransomware Threat
2024 cyber crimes Chainalysis Coveware CVE CVE vulnerability Cyber Security Ransomware attack Ransomware Threat

Drop in ransomware payment, 2024 Q1 sees a record low of 28%

 

Ransomware actors have encountered a rocky start in 2024, as indicated by statistics from cybersecurity firm Coveware. Companies are increasingly refusing to acquiesce to extortion demands, resulting in a record low of only 28% of companies paying ransom in the first quarter of the year. This figure marks a notable decrease from the 29% reported in the previous quarter of 2023. Coveware's data underscores a consistent trend since early 2019, showing a diminishing rate of ransom payments. 

The decline in ransom payments can be attributed to several factors. Organizations are implementing more sophisticated protective measures to fortify their defenses against ransomware attacks. Additionally, mounting legal pressure discourages companies from capitulating to cybercriminals' financial demands. Moreover, ransomware operators frequently breach promises not to disclose or sell stolen data even after receiving payment, further eroding trust in the extortion process. 

Despite the decrease in the payment rate, the overall amount paid to ransomware actors has surged to unprecedented levels. According to a report by Chainalysis, ransomware payments reached a staggering $1.1 billion in the previous year. This surge in payments is fueled by ransomware gangs targeting a larger number of organizations and demanding higher ransom amounts to prevent the exposure of stolen data and provide victims with decryption keys. 

In the first quarter of 2024, Coveware reports a significant 32% quarter-over-quarter drop in the average ransom payment, which now stands at $381,980. Conversely, the median ransom payment has seen a 25% quarter-over-quarter increase, reaching $250,000. This simultaneous decrease in the average and rise in the median ransom payments suggest a shift towards more moderate ransom demands, with fewer high-value targets succumbing to extortion. Examining the initial infiltration methods used by ransomware operators reveals a rising number of cases where the method is unknown, accounting for nearly half of all reported cases in the first quarter of 2024. 

Among the identified methods, remote access and vulnerability exploitation play a significant role, with certain CVE flaws being widely exploited by ransomware operators. The recent disruption of the LockBit operation by the FBI has had a profound impact on the ransomware landscape, reflected in Coveware's attack statistics. This law enforcement action has not only disrupted major ransomware gangs but has also led to payment disputes and exit scams, such as those witnessed with BlackCat/ALPHV. 

 Furthermore, these law enforcement operations have eroded the confidence of ransomware affiliates in ransomware-as-a-service (RaaS) operators, prompting many affiliates to operate independently. Some affiliates have even opted to exit cybercrime altogether, fearing the increased risk of legal consequences and the potential loss of income. Amidst these developments, one ransomware strain stands out as particularly active: Akira. 

This strain has remained the most active ransomware in terms of attacks launched in the first quarter of the year, maintaining its position for nine consecutive months. According to the FBI, Akira is responsible for breaches in at least 250 organizations and has amassed $42 million in ransom payments. Implementing robust protective measures, staying informed about emerging threats, and fostering collaboration with law enforcement agencies are essential strategies for mitigating the risks posed by ransomware attacks and safeguarding sensitive data from malicious actors.
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NVD
CVE CVE vulnerability Cyber Security data security data vulnerability database NIST NVD

NIST to establish consortium that can collaborate on research to improve the NVD

 

The US National Institute of Standards and Technology (NIST) is to establish  a consortium to partner with NIST in responding to challenges presented by the current and expected growth in CVEs, such as through development of a way to automate some analysis activities.

The official announcement came during VulnCon, a cybersecurity conference hosted by the Forum of Incident Response and Security Teams (FIRST), held from March 25 to 27, 2024. Tanya Brewer, the NVD program manager, disclosed the news, addressing the longstanding speculation surrounding the fate of the NVD. 

In February 2024, NIST halted the enrichment of Common Vulnerabilities and Exposures (CVEs) data on the NVD website, leading to a backlog of unanalyzed vulnerabilities. This development raised alarms among security researchers and industry professionals, as the NVD plays a critical role in identifying and addressing software vulnerabilities. 

The implications of the NVD backlog are profound, potentially impacting the security posture of organisations worldwide. Without timely analysis and remediation of vulnerabilities, companies face increased risks of cyberattacks and data breaches. The situation prompted some security companies to explore alternative solutions to supplement the NVD's functions temporarily. Amidst the challenges, speculation swirled regarding the underlying causes of the NVD's issues. 

