CVE-2013-2776
Publication date 8 April 2013
Last updated 24 July 2024
Ubuntu priority
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.
Notes
jdstrand
see CVE-2013-1776 for complete information. This CVE was split from CVE-2013-1776 for accounting purposes
References
Other references
- http://xforce.iss.net/xforce/xfdb/82453
- http://www.sudo.ws/sudo/alerts/tty_tickets.html
- http://www.sudo.ws/repos/sudo/rev/0c0283d1fafa
- http://www.sudo.ws/repos/sudo/rev/049a12a5cc14
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.517440
- http://www.openwall.com/lists/oss-security/2013/02/27/31
- http://www.debian.org/security/2012/dsa-2642
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839
- https://www.cve.org/CVERecord?id=CVE-2013-2776