CVE-2010-3431 Information disclosure in n/a
Local attackers can read sensitive information via symlink attacks due to unchecked setfsuid return values in PAM modules.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2010-3431?
CVE-2010-3431 is a low-severity vulnerability in n/a, published on 24 Jan 2011. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not check the return value of the setfsuid system call, which might allow local users to obtain sensitive information by leveraging an unintended uid, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.
Which versions are affected by CVE-2010-3431?
It affects 1 product.
Products include Linux-Pam Linux-Pam.
How do I fix CVE-2010-3431?
Apply the vendor's patch.
Is CVE-2010-3431 being exploited?
There is no known exploitation of CVE-2010-3431 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2010-3431, GHSA-65hr-mfq3-4rjr.