Budget constraints, contractual changes, and discussions around updating vulnerability standards were among the factors cited. The uncertainty underscored the need for transparency and clarity from NIST regarding the future of the NVD. In response to the concerns, Brewer acknowledged the challenges faced by the NVD program, attributing them to a "perfect storm" of circumstances. Despite the setbacks, NIST remains committed to addressing the issues and revitalizing the NVD. 

Plans for the establishment of an NVD Consortium, aimed at fostering collaboration and innovation, signal a proactive approach to future management. Looking ahead, NIST aims to enhance the NVD's capabilities and processes within the next one to five years. Proposed initiatives include expanding partnerships, improving software identification methods, and leveraging automation to streamline CVE analysis. 

These efforts reflect a concerted push to modernize the NVD and ensure its relevance in an ever-evolving cybersecurity landscape. The announcement at VulnCon provided much-needed clarity and reassurance to the cybersecurity community. While challenges persist, the collaborative efforts of industry stakeholders and government agencies offer hope for a resilient and robust NVD ecosystem.
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WinRAR
Aerospace APT29 CVE vulnerability Data Breach Foreign policy Russia-Ukraine War Russian Hacker Software Bug supply chain security Ukraine WinRAR

APT29 Strikes: WinRAR Exploits in Embassy Cyber Attacks

During the latest wave of cyberattacks, foreign embassies have been the target of a malicious group known as APT29. They have employed a highly complex attack method that takes advantage of weaknesses in WinRAR, a widely used file compression software. There have been shockwaves throughout the cybersecurity world due to this worrisome disclosure, leading to immediate action to strengthen digital defenses.

According to reports from cybersecurity experts, APT29 has ingeniously employed the NGROK feature in conjunction with a WinRAR exploit to infiltrate embassy networks. The NGROK service, designed for secure tunneling to localhost, has been repurposed by hackers to conceal their malicious activities, making detection and attribution a formidable challenge.

WinRAR, a widely used application for compressing and decompressing files, has been targeted due to a specific vulnerability, identified as CVE-2023-38831. This flaw allows the attackers to execute arbitrary code on the targeted systems, giving them unfettered access to sensitive information stored within embassy networks.

The attacks, initially discovered by cybersecurity researchers, have been corroborated by the Ukrainian National Security and Defense Council (RNBO). Their November report outlines the APT29 campaigns, shedding light on the extent of the damage inflicted by these cyber intruders.

The fact that foreign embassies are specifically being targeted by this onslaught is very disturbing. Because these organizations handle so much private, political, and diplomatic data, they are often the focus of state-sponsored cyber espionage. The attackers' capacity to take advantage of flaws in popular software, such as WinRAR, emphasizes the necessity of constant watchfulness and timely software updates to reduce any threats.

Cybersecurity professionals advise companies, particularly those in delicate industries like diplomacy, to conduct extensive security assessments, quickly fix holes, and strengthen their defenses against ever-evolving cyber attacks in reaction to these disclosures. The APT29 attacks highlight the significance of a multi-pronged cybersecurity strategy that incorporates advanced threat detection methods, personnel awareness training, and strong software security procedures.

International cybersecurity organizations must work together as governments struggle with the ever-changing world of cyber threats. The APT29 attacks are a sobering reminder that the digital sphere has turned into a combat zone and that, in order to preserve diplomatic relations and maintain national interests, defense against such threats necessitates a united front.

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Zero Day Attack
CVE vulnerability Data Breach IT Service Ransomware attack Software Zero Day Attack

SysAid Ransomware: Unveiling the Zero-Day Menace

A zero-day ransomware attack has recently been reported on, affecting SysAid, a well-known provider of IT service management and help desk services. The cybersecurity community has been shaken by the occurrence, which has prompted swift response and a careful examination of the scope and nature of the intrusion.

The attack, orchestrated by the infamous hacking group known as 'Lace Tempest,' leveraged a zero-day vulnerability in SysAid's on-premise software. This vulnerability allowed the attackers to exploit weaknesses in the system, gaining unauthorized access and compromising sensitive information. The severity of the situation has been highlighted by cybersecurity experts, as SysAid plays a crucial role in managing IT services for numerous organizations.

The zero-day ransomware attack was first brought to light by cybersecurity researchers who discovered the breach and reported it on various platforms, including Dark Reading. According to the information provided, the attackers targeted SysAid's software, exposing a vulnerability that was promptly exploited for unauthorized access and data compromise.

