Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Mac Os X | <= 10.10.4 |
| Todd Miller | Sudo | <= 1.7.10p4 |
Related Weaknesses (CWE)
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- http://rhn.redhat.com/errata/RHSA-2013-1701.html
- http://www.debian.org/security/2013/dsa-2642
- http://www.openwall.com/lists/oss-security/2013/02/27/31
- http://www.securityfocus.com/bid/58207
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slack
- http://www.sudo.ws/repos/sudo/rev/2f3225a2a4a4Vendor Advisory
- http://www.sudo.ws/repos/sudo/rev/bfa23f089bbaVendor Advisory
- http://www.sudo.ws/sudo/alerts/tty_tickets.htmlVendor Advisory
- https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/87023
- https://bugzilla.redhat.com/show_bug.cgi?id=916365
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82453
- https://support.apple.com/kb/HT205031Vendor Advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839
FAQ
What is CVE-2013-2777?
CVE-2013-2777 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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 hij...
How severe is CVE-2013-2777?
CVE-2013-2777 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-2777?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Mac Os X, Todd Miller Sudo.