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Sevco Report Exposes Privacy Risks in iOS and macOS Due to Mirroring Bug

 

A new cybersecurity report from Sevco has uncovered a critical vulnerability in macOS 15.0 Sequoia and iOS 18, which exposes personal data through iPhone apps when devices are mirrored onto work computers. The issue arose when Sevco researchers detected personal iOS apps showing up on corporate Mac devices. This triggered a deeper investigation into the problem, revealing a systemic issue affecting multiple upstream software vendors and customers. The bug creates two main concerns: employees’ personal data could be unintentionally accessed by their employers, and companies could face legal risks for collecting that data.  

Sevco highlighted that while employees may worry about their personal lives being exposed, companies also face potential data liability even if the access occurs unintentionally. This is especially true when personal iPhones are connected to company laptops or desktops, leading to private data becoming accessible. Sean Wright, a cybersecurity expert, commented that the severity of the issue depends on the level of trust employees have in their employers. According to Wright, individuals who are uncomfortable with their employers having access to their personal data should avoid using personal devices for work-related tasks or connecting them to corporate systems. Sevco’s report recommended several actions for companies and employees to mitigate this risk. 

Firstly, employees should stop using the mirroring app to prevent the exposure of personal information. In addition, companies should advise their employees not to connect personal devices to work computers. Another key step involves ensuring that third-party vendors do not inadvertently gather sensitive data from work devices. The cybersecurity experts at Sevco urged companies to take these steps while awaiting an official patch from Apple to resolve the issue. When Apple releases the patch, Sevco recommends that companies promptly apply it to halt the collection of private employee data. 

Moreover, companies should purge any previously collected employee information that might have been gathered through this vulnerability. This would help eliminate liability risks and ensure compliance with data protection regulations. This report highlights the importance of maintaining clear boundaries between personal and work devices. With an increasing reliance on seamless technology, including mirroring apps, the risks associated with these tools also escalate. 

While the convenience of moving between personal phones and work computers is appealing, privacy issues should not be overlooked. The Sevco report emphasizes the importance of being vigilant about security and privacy in the workplace, especially when using personal devices for professional tasks. Both employees and companies need to take proactive steps to safeguard personal information and reduce potential legal risks until a fix is made available.

A ChatGPT Bug Exposes Sensitive User Data

OpenAI's ChatGPT, an artificial intelligence (AI) language model that can produce text that resembles human speech, has a security flaw. The flaw enabled the model to unintentionally expose private user information, endangering the privacy of several users. This event serves as a reminder of the value of cybersecurity and the necessity for businesses to protect customer data in a proactive manner.

According to a report by Tech Monitor, the ChatGPT bug "allowed researchers to extract personal data from users, including email addresses and phone numbers, as well as reveal the model's training data." This means that not only were users' personal information exposed, but also the sensitive data used to train the AI model. As a result, the incident raises concerns about the potential misuse of the leaked information.

The ChatGPT bug not only affects individual users but also has wider implications for organizations that rely on AI technology. As noted in a report by India Times, "the breach not only exposes the lack of security protocols at OpenAI, but it also brings forth the question of how safe AI-powered systems are for businesses and consumers."

Furthermore, the incident highlights the importance of adhering to regulations such as the General Data Protection Regulation (GDPR), which aims to protect individuals' personal data in the European Union. The ChatGPT bug violated GDPR regulations by exposing personal data without proper consent.

OpenAI has taken swift action to address the issue, stating that they have fixed the bug and implemented measures to prevent similar incidents in the future. However, the incident serves as a warning to businesses and individuals alike to prioritize cybersecurity measures and to be aware of potential vulnerabilities in AI systems.

As stated by Cyber Security Connect, "ChatGPT may have just blurted out your darkest secrets," emphasizing the need for constant vigilance and proactive measures to safeguard sensitive information. This includes regular updates and patches to address security flaws, as well as utilizing encryption and other security measures to protect data.

The ChatGPT bug highlights the need for ongoing vigilance and preventative measures to protect private data in the era of advanced technology. Prioritizing cybersecurity and staying informed of vulnerabilities is crucial for a safer digital environment as AI systems continue to evolve and play a prominent role in various industries.




A Privacy Flaw in Windows 11's Snipping Tool Exposes Cropped Image Content

 

A serious privacy vulnerability known as 'acropalypse' has also been discovered in the Windows Snipping Tool, enabling people to partially restore content that was photoshopped out of an image. 