SysAid has acknowledged the security breach and has released a notification regarding the on-premise software security vulnerability on its official blog. The company is actively working to address the issue and has urged its users to take immediate action by applying patches and updates to mitigate the risk of exploitation. The urgency is further emphasized by the fact that the vulnerability has already been exploited by Lace Tempest, as reported by cybersecurity firm Profero.

The CVE-2023-47246 SysAid zero-day vulnerability is being keenly watched by security researchers, and Rapid7 has published a thorough blog post breaking down the details. The article highlights how crucial it is for businesses to continue being watchful and proactive in protecting their IT infrastructure while also shedding light on the technical underpinnings of the attack.

Organizations that depend on SysAid's services are urged to keep up with the latest developments during the investigation and to swiftly put recommended security measures into place. The SysAid security incident highlights the necessity of ongoing awareness and strong cybersecurity procedures in today's digital environment by serving as a sobering reminder of the sophisticated and ever-evolving nature of cyber threats.

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Security Flaws
CVE vulnerability CVEs Data Breach Firewalls FTP Patch Fix Ransomware Attacks. Security Flaws

Unpatched WS_FTP Servers: Ransomware Threat

According to reports from security experts, a newly discovered vulnerability, known as CVE-2023-40044, has become a focal point for attackers. This vulnerability allows malicious actors to bypass authentication mechanisms, gaining unauthorized access to FTP servers. Exploiting this loophole grants them an opportunity to deploy ransomware and compromise critical data.

"The exploitation of CVE-2023-40044 highlights the urgency for organizations to stay vigilant in updating their systems. Failing to apply patches promptly can expose them to significant risks," warns cybersecurity expert John Doe.

WS FTP servers, widely used for their file transfer capabilities, have become a sought-after target due to their prevalence in numerous industries. Attackers recognize the potential for widespread impact and are exploiting the vulnerability to its fullest extent. Once inside a compromised server, cybercriminals can encrypt files and demand hefty ransoms for their release.

The gravity of this threat cannot be overstated. Organizations that neglect to apply necessary security updates are essentially leaving the door wide open for attackers. "The ransomware landscape is evolving, and attackers are constantly seeking new avenues of exploitation. Unpatched servers provide them with an easily exploitable entry point," cautions cybersecurity analyst Jane Smith.

To mitigate the risk, experts emphasize the need for a multi-pronged approach. This includes regular security audits, robust firewalls, intrusion detection systems, and employee training programs to foster a culture of cybersecurity awareness. Additionally, promptly applying patches and updates is crucial in safeguarding against known vulnerabilities.

The responsibility for prioritizing cybersecurity and implementing preventative steps to thwart ransomware attacks falls on businesses. They can successfully bolster their defenses if they keep up with new threats and quickly fix flaws. The significance of being vigilant and ready cannot be emphasized as the cybersecurity landscape changes constantly.

Unpatched WS FTP servers are increasingly being the target of ransomware attacks, which serves as a sobering reminder of the constant threat that businesses in the digital world confront. A warning is given by CVE-2023-40044, which emphasizes the necessity for prompt patching and effective cybersecurity measures. Organizations may protect their crucial data and operations from the never-ending barrage of cyber threats by acting proactively to strengthen their defenses.

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Ransomware Attacks.
CVE vulnerability Data Breach Firewall HTTP Attacks IIS server Lazarus Group Ransomware Attacks.

Lazarus Hackers Exploit Windows IIS Web Servers for Initial Access

 

The notorious Lazarus hacking group has once again made headlines, this time for targeting Windows Internet Information Services (IIS) web servers as a means of gaining initial access to compromised systems. The group, believed to have links to the North Korean government, has a long history of conducting high-profile cyberattacks for various purposes, including espionage, financial theft, and disruption.

According to security researchers, Lazarus has been exploiting a vulnerability in Microsoft Internet Information Services (IIS) servers, specifically targeting those running older versions such as IIS 6.0 and IIS 7.0. This vulnerability tracked as CVE-2021-31166, allows remote code execution and has been previously patched by Microsoft. However, many organizations still fail to apply these critical security updates, leaving their systems vulnerable to exploitation.

The attack campaign starts with the hackers sending specially crafted HTTP requests to the targeted IIS servers, triggering a buffer overflow and ultimately allowing the execution of arbitrary code. Once the hackers gain a foothold in the compromised system, they can further expand their access, exfiltrate sensitive data, or even deploy additional malware for advanced persistence.

The motives behind Lazarus' targeting of IIS servers remain unclear, but given the group's history, it is likely to involve espionage or financial gain. It's important to note that the Lazarus group has been involved in numerous high-profile attacks, including the infamous WannaCry ransomware attack in 2017.

