CVE-2013-2776 Privilege escalation in n/a
Local users with sudo permissions can hijack another terminal's authorization to escalate privileges when tty_tickets is enabled on systems lacking /proc.
- 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-2013-2776?
CVE-2013-2776 is a medium-severity vulnerability in Apple Mac Os X, published on 8 Apr 2013. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
sudo 1.3.5 through 1.7.10p5 and 1.8.0 through 1.8.6p6, when running on systems without /proc or the sysctl function with the tty_tickets option enabled, does not properly validate the controlling terminal device, which allows local users with sudo permissions to hijack the authorization of another terminal via vectors related to connecting to the standard input, output, and error file descriptors of another terminal. NOTE: this is one of three closely-related vulnerabilities that were originally assigned CVE-2013-1776, but they have been SPLIT because of different affected versions.
Weakness: CWE-264
Which versions are affected by CVE-2013-2776?
It affects 2 products.
Products include Apple Mac Os X, Todd Miller Sudo.
How do I fix CVE-2013-2776?
Upgrade to a fixed version.
Is CVE-2013-2776 being exploited?
There is no known exploitation of CVE-2013-2776 in the wild and no public exploit code.
Other vulnerabilities in Apple Mac Os X
Sources
Also known as DEBIAN-CVE-2013-2776, GHSA-crcj-xh9h-7wr8.