Security researchers David Buchanan and Simon Aarons discovered last week that a bug in Google Pixel's Markup Tool caused the original image data to be retained even when it was edited or cropped out. This flaw poses a significant privacy risk because it may be possible to partially recover the original photo if a user shares a picture, such as a credit card with a redacted number or revealing photos with the face removed.

To demonstrate the bug, the researchers created an online acropalypse screenshot recovery tool that attempted to recover edited images created on Google Pixel.

The Windows 11 Snipping Tool was also affected

Today, Chris Blume, a software engineer, confirmed that the 'acropalypse' privacy flaw also affects the Windows 11 Snipping Tool. Instead of truncating any unused data when opening a file in the Windows 11 Snipping Tool and overwriting an existing file, it leaves the unused data behind, allowing it to be partially recovered.

Will Dormann, a vulnerability expert, also confirmed the Windows 11 Snipping Tool flaw, and BleepingComputer confirmed the issue with Dormann's assistance. To put this to the test, Bleeping Computer opened an existing PNG file in Windows 11 Snipping Tool, cropped it (you can also edit or mark it up), and saved the changes to the original file. 

While the cropped image comprises far less data than the original, the file sizes for the original image (office-screenshot-original.png) and cropped image (office-screenshot.png) are identical. According to the PNG file specification, a PNG image file must always end with a 'IEND' data chunk, with any data added after that being ignored by image editors and viewers.

However, when used the Windows 11 Snipping Tool to overwrite the original image with the cropped version, the programme did not properly truncate the unused data, and it is still present after the IEND data chunk.

When you open the file in an image viewer, you'll only see the cropped image because anything after the first IEND is ignored. This untruncated data, on the other hand, can be used to partially recreate the original image, potentially revealing sensitive portions.

While the researcher's online acropalypse screenshot recovery app does not currently support Windows files, Buchanan did share with BleepingComputer a Python script that can be used to recover Windows files.

BleepingComputer successfully recovered a portion of the image using this script. This was not a complete recovery of the original image, which may leave you wondering why this poses a privacy risk.

Consider taking a screenshot of a sensitive spreadsheet, confidential documents, or even a naked picture and cropping out sensitive information or portions of the image. Even if you are unable to fully recover the original image, someone may be able to recover sensitive information that you do not want made public. It should also be noted that this flaw does not affect all PNG files, such as optimised PNGs.

"Your original PNG was saved with a single zlib block (common for "optimised" PNGs) but actual screenshots are saved with multiple zlib blocks (which my exploit requires)," Buchanan explained to BleepingComputer.

BleepingComputer also discovered that if you open an untruncated PNG file in an image editor, such as Photoshop, and save it to another file, the unused data at the end is stripped away, rendering it unrecoverable.

Finally, the Windows 11 Snipping Tool behaves similarly to the above with JPG files, leaving data untruncated if overwritten. However, Buchanan told BleepingComputer that his exploit does not currently work on JPGs but that it might in the future. Microsoft confirmed to BleepingComputer that they are aware of the reports and are investigating them.

"We are aware of these reports and are investigating. We will take action as needed to help keep customers protected," a Microsoft spokesperson told BleepingComputer.

LastPass Breach: CISA Warns of Exploited Plex Bug

 


An employee of LastPass was responsible for the massive breach at the company as he failed to update Plex on his home computer when he was updating Plex on his work computer. A potential danger lurks in failing to keep software up-to-date, as this is a sobering reminder of the risks involved. 

In a recent report on the embattled password management service, it was revealed that unidentified actors used information stolen from a previous incident that occurred before August 12, 2022, to launch a coordinated second attack between August and October 2022 based on information that was obtained from a third-party data breach and vulnerabilities in third-party media software packages. 

In the end, an intrusion led to the adversary stealing information about customers and password vault data, which was partially encrypted. 

Secondly, an attack targeted one of the DevOps engineers, forging credentials and breaching the cloud storage environment by infecting the engineer's home computer with keylogger malware. 

In addition to a critical severity vulnerability, CISA added a known exploited vulnerability to its Known Exploited Vulnerabilities (KEV) section (tracked as CVE-2021-39144), exploited by third parties since early December. 

U.S. federal agencies have been made aware that, by a binding operational directive (BOD 22-01) issued by the Army in November 2021, they are now mandated to secure their systems against attacks until March 31st to prevent potential attacks exploiting the two security holes that could impact their networks. 

As part of its ongoing effort to identify security flaws exploited by hackers, CISA has discovered a high-severity and relatively older remote code execution (RCE) vulnerability in Plex Media Server that was discovered almost three years ago.