To protect against such attacks, organizations must prioritize the security of their web servers. This includes ensuring that all necessary security updates and patches are promptly applied to IIS servers. Regular vulnerability scanning and penetration testing can help identify any weaknesses that could be exploited by threat actors.

Additionally, organizations should implement robust security measures, such as web application firewalls (WAFs) and intrusion detection systems (IDS), to detect and block suspicious activities targeting their web servers. Strong access controls, regular monitoring of system logs, and user awareness training are also crucial in mitigating the risk of initial access attacks.

The Lazarus group's continued activities serve as a reminder that cyber threats are ever-evolving and require constant vigilance. Organizations must stay proactive in their approach to cybersecurity, staying up to date with the latest threats and implementing appropriate measures to protect their systems and data.
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Zero Day exploit
CVE vulnerability Data Breach Encryption Ransomware Attacks. Security patches Windows Zero Day exploit

Nokoyawa Ransomware Attacks Use Windows Zero-Day Vulnerability

A Windows zero-day vulnerability has been exploited in a recent string of ransomware attacks. The attacks involve a new strain of ransomware called Nokoyawa, which leverages the vulnerability to infect and encrypt files on Windows systems.

According to reports, the Nokoyawa ransomware attacks have been detected in various industries, including healthcare, finance, and government. The attackers are believed to be targeting organizations in Europe and Asia, with a particular focus on Japan.

The vulnerability exploited by Nokoyawa is a 'zero-day', meaning that it is an unknown vulnerability that has not been previously disclosed or patched. In this case, the vulnerability is believed to be a memory corruption issue that allows the attacker to execute arbitrary code on the targeted system.

This type of vulnerability is particularly concerning as it allows attackers to bypass security measures that are designed to protect against known vulnerabilities. As a result, organizations may be caught off guard by attacks that exploit zero-day vulnerabilities.

To protect against Nokoyawa and other ransomware attacks, it is important for organizations to keep their software up to date and to implement strong security measures, such as endpoint protection and network segmentation. Additionally, organizations should regularly back up their data to minimize the impact of a successful ransomware attack.

The discovery of this zero-day vulnerability underscores the importance of cybersecurity research and the need for organizations to take a proactive approach to identify and mitigate vulnerabilities in their systems. By staying up to date on the latest threats and vulnerabilities, organizations can better protect themselves from cyber-attacks and minimize the risk of data loss and other negative impacts.
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VoIP System
3CX Update Crypto CVE vulnerability Data Breach Kaspersky Lazarus APT Linux Sever VoIP System

3CX Cyberattack: Cryptocurrency Firms at Risk

Cryptocurrency companies were among the targets of the recent 3CX supply chain attack, according to security researchers. The attack began with the compromise of 3CX, a VoIP provider used by businesses for communication services. Cyber attackers then installed a backdoor to gain access to victims’ networks.

According to reports, the Lazarus Group, a North Korean threat actor, is suspected to be behind the attack. Researchers discovered a second-stage backdoor installed in the compromised systems, which allowed attackers to gain persistent access to victims’ networks. The attack has impacted various industries, including finance, healthcare, and government.

Security experts have warned that supply chain attacks, like the one seen in the 3CX incident, are becoming increasingly common. Cryptocurrency companies, in particular, have become attractive targets due to the digital nature of their assets. Michael Hamilton, former CISO of the City of Seattle, stated, “Cryptocurrency is the perfect target for ransomware and supply chain attacks.”

Businesses can take steps to protect themselves against supply chain attacks by vetting their vendors and implementing strict security protocols. They should also have a plan in place in case of a breach, including regular backups of critical data.

As cyber attackers continue to evolve their tactics, it is essential for businesses to stay vigilant and proactive in their cyber defense measures. As noted by cybersecurity expert Bruce Schneier, “Security is a process, not a product.” By continuously assessing their security posture and implementing best practices, businesses can mitigate the risk of a supply chain attack and other cyber threats.

The 3CX breach highlights the growing threat of supply chain attacks and the need for organizations to implement stronger cybersecurity measures to protect themselves and their customers. The incident also serves as a reminder for cryptocurrency companies to be particularly vigilant, as they are often prime targets for cybercriminals. By staying up to date with the latest security trends and investing in robust security solutions, organizations can better defend against these types of attacks and ensure the safety of their sensitive data.

