CVE-2024-5102: Elevation of Privelage via symlinked file in Avast Antivirus
First published: Mon Jun 10 2024(Updated: )
A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\SYSTEM. The vulnerability exists within the "Repair" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\SYSTEM. A low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance. This issue affects Avast Antivirus prior to 24.2.
Credit: security@nortonlifelock.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| Avast Antivirus | <24.2 | |
| Microsoft Windows |
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Frequently Asked Questions
What is the severity of CVE-2024-5102?
CVE-2024-5102 is considered a high severity vulnerability due to its potential for privilege escalation.
How do I fix CVE-2024-5102?
To fix CVE-2024-5102, update Avast Antivirus to version 24.2 or later.
What is the impact of CVE-2024-5102?
The impact of CVE-2024-5102 includes the ability for a user to delete arbitrary files or run processes with NT AUTHORITY\SYSTEM privileges.
Which versions of Avast Antivirus are affected by CVE-2024-5102?
CVE-2024-5102 affects versions of Avast Antivirus prior to 24.2.
Where can I find more information about CVE-2024-5102?
More information about CVE-2024-5102 can typically be found in the security advisories released by Avast.
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