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Last updated: 7/22/2014 7:23:41 AM

CVE Publication rate: 18.07

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Vulnerability Workload Index: 6.14
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National Cyber Awareness System

Vulnerability Summary for CVE-2013-2776

Original release date: 04/08/2013
Last revised: 01/27/2014
Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.4 (MEDIUM) (AV:L/AC:M/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: BID
Name: 58207
External Source: CONFIRM
Name: http://www.sudo.ws/repos/sudo/rev/0c0283d1fafa
Type: Advisory
External Source: MISC
Name: https://bugzilla.redhat.com/show_bug.cgi?id=916365
External Source: SLACKWARE
Name: SSA:2013-065-01
External Source: MISC
Name: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839
External Source: XF
Name: sudo-ttytickets-sec-bypass(82453)
External Source: REDHAT
Name: RHSA-2013:1353
External Source: CONFIRM
Name: http://www.sudo.ws/repos/sudo/rev/049a12a5cc14
Type: Advisory
External Source: REDHAT
Name: RHSA-2013:1701
External Source: CONFIRM
Name: http://www.sudo.ws/sudo/alerts/tty_tickets.html
External Source: MISC
Name: https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/87023
External Source: MLIST
Name: [oss-security] 20130227 Re: CVE request: potential bypass of sudo tty_tickets constraints
External Source: DEBIAN
Name: DSA-2642

Vulnerable software and versions

Skip Navigation Links.
Collapse Configuration 1Configuration 1
Collapse OROR
* cpe:/a:todd_miller:sudo:1.8.0
* cpe:/a:todd_miller:sudo:1.8.1
* cpe:/a:todd_miller:sudo:1.8.1p1
* cpe:/a:todd_miller:sudo:1.8.1p2
* cpe:/a:todd_miller:sudo:1.8.2
* cpe:/a:todd_miller:sudo:1.8.3
* cpe:/a:todd_miller:sudo:1.8.3p1
* cpe:/a:todd_miller:sudo:1.8.3p2
* cpe:/a:todd_miller:sudo:1.8.4
* cpe:/a:todd_miller:sudo:1.8.4p1
* cpe:/a:todd_miller:sudo:1.8.4p2
* cpe:/a:todd_miller:sudo:1.8.4p3
* cpe:/a:todd_miller:sudo:1.8.4p4
* cpe:/a:todd_miller:sudo:1.8.4p5
* cpe:/a:todd_miller:sudo:1.8.5
cpe:/a:todd_miller:sudo:1.7.10p4
cpe:/a:todd_miller:sudo:1.7.10p5
cpe:/a:todd_miller:sudo:1.8.6
cpe:/a:todd_miller:sudo:1.8.6p1
cpe:/a:todd_miller:sudo:1.8.6p2
cpe:/a:todd_miller:sudo:1.8.6p3
cpe:/a:todd_miller:sudo:1.8.6p4
cpe:/a:todd_miller:sudo:1.8.6p5
Collapse Configuration 2Configuration 2
Collapse OROR
* cpe:/a:todd_miller:sudo:1.7.10
* cpe:/a:todd_miller:sudo:1.7.9p1
* cpe:/a:todd_miller:sudo:1.7.9
* cpe:/a:todd_miller:sudo:1.7.8p2
* cpe:/a:todd_miller:sudo:1.7.8p1
* cpe:/a:todd_miller:sudo:1.7.8
* cpe:/a:todd_miller:sudo:1.7.7
* cpe:/a:todd_miller:sudo:1.7.6p2
* cpe:/a:todd_miller:sudo:1.7.6p1
* cpe:/a:todd_miller:sudo:1.7.6
* cpe:/a:todd_miller:sudo:1.7.5
* cpe:/a:todd_miller:sudo:1.7.4p5
* cpe:/a:todd_miller:sudo:1.7.4p2
* cpe:/a:todd_miller:sudo:1.7.4p3
* cpe:/a:todd_miller:sudo:1.7.4
* cpe:/a:todd_miller:sudo:1.7.4p1
* cpe:/a:todd_miller:sudo:1.7.4p4
* cpe:/a:todd_miller:sudo:1.7.4p6
* cpe:/a:todd_miller:sudo:1.7.3b1
* cpe:/a:todd_miller:sudo:1.7.2p6
* cpe:/a:todd_miller:sudo:1.7.2p5
* cpe:/a:todd_miller:sudo:1.7.2p4
* cpe:/a:todd_miller:sudo:1.7.2p2
* cpe:/a:todd_miller:sudo:1.7.2p3
* cpe:/a:todd_miller:sudo:1.7.2
* cpe:/a:todd_miller:sudo:1.7.2p1
* cpe:/a:todd_miller:sudo:1.7.2p7
* cpe:/a:todd_miller:sudo:1.7.1
* cpe:/a:todd_miller:sudo:1.7.0
* cpe:/a:todd_miller:sudo:1.6.9p23
* cpe:/a:todd_miller:sudo:1.6.5
* cpe:/a:todd_miller:sudo:1.6.4p2
* cpe:/a:todd_miller:sudo:1.6.9p20
* cpe:/a:todd_miller:sudo:1.6.9p21
* cpe:/a:todd_miller:sudo:1.6.4
* cpe:/a:todd_miller:sudo:1.6.8
* cpe:/a:todd_miller:sudo:1.6.6
* cpe:/a:todd_miller:sudo:1.6.7
* cpe:/a:todd_miller:sudo:1.6.9p22
* cpe:/a:todd_miller:sudo:1.6.2p3
* cpe:/a:todd_miller:sudo:1.6.7p5
* cpe:/a:todd_miller:sudo:1.6.8p12
* cpe:/a:todd_miller:sudo:1.6.3_p7
* cpe:/a:todd_miller:sudo:1.6.9
* cpe:/a:todd_miller:sudo:1.6
* cpe:/a:todd_miller:sudo:1.6.1
* cpe:/a:todd_miller:sudo:1.6.2
* cpe:/a:todd_miller:sudo:1.6.3
* cpe:/a:todd_miller:sudo:1.3.5
cpe:/a:todd_miller:sudo:1.7.10p1
cpe:/a:todd_miller:sudo:1.7.10p2
cpe:/a:todd_miller:sudo:1.7.10p3
* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)