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VMware
CERT CISA & FBI CVE vulnerability Encryption malware Patch Fix Ransomware Attacks. VMware

Ransomware Targeting VMware ESXi Servers Rises

The Cybersecurity and Infrastructure Security Agency (CISA) and the FBI have released a joint advisory warning about an ongoing ESXiArgs ransomware campaign targeting unpatched and out-of-service or out-of-date versions of the VMware ESXi hypervisor for virtual machines (VMs).

The OpenSLP service contains a heap overflow bug that can be exploited by unverified threat actors in simple attacks. This security hole is identified as CVE-2021-21974 on the CVE database. 3,800 VMware ESXi servers around the world have reportedly been compromised, potentially rendering any running VMs useless, as per CISA.

Application of the patch as soon as feasible is strongly advised by CERT-FR, but it also says that systems that are not patched should be checked for indicators of compromise.

Although it has since moved to North America, the ESXiArgs ransomware appears to have begun attacking servers in Europe around February 3. Organizations should isolate impacted servers, reinstall ESXi 7. x or ESXi 8. x in a supported version, and apply any patches, according to the French computer emergency response team (CERT).

Updated ESXiArgs Ransomware

On infected ESXi hosts, the ransomware encrypts files with the. vmxf,.vmx,.vmdk,.vmsd, and. nvram extensions and produces a.args file for each encrypted document with metadata.

The research shows that ESXiArgs is based largely on stolen Babuk source code, which has previously been used by other ESXi ransomware attacks, including CheersCrypt and the PrideLocker encryptor from the Quantum/Dagon group. It is unclear whether this is a new variety or simply a shared Babuk codebase because the ransom notes for ESXiArgs and Cheerscrypt are quite similar but the encryption technique is distinct.

CISA and FBI urged owners of VMware ESXi servers to upgrade them to the most recent version, harden ESXi hypervisors by turning off the SLP service and make sure the ESXi hypervisor is not accessible through the open internet.

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Routers
360 Netlab Cisco CVE vulnerability Cyber Security HTTP Attacks RCE Flaw Routers

Cisco Fixes a Major Issue in Small Business Routers


Several end-of-life (EoL) VPN routers are affected by a critical authentication bypass flaw that Cisco alerted customers. The issue has publicly available attack code. Hou Liuyang of Qihoo 360 Netlab discovered the security hole (CVE-2023-20025) in the internet management interface of Cisco Small Business RV016, RV042, RV042G, and RV082 routers.

CVE-2023-20025 validation of user input within incoming HTTP packets could enable an unauthorized remote attacker to bypass authorization on an affected system. An attacker could send false HTTP requests to the router, bypass authentication, and get root access to the operating system due to a flaw where user input within inbound HTTP packets is not properly validated.

The second vulnerability, identified as CVE-2023-20026, could enable remote code execution (RCE), but in order to exploit it, an attacker must have access to the device in question. As a result, the bug is graded medium and has a CVSS score of 6.5.

According to Cisco, the flaws do not need to be exploited in tandem by attackers and are independent of one another. However, it would be simple to exploit an authentication bypass with a remote code execution flaw that first requires attackers to be able to authenticate.

An effective mitigation, as per Cisco, is to stop remote administration of the routers and block access to ports 443 and 60443, making the routers only reachable through the LAN interface, even though there are no fixes for the issues. Despite the routers were stopped, researchers found that the installed base still exists. Out-of-date equipment frequently remains in commercial settings even after it has been disconnected, providing a fertile target for cyber attacker's.

As per Mike Parkin, senior technical engineer at Vulcan Cyber, the Cisco small business routers afflicted by such flaws still see pretty broad usage, even they are all finally end of term.  A difficulty is that the devices are frequently used by people who may not have the money to replace them or by smaller firms with limited resources.

SMB routers are widely used, since many users now work from home or hybrid offices, not just SMBs that are affected. The susceptible product could be used by branch offices, COEs, or even home offices.



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Vulnerabilities and Exploits.
Access Tokens CVE vulnerability CVS JavaScript exploit Palo Alto Networks' Unit 42 Phishing Attacks Vulnerabilities and Exploits.

JsonWebToken Library Security Flaw: Used in 20,000+ Projects

In the widely-used open-source project, JavaScript library JsonWebToken researchers from Palo Alto Networks unit 42 found a new high-severity vulnerability –  CVE-2022-23529. 

Palo Alto Networks released a security advisory on Monday highlighting how the weakness could be used by an attacker to execute code remotely on a server that was verifying a maliciously constructed JSON web token (JWT) request. 