This issue has been tracked as CVE-2020-5741 and it has been described as a deserialization flaw in Plex Media Server that can be exploited remotely to execute arbitrary Python code, which is also described as a high-severity flaw. 

It should be noted that this vulnerability has been addressed with the release of Plex Media Server 1.19.3, which means the attacker would need administrator rights to exploit the vulnerability successfully. Due to this, it is unlikely that it will be a target of an attack in the future. 

In August 2022, Plex reported that there had been a data breach that could adversely affect over 15 million customers. In this breach, usernames, emails, and passwords were stolen, resulting in the loss of personal information. 

The implications of this are that unpatched Plex Media Server instances are still vulnerable to CVE-2020-5741 attacks and could be exploited by malicious individuals. 

Although the CISA team added the vulnerability to the KEV list without providing any information about its potential in-the-wild exploitation, media reports recently suggested that a Plex bug exploited to hack a DevOps engineer's computer may have been responsible for the data breach at LastPass last year that led to the theft of user vault data.

Clop Ransomware Flaw Permitted Linux Victims to Restore Files for Months

 

The first Linux version of the Clop ransomware has been discovered in the wild, but with a flawed encryption algorithm that enables the process to be reverse-engineered. 

"The ELF executable contains a flawed encryption algorithm making it possible to decrypt locked files without paying the ransom," SentinelOne researcher Antonis Terefos said in a report shared with The Hacker News.

The cybersecurity firm, which has created a decryptor available, stated that it discovered the ELF version on December 26, 2022, while also mentioning similarities to the Windows flavor in terms of employing the same encryption method. Around the same time, the detected sample is said to be a component of a larger attack targeting educational institutions in Colombia, including La Salle University. As per FalconFeedsio, the university was added to the criminal group's leak site in early January 2023.

The Clop (stylized as Cl0p) ransomware operation, which has been active since 2019, dealt a major blow in June 2021 when six members of the group were arrested by police as part of an international law enforcement operation codenamed Operation Cyclone.

However, the cybercrime group made a "explosive and unexpected" comeback in early 2022, claiming dozens of victims from the industrial and technology sectors. SentinelOne classified the Linux version as an early-stage version due to the absence of some functions found in the Windows counterpart.

This lack of feature parity is also explained by the malware authors' decision to create a custom Linux payload rather than simply porting over the Windows version, implying that future Clop variants may close the gap.

"A reason for this could be that the threat actor has not needed to dedicate time and resources to improve obfuscation or evasiveness due to the fact that it is currently undetected by all 64 security engines on VirusTotal," Terefos explained.

The Linux version is intended to encrypt specific folders and file types, with the ransomware containing a hard-coded master key that can be used to recover the original files without paying the threat actors. If anything, the development indicates a growing trend of threat actors branching out beyond Windows to target other platforms.

Terefos concluded, "While the Linux-flavored variation of Cl0p is, at this time, in its infancy, its development and the almost ubiquitous use of Linux in servers and cloud workloads suggests that defenders should expect to see more Linux-targeted ransomware campaigns going forward," 

RCE Vulnerability patched in vm2 Sandbox

Researchers from Oxeye found a serious vm2 vulnerability (CVE-2022-36067) that has the highest CVSS score of 10.0. R&D executives, AppSec engineers, and security experts must make sure they rapidly repair the vm2 sandbox if they utilize it in their apps due to a new vulnerability known as SandBreak.

The most widely used Javascript sandbox library is vm2, which receives about 17.5 million downloads each month. It offers a widely used software testing framework that may synchronously execute untrusted code in a single process.

The Node.js functionality that allows vm2 maintainers to alter the call stack of failures in the software testing framework is the primary culprit in the vulnerability, which Oxeye's researchers have dubbed SandBreak.

According to senior security researcher Gal Goldshtein of Oxeye, "when examining the prior issues revealed to the vm2 maintainers, we observed an unusual technique: the bug reporter leveraged the error mechanism in Node.js to escape the sandbox."

Modern applications use sandboxes for a variety of functions, including inspecting attached files in email servers, adding an extra layer of protection in web browsers, and isolating running programs in some operating systems. Bypassing the vm2 sandbox environment, a hacker who takes advantage of this vulnerability would be able to execute shell commands on the computer hosting it.

The vm2 vulnerability can still have serious repercussions for apps that use vm2 without a fix due to the nature of the use cases for sandboxes. Given that this vulnerability does have the highest CVSS score and is quite well-known, its potential impact is both significant and extensive.

