Tag Archives: vulnerability

Remote Code Execution – Acronis Cyber Infrastructure (CVE-2023-45249)

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Remote Code Execution - Acronis Cyber Infrastructure (CVE-2023-45249)

Remote Code Execution – Acronis Cyber Infrastructure (CVE-2023-45249). Due to the default passwords used, a remote unauthenticated attacker can gain access to an Acronis Cyber ​​Infrastructure (ACI) server and execute arbitrary code.

ACI is a hyperconverged platform for storage, backup, computing, virtualization and networking.

🔻 Patches that fix this vulnerability were released on October 30, 2023 (❗️).
🔻 After 9-10 months, on July 24 of this year, Acronis noted in a bulletin that the vulnerability was exploited in the wild. The purpose of exploitation was to install a cryptominer. On July 29, the vulnerability was added to the CISA KEV.

Some sources report 20,000 service providers using ACI. I have not found any confirmation of this. Perhaps there is confusion with Acronis Cyber ​​Protect. However, there are probably quite a few large companies using ACI. If you work for such a company, be sure to pay attention.

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Remote Code Execution vulnerability – Artifex Ghostscript (CVE-2024-29510)

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Remote Code Execution vulnerability - Artifex Ghostscript (CVE-2024-29510)

Remote Code Execution vulnerability – Artifex Ghostscript (CVE-2024-29510). Memory corruption allows to bypass the SAFER sandbox and execute arbitrary code.

Ghostscript is a PostScript and PDF document interpreter. It is used in ImageMagick, LibreOffice, GIMP, Inkscape, Scribus, CUPS, etc. It is available for many OS.

🔻 Ghostscript version 10.03.1, which fixes the vulnerability, was released on May 2.
🔻 On July 2, Codean Labs published a detailed analysis of this vulnerability and PoC. In the video they launch the calculator by opening a special ps file with the ghostscript utility or a special odt file in LibreOffice.
🔻 On July 10, a functional exploit was released on GitHub. And on July 19, a module for Metasploit was released.

👾 The media writes that the vulnerability is being exploited in the wild. However, it’s based on a single microblog post by some Portland developer. 🤷‍♂️ I think more reliable evidence of exploitation in attacks will appear soon.

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Qualys introduces TruRisk Eliminate for augmented Patch Management

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Qualys introduces TruRisk Eliminate for augmented Patch Management

Qualys introduces TruRisk Eliminate for augmented Patch Management. Qualys didn’t wait until the event and published a blog post. What they presented is an implementation of workarounds.

In the screenshot of TruRisk Eliminate we see a filtered list of vulnerabilities on assets, the criticality of vulnerabilities in the form of QDS, the Remediations and Mitigations columns.

🔹 Remediations – installing a patch or installing a patch with reconfiguration.

🔹 Mitigations – workarounds that neutralize the vulnerability instead of patching: changing the registry key, changing the config, removing the application, blocking the port, isolating the device, etc.

And there is a button to perform an action on the asset (using an agent) with a choice of Remediations/Mitigations option.

It’s a logical step. Since they gave the ability to patch, why not give the ability to apply workarounds. But Qualys will have a lot of difficulties with this. 🫣

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“The Mystery of the Hole”: Remote Code Execution – Internet Explorer (CVE-2012-4792)

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The Mystery of the Hole: Remote Code Execution - Internet Explorer (CVE-2012-4792)

“The Mystery of the Hole”: Remote Code Execution – Internet Explorer (CVE-2012-4792). Yesterday, an old vulnerability “CDwnBindInfo” from 2012 was added to CISA KEV: the user opens a malicious website in MS Internet Explorer 6–8 and the attacker gets RCE on user’s host. The vulnerability has been actively exploited since the end of 2012 as 0day in watering hole attacks on US organizations. In particular, the malicious code was placed on the hacked Council on Foreign Relations (CFR) website.

Why was the vulnerability added to CISA KEV only now?

🔹 New attacks on legacy systems (Win XP/ Vista/7, WinServer 2003/2008) were discovered? 🤪 It’s unlikely.

🔹 They saw a vulnerability with confirmed incidents, but it wasn’t in CISA KEV, so they added it? More likely, but why only this vulnerability? 🧐

🔹 There was no formal excuse for urgently updating found legacy systems? A bit strange. 🤷‍♂️

Let’s wait for updates. 🙂

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About the “EvilVideo” vulnerability in Telegram for Android

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About the EvilVideo vulnerability in Telegram for Android

About the “EvilVideo” vulnerability in Telegram for Android. The post was published on the ESET blog. They stated that the exploit is for sale on the Dark Net.

🔻 The attacker creates a payload, which is displayed in Telegram for Android not as a file, but as a video preview. By default, media files in Telegram are downloaded automatically when the user sees a message in a chat. This payload will also be downloaded automatically as well.
If the user clicks on the preview, he sees a Telegram error asking him to use an external media player.
If the user agrees, an attempt is made to install the APK.
If the user allows the installation of APK from Telegram and clicks on the preview again, a window appears to confirm the installation of the application.
If the user presses “install”, the malware installs. 👾
🎞 There is a video demo.

🔻 Fixed in 10.14.5, older versions are vulnerable.

This is far from 0click, but with good social engineering, the efficiency can be high.

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July Linux Patch Wednesday

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July Linux Patch Wednesday

July Linux Patch Wednesday. There are 705 vulnerabilities, of which 498 are in the Linux Kernel. There are no vulnerabilities with signs of exploitation in the wild yet, 11 have public exploits.

🔻 RCE – OpenSSH “regreSSHion” (CVE-2024-6387) is in the absolute top with many variations of exploits on GitHub. Mind the malicious fakes (❗️). I will also mention a similar vulnerability RCE – OpenSSH (CVE-2024-6409) with no exploits yet.
🔻 Public PoC links for DoS in Suricata (CVE-2024-38536) and QEMU (CVE-2024-3567).

According to BDU, public exploits exist for:

🔸 AuthBypass – RADIUS Protocol (CVE-2024-3596), it was also fixed in the July MSPT
🔸 Security Feature Bypass – Exim (CVE-2024-39929) – mime_filename blocking bypass, as well as in Nextcloud (CVE-2024-22403) – eternal OAuth codes
🔸 DoS – OpenTelemetry (CVE-2023-45142)
🔸 Memory Corruption – 7-Zip (CVE-2023-52168)

🗒 Vulristics report on July Linux Patch Wednesday

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What is known about Spoofing – Windows MSHTML Platform (CVE-2024-38112) from the July Microsoft Patch Tuesday?

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What is known about Spoofing - Windows MSHTML Platform (CVE-2024-38112) from the July Microsoft Patch Tuesday?

What is known about Spoofing – Windows MSHTML Platform (CVE-2024-38112) from the July Microsoft Patch Tuesday?

🔻 According to Check Point, attackers use special “.url” files with icons that look like PDF documents. If the user clicks on the file and ignores 2 uninformative warnings, then a malicious HTA application is launched in the outdated Internet Explorer browser built into Windows. 😱 Why in IE? This is all due to the processing of the “mhtml:” prefix in the “.url” file. The July update blocks this. 👍

🔻 Check Point found “.url” samples that could date back to January 2023. According to Trend Micro, the vulnerability is exploited by the APT group Void Banshee to install the Atlantida Stealer malware and collect passwords, cookies and other sensitive data. Void Banshee add malicious “.url” files to archives with PDF books and distribute them through websites, instant messengers and phishing.

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