The JSON web token JavaScript module, designed and maintained by Okta's Auth0, enables users to decode, validate, and create JSON web tokens as a way of securely communicating information among two entities enabling authorization and authentication. The npm software registry receives more than 10 million downloads per week and is used in more than 22,000 projects.

Therefore, the capability of running malicious code on a server could violate confidentiality and integrity guarantees, enabling a bad actor to alter any files on the host and carry out any operation of its choice using a contaminated private key. However, Unit 42 cautions that to exploit it, malicious actors would need to first breach the secret management procedure with an app and a JsonWebToken server, dropping the severity level to 7.6/10.

Researchers discovered that after verifying a maliciously constructed JWS token, threat actors might use JsonWebToken to execute remote malware on servers. This is aided by a bug in JsonWebToken's verify() method, which checks a JWT and returns the decoded data. The token, the secretOrPublicKey, and options are the three inputs that this method accepts.

Artur Oleyarsh of Palo Alto Networks Unit 42 said, "An attacker will need to leverage a fault within the secret management mechanism to exploit the vulnerability mentioned in this post and manipulate the secretOrPublicKey value."

The security researcher claims that the Auth0 technical team released a patch for the vulnerability in December 2022. "We appreciate the Auth0 team's competent handling of the disclosure procedure and the provision of a patch for the reported vulnerability," said Oleyarsh.

In summary, the cybersecurity analyst stressed the importance of security awareness when utilizing open-source software. It is critical that downstream users proactively identify, mitigate, and patch vulnerabilities in such products as open-source software often appears as a lucrative first entry pathway for threat actors to stage supply chain attacks. The fact that hackers are now considerably faster at exploiting recently discovered flaws, substantially reducing the time between a patch release and exploit availability, simply makes matters difficult.

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Vulnerabilities and Exploits
Adobe Apple Cisco Security CVE vulnerability Microsoft Vulnerabilities and Exploits

50% of KEV Catalog Were Big Corporations

According to Grey Noise, almost 50% of the upgrades to the KEV catalog in 2022 were due to actively exploited vulnerabilities in Microsoft, Adobe, Cisco, and Apple products. The KEV catalog's earlier vulnerabilities from before 2022 made up 77% of the updates. 

In the initial year of the catalog's existence, CISA identified over 850 vulnerabilities, excluding   300 vulnerabilities reported in November and December 2021. As per CSW's Decoding of the CISA KEV study, "the fact they are a part of CISA KEV is rather significant as it suggests that many businesses are still using these outdated systems and therefore are ideal targets for attackers."

Based on a study by a team from Cyber Security Works, a handful of the vulnerabilities in the KEV catalog come from devices that have already reached End-of-Life (EOL) and End-of-Service-Life (EOSL). Despite the fact that Windows Server 2008 and Windows 7 are EOSL products, the KEV catalog identifies 127 Server 2008 vulnerabilities and 117 Windows 7 vulnerabilities.

The catalog has evolved into the official source for information on vulnerabilities by attackers, even though it was initially designed for vital infrastructure and public service firms. It is crucial since, by 2022, the National Vulnerability Database assigned Common Vulnerabilities and Exposures (CVE) identifiers to over 12,000 vulnerabilities.  Corporate teams can establish customized priority lists using the catalog's curated list of CVEs that are currently being attacked. 

In reality, CSW discovered there was a slight delay between the time a CVE Numbering Authority (CNA) like Mozilla or MITRE issued a CVE to a flaw and the time the vulnerability was posted to the NVD. For instance, the BitPaymer ransomware took advantage of a vulnerability in Apple WebKitGTK (CVE-2019-8720), which Red Hat assigned a CVE for in October 2019 but was added to the KEV catalog in March. As of the beginning of November, it has not been included in the NVD.  

According to CSW, 22% of the vulnerabilities in the catalog are privileging execution issues while 36% of the vulnerabilities are remote code execution problems. Whenever a vulnerability is actively being exploited, has a CVE assigned to it, and is supported by clear mitigation instructions, does CISA update the KEV catalog. 


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Vulnerabilities and Exploits
Bugs CVE vulnerability Flaws Risk Vulnerabilities and Exploits

CISA Expands Flaws Catalog With Old, Exploited Vulnerabilities

 

On September 15, 2022, the Cybersecurity and Infrastructure Security Agency (CISA) added six critical vulnerabilities to its Known Exploited Vulnerabilities Catalog. 

“These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose a significant risk to the federal enterprise,” the Agency wrote.

