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CVE-2013-2777

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…

Published Apr 8, 2013appleCWE-264EPSS 0.36%

Overview

CVE-2013-2777 is a medium-severity vulnerability affecting apple mac_os_x. It was published on April 8, 2013 and has a CVSS 2.0 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from apple. Update mac_os_x to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
applemac_os_x0Affected
todd_millersudo0Affected

References

Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=701839Reflists.apple.com/archives/security-announce/2015/Aug/msg00001.htmlRefrhn.redhat.com/errata/RHSA-2013-1701.htmlRefwww.debian.org/security/2013/dsa-2642Refwww.openwall.com/lists/oss-security/2013/02/27/31Refwww.securityfocus.com/bid/58207Refwww.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.517440Refwww.sudo.ws/repos/sudo/rev/2f3225a2a4a4Refwww.sudo.ws/repos/sudo/rev/bfa23f089bbaRefwww.sudo.ws/sudo/alerts/tty_tickets.html

How CyberStrike helps

Frequently asked questions

What is CVE-2013-2777?

CVE-2013-2777 is a medium-severity vulnerability affecting apple mac_os_x. It was published on April 8, 2013 and has a CVSS 2.0 base score of 4.4 (MEDIUM).

How severe is CVE-2013-2777?

This vulnerability has a CVSS 2.0 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-2777?

Check the references section for vendor advisories and patches from apple. Update mac_os_x to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-2777?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-2777 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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