CVE-2021-42711 Privilege escalation in n/a
An attacker can escalate privileges to SYSTEM by exploiting insecure temporary file permissions during a repair operation in the Barracuda Network Access Client.
- 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-2021-42711?
CVE-2021-42711 is a high-severity vulnerability in n/a, published on 1 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Barracuda Network Access Client before 5.2.2 creates a Temporary File in a Directory with Insecure Permissions. This file is executed with SYSTEM privileges when an unprivileged user performs a repair operation.
Weakness: CWE-276
Which versions are affected by CVE-2021-42711?
It affects 1 product.
Products include Barracuda Network Access Client.
How do I fix CVE-2021-42711?
No fix has been published for CVE-2021-42711 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-42711 being exploited?
There is no known exploitation of CVE-2021-42711 in the wild and no public exploit code.
Sources
Also known as GHSA-x3fm-96g7-h798.