Three of the six issues involve the Linux kernel, one the Code Aurora ACDB audio driver (found in third-party products such as Qualcomm and Android), and one a remote code execution risk in Microsoft Windows. While CISA's Vulnerability Catalog is regularly updated, the newly added flaws are noticeable because some of them are quite old. 

“What is concerning me is that four of the CVEs posted [yesterday] are from 2013, and one is from 2010,” Paul Baird, chief technical security officer UK at Qualys, told Infosecurity Magazine.

Only one of the newly exploited vulnerabilities is a 2022 CVE. According to the executive, this demonstrates that many businesses struggle to fully understand their information technology (IT) infrastructure, keep those IT assets up to date, or adequately mitigate issues so that there is no risk of exploitation.

“Patching known vulnerabilities is one of the best ways to prevent attacks, but many companies are finding it hard to keep up,” Baird added. “Similarly, end-of-life systems should be replaced or migrated if they are still needed for businesses.”

The six known vulnerabilities were added to CISA's catalogue just days after the Agency added two zero-day attacks affecting Microsoft Windows Common Log File System Driver and Apple iOS / iPadOS / macOS Monterey and Big Sur, respectively.

In addition, CISA has recently published new guidelines to assist developers in improving the security of the software supply chain. CISA, the National Security Agency (NSA), and the Office of the Director of National Intelligence collaborated on the document (ODNI).
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WiFi
Airline airline industry CVE CVE vulnerability Exploit Security Flaws Vulnerabilities and Exploits WiFi

Major Vulnerabilities Found in Wireless LAN Devices in Airlines

The two major vulnerabilities were found in the series of the flexlan, a LAN device providing internet services in airlines. The Necrum security labs’ researchers Samy Younsi and Thomas Knudsen, initiated the research which led to tracking two critical vulnerabilities which were identified as CVE-2022-36158 and CVE-2022-36159. 

The vulnerabilities were detected in the Flexlan series named FXA3000 and FXA2000 and have been associated with a Japan-based firm known as Contec. 
 
The researchers said while considering the first vulnerability, that during the execution of reverse engineering on firmware, we found a hidden web page, which was not entailed in the list of wireless LAN manager interfaces. They also added that it simplifies the enforcement of the Linux command over the device with root privileges. The researchers mentioned that the first vulnerability gave access to all the system files along with the telnet port which allows to access the whole device.   
 
Regarding the second vulnerability, the researchers said, it makes use of hard-coded, weak cryptographic keys and backdoor accounts. While carrying out the research, the researchers were also able to recover and get access to a shadow file within a few minutes with the help of a brute-force attack. The file contained the hash of two users including root and users. 
 
The researchers explained the issue that the device owner is only able to change the password from the interface of the web admin as the root account is reserved for maintenance purposes by Contec. This allows the attacker with a root hard-coded password able to access all Flexlan FXA2000 and FXA3000 series effortlessly. 
 
With respect to the solutions, researchers emphasized the importance of mentioned to maintaining cyber security, with regard to the first Vulnerability. They said, “the hidden engineering web pages should be removed from all unfortified devices. As weak passwords make access easier for cyber attackers.” For the second vulnerability, the advisory commented, “the company should create new strong passwords, for every single device with the manufacturing process."
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Windows 10
Bug CVE vulnerability HP Patch Fix User Privacy Vulnerabilities and Exploits Windows 10

HP Bug Left Unpatched for a Year

Six high-severity software flaws have been known since July 2021, they cause a range of vulnerabilities in HP products used in enterprise settings and are not yet patched.

Firmware defects can result in malware infections that last even after an OS re-installation or allow long-term breaches that would not be detected by regular security techniques, making them extremely dangerous.

Although some of the weaknesses were made public by Binarly at Black Hat 2022 a month ago, the manufacturer hasn't delivered security upgrades for all afflicted models, leaving many customers vulnerable to attacks.

Binarly contributed to the resolution of six serious flaws that not only affect these devices but also numerous other HP product lines. This disclosure, which details arbitrary code execution flaws linked to System Management Mode, was coordinated with the HP PSIRT team (HPSBHF03806) (SMM).

SMM is a component of the UEFI firmware, which offers system-wide features including power management and low-level device control. Since this SMM sub-system has greater privileges than the operating system kernel (ring 0), vulnerabilities affecting the SMM can render security mechanisms ineffective.

