medium
4.4
CWE
264
Advisory Published
Updated

CVE-2013-2776

First published: Mon Apr 08 2013(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Sudo=1.3.5
Sudo=1.6
Sudo=1.6.1
Sudo=1.6.2
Sudo=1.6.2p3
Sudo=1.6.3
Sudo=1.6.3_p7
Sudo=1.6.4
Sudo=1.6.4p2
Sudo=1.6.5
Sudo=1.6.6
Sudo=1.6.7
Sudo=1.6.7p5
Sudo=1.6.8
Sudo=1.6.8p12
Sudo=1.6.9
Sudo=1.6.9p20
Sudo=1.6.9p21
Sudo=1.6.9p22
Sudo=1.6.9p23
Sudo=1.7.0
Sudo=1.7.1
Sudo=1.7.2
Sudo=1.7.2p1
Sudo=1.7.2p2
Sudo=1.7.2p3
Sudo=1.7.2p4
Sudo=1.7.2p5
Sudo=1.7.2p6
Sudo=1.7.2p7
Sudo=1.7.3b1
Sudo=1.7.4
Sudo=1.7.4p1
Sudo=1.7.4p2
Sudo=1.7.4p3
Sudo=1.7.4p4
Sudo=1.7.4p5
Sudo=1.7.4p6
Sudo=1.7.5
Sudo=1.7.6
Sudo=1.7.6p1
Sudo=1.7.6p2
Sudo=1.7.7
Sudo=1.7.8
Sudo=1.7.8p1
Sudo=1.7.8p2
Sudo=1.7.9
Sudo=1.7.9p1
Sudo=1.7.10
Sudo=1.7.10p1
Sudo=1.7.10p2
Sudo=1.7.10p3
Apple iOS and macOS<=10.10.4
Sudo=1.7.10p4
Sudo=1.7.10p5
Sudo=1.8.0
Sudo=1.8.1
Sudo=1.8.1p1
Sudo=1.8.1p2
Sudo=1.8.2
Sudo=1.8.3
Sudo=1.8.3p1
Sudo=1.8.3p2
Sudo=1.8.4
Sudo=1.8.4p1
Sudo=1.8.4p2
Sudo=1.8.4p3
Sudo=1.8.4p4
Sudo=1.8.4p5
Sudo=1.8.5
Sudo=1.8.6
Sudo=1.8.6p1
Sudo=1.8.6p2
Sudo=1.8.6p3
Sudo=1.8.6p4
Sudo=1.8.6p5

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2013-2776?

    CVE-2013-2776 has a high severity rating due to its potential to allow local users to hijack sudo privileges from other users.

  • How do I fix CVE-2013-2776?

    To fix CVE-2013-2776, upgrade to sudo version 1.7.10p6 or later, or 1.8.7 or later, where the vulnerability is patched.

  • Who is affected by CVE-2013-2776?

    CVE-2013-2776 affects local users on systems running vulnerable versions of sudo without /proc or sysctl functionalities.

  • What are the vulnerable versions for CVE-2013-2776?

    The vulnerable versions for CVE-2013-2776 range from 1.3.5 to 1.8.6p6 of sudo.

  • Is CVE-2013-2776 fixed in all distributions?

    CVE-2013-2776 is not fixed in all distributions, and users should verify their specific sudo versions against the vulnerability.

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