CVE-2023-51636 Avira Prime Link Following Local Privilege Escalation Vulnerability
Local attackers can escalate privileges to SYSTEM by exploiting a symbolic link flaw in the Avira Spotlight Service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-51636?
CVE-2023-51636 is a high-severity path traversal vulnerability in Avira Prime, published on 22 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Avira Prime Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avira Prime. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the Avira Spotlight Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-21600.
Weakness: CWE-59
Which versions are affected by CVE-2023-51636?
It affects 1 product.
Products include Avira Avira Prime.
How do I fix CVE-2023-51636?
No fix has been published for CVE-2023-51636 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2023-51636 being exploited?
There is no known exploitation of CVE-2023-51636 in the wild and no public exploit code.
Sources
Also known as GHSA-c2xc-682q-ghp8.