CVE-2011-3628 Privilege escalation in n/a
Local attackers can escalate privileges by manipulating the PATH environment variable in specific PAM configurations.
- 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-2011-3628?
CVE-2011-3628 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 15 Apr 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Untrusted search path vulnerability in pam_motd (aka the MOTD module) in libpam-modules before 1.1.3-2ubuntu2.1 on Ubuntu 11.10, before 1.1.2-2ubuntu8.4 on Ubuntu 11.04, before 1.1.1-4ubuntu2.4 on Ubuntu 10.10, before 1.1.1-2ubuntu5.4 on Ubuntu 10.04 LTS, and before 0.99.7.1-5ubuntu6.5 on Ubuntu 8.04 LTS, when using certain configurations such as "session optional pam_motd.so", allows local users to gain privileges by modifying the PATH environment variable to reference a malicious command, as demonstrated via uname.
Which versions are affected by CVE-2011-3628?
It affects 2 products.
Products include Canonical Libpam-Modules, Canonical Ubuntu Linux.
How do I fix CVE-2011-3628?
Apply the vendor's patch.
Is CVE-2011-3628 being exploited?
There is no known exploitation of CVE-2011-3628 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2011-3628, GHSA-9hgw-rg97-xh38.