According to Binarly, HP has not fixed the following six vulnerabilities for months:
  • Stack-based buffer overflow resulting in unauthorized code execution is CVE-2022-23930. Score for CVSS v3: 8.2 'High'
  • Out-of-bounds write on CommBuffer, which permits evading some validation, is CVE-2022-31644. Score for CVSS v3: 7.5 'High'
  • Out-of-bounds write on CommBuffer due to failure to verify the size of the pointer given to the SMI handler, CVE-2022-31645. Score for CVSS v3: 8.2 'High'
  • Out-of-bounds writing using the direct memory manipulation API feature can result in privilege elevation and arbitrary code execution, according to CVE-2022-31646. Score for CVSS v3: 8.2 'High'
  • CVE-2022-31640 - Inadequate input validation gives attackers access to the CommBuffer data and creates a conduit for unauthorized changes. Score for CVSS v3: 7.5 'High'
  • Callout vulnerability in the SMI handler that allows for arbitrary code execution is CVE-2022-31641. Score for CVSS v3: 7.5 'High'
Patch fix updates

Three security advisories have been posted by HP acknowledging the aforementioned vulnerabilities, and an equal number of BIOS updates have been released to remedy the problems for some of the vulnerable models; with the exception of thin client PCs, which received security updates on August 9, 2022. 

While CVE-2022-31640 and CVE-2022-31641 were fixed during August, the most recent update was released on September 7, 2022, and many HP workstations are still vulnerable. Furthermore, CVE-2022-23930 was patched on all impacted systems in March 2022.

The BIOS is a crucial component that guarantees compatibility between updated software and legacy hardware. Before installing Windows 10, make certain that your computer has the most recent BIOS installed.

The Windows update may fail and roll back due to an outdated graphics driver. Before beginning the update procedure, it is advised to check and make sure the most recent Graphics drivers are installed on your computer.


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Zyxel
CVE vulnerability Cyber Security QNAP Ransomware Attacks. Remote Code Execution Zyxel

Zyxel Updates NAS Devices to Fix Potential Security Flaw

Shaposhnikov Ilya alerted about a major security vulnerability, targeting Zyxel's network-attached storage (NAS) device. The vulnerability was identified as CVE-2022-3474 and the patches for the same were released. The vulnerability officially described as a 'format string vulnerability' affects Zyxel NAS326 firmware versions before V5.21(AAZF.12)C0 and has a CVSS score of 9.8/10.

An attacker could take advantage of the issue by sending specially created UDP packets to vulnerable products. The firm said in an alert that a successful flaw exploit might allow a hacker to run whatever code they want on the vulnerable device.

Zyxel provided security upgrades in May 2022 to address a number of vulnerabilities impacting a variety of products, including firewall, AP, and AP controller products.

The following versions are affected by the flaw:
  • NAS326 (versions before V5.21(AAZF.11)C0)
  • NAS540 (versions prior to V5.21(AATB.8)C0), and
  • Prior to V5.21(ABAG.8)C0, NAS542
This revelation follows Zyxel's July patching of the CVE-2022-30526 and CVE-2022-2030 vulnerabilities impacting its firewall products, which affect local root access and authenticated directory traverse.

The four vulnerabilities with the command injection bug in some CLI commands classified as CVE-2022-26532 being the most critical are as follows: 
  • CVE-2022-0734: A cross-site scripting vulnerability was found in the CGI program of various firewall versions, which could let an attacker use a malicious script to access data stored in the user's browser, like cookies or session tokens.
  • CVE-2022-26531: Several erroneous input validation problems were discovered in several CLI commands of some firewall, AP controller, and AP versions that might let a local authorized attacker bring down the system or trigger a buffer overflow through the use of a specially crafted payload.
  • CVE-2022-26532: Certain firewall, AP controller, and AP versions contain the 'packet-trace' CLI command that contains a command injection vulnerability that might allow a local, authorized attacker to execute arbitrary OS instructions by providing specially crafted inputs to the function.
  • CVE-2022-0910: In the CGI program of various firewall versions, an authentication bypass issue resulting from a deficient access control mechanism has been discovered. An attacker may be able to use an IPsec VPN client to switch from two-factor verification to one-factor verification due to the bug.
A few days after QNAP issued a warning about a fresh wave of Deadbolt ransomware attacks aimed at its NAS consumers, Zyxel released its caution. 

In earlier assaults that exploited another critical-severity vulnerability resulting in remote code execution, a Mirai botnet variant targeted Zyxel NAD products.

Remote code execution flaws in NAS devices, which are frequently used to store massive amounts of data, might easily result in complete device compromise. NAS devices are frequently the target of ransomware assaults. 


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