Vulnerability identifier: #VU42929
Vulnerability risk: Medium
Exploitation vector: Network
Exploit availability: No
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
sudo before 1.7.10p5 and 1.8.x before 1.8.6p6, when the tty_tickets option is 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 a session without a controlling terminal device and 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.
Install update from vendor's website.
Vulnerable software versions
Sudo: 1.3.5 - 1.8.6p5
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?