SB2013040802 - Permissions, Privileges, and Access Controls in Sudo

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Main Vulnerability Database SB2013040802

SB2013040802 - Permissions, Privileges, and Access Controls in Sudo

Published: April 8, 2013 Updated: August 11, 2020

Security Bulletin ID SB2013040802
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2013-2777)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

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

Install update from vendor's website.

References