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CVE Database

CVE-2013-1776

Impact: Low
Public: 2013-02-27
Bugzilla: 916365: CVE-2013-1776 sudo: bypass of tty_tickets constraints

Details

The MITRE CVE dictionary describes this issue as:

sudo 1.3.5 through 1.7.10 and 1.8.0 through 1.8.5, 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 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.

Find out more about CVE-2013-1776 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

Base Score: 3.6
Base Metrics: AV:L/AC:L/Au:N/C:P/I:P/A:N
Access Vector: Local
Access Complexity: Low
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
Red Hat Enterprise Linux version 5 (sudo) RHSA-2013:1353 September 30, 2013
Red Hat Enterprise Linux version 6 (sudo) RHBA-2013:0363 February 20, 2013

External References

http://www.sudo.ws/sudo/alerts/tty_tickets.html

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.