Nevertheless, an attacker might offer its alternative implementation of the prepareStackTrace technique and escape the sandbox because it did not cover all particular methods.

The researchers at Oxeye also were able to substitute their own implementation, which contained a unique prepareStackTrace function for the global Error object. When it was called, it would discover a CallSite object outside the sandbox, enabling the host to run any code.

Users are advised to upgrade as quickly as possible to the most recent version due to the vulnerability's serious severity and to reduce potential risks.


Pavel Durov: Users Must Cease Using WhatsApp Since it's a Spying Tool

WhatsApp is among the most popular messaging apps in the world. It was first launched in January 2009 and since then evolved to include audio and video calls, emojis, and WhatsApp Payments. However, criticism has also surrounded the well-known messaging app due to claims about privacy and security issues. 

Recently, WhatsApp disclosed a security flaw affecting its Android app that was deemed critical. Pavel Durov, the creator of Telegram, pokes fun at WhatsApp and advises users to avoid it. 

Hackers could have complete access to all aspects of WhatsApp users' phones, according to Telegram founder Pavel Durov. Additionally, he asserted that WhatsApp has been monitoring user data for the past 13 years while claiming that WhatsApp's security flaws were planned purposely.

Durov outlined Telegram's security and privacy characteristics by saying, "I'm not trying to convince anyone to use Telegram here. There is no need to promote Telegram more." He claimed that Telegram's instant messaging software prioritizes privacy. With more than 700 million active users as of right now, the app is apparently growing steadily, adding over 2 million new users every day.

Regarding security and privacy, WhatsApp states that all texts, chats, and video calls are provided with end-to-end encryption. However, the program has frequently experienced bugs and security problems, which have sparked concerns about its privacy.

In terms of private chats and user data, WhatsApp already has a complicated and distorted past. People have been worried about Facebook's handling of users' personal data ever since it purchased Meta in 2014. For revealing user data not just with governmental organizations but also with private parties, Meta has been criticized for a considerable time.

The rise in popularity of Telegram and Signal and other instant messaging services with a security and privacy focus can be attributed to this.

According to a recent report from Meta, WhatsApp users are susceptible to hacking due to a flaw in the way videos are downloaded and played back. If this flaw is exploited, hackers would have complete access to virtually everything on the phone of the WhatsApp user. Along with users' emails and pictures, this also contains other correspondence, such as SMS messages from various banks and app data from one's banking and payment apps.




Dex: ID Service Patches Bug that Allows Unauthorized Access to Client Applications

 

The renowned OpenID Connect (OIDC) identity service, Dex has detected and patched a critical vulnerability. The bug allows a threat actor access to the victim's ID tokens via intercepted authorization code, potentially accessing clients’ applications without authorization. The vulnerability was patched by Sigstore developers Hayden Blauzvern, Bob Callaway, and ‘joernchen', who initially reported the bug. 

The open-source sandbox project of Cloud Native Computing Foundation, Dex utilizes an identification layer on top of OAuth 2.0, providing authentication to other applications.  

Dex acts as a portal to other identity providers through certain ‘connectors’, ranging from authentication to LDAP servers, SAML providers, or identity providers like GitHub, Google, and Active Directory. As a result, Dex claims 35.6 million downloads to date. As stated in the Developer's notification, the bug affects “Dex instances with the public clients (and by extension, clients accepting tokens issued by those Dex instances.” 

As per the discovery made by security researchers, the threat actor can steal an OAuth authentication code by luring the victim to enter a malicious website and further, leading him into the OIDC flow. Thence the victim is tricked into exchanging the authorization code for a token, which allows access to applications that accept the token. As the exploit can be used multiple times, the threat actor can get a new token every time the old one expires.  

The bug thus comes into existence because the authentication process instigates a persistent “connector state parameter" as the request ID to look up the OAuth code. 

“Once the user has successfully authenticated, if the webserver is able to call /approval before the victim’s browser calls /approval, then an attacker can fetch the Dex OAuth code which can be exchanged for an ID token using the /token endpoint,” the advisory stated. The users are advised to update to version 2.35.0, as the vulnerability, having the CVSS rating of 9.3, affects versions 2.34.0 and older.  

The bug was fixed by introducing a hash-based message authentication (HMAC) code, that utilizes a randomly generated per-request secret, oblivious to the threat actor, and is persisted between the initial login and the approval request, making the server request unpredictable.