CVE-2013-2777

MEDIUM

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.

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839

http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html

http://rhn.redhat.com/errata/RHSA-2013-1701.html

http://www.debian.org/security/2013/dsa-2642

http://www.openwall.com/lists/oss-security/2013/02/27/31

http://www.securityfocus.com/bid/58207

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.517440

http://www.sudo.ws/repos/sudo/rev/2f3225a2a4a4

http://www.sudo.ws/repos/sudo/rev/bfa23f089bba

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

https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/87023

https://bugzilla.redhat.com/show_bug.cgi?id=916365

https://exchange.xforce.ibmcloud.com/vulnerabilities/82453

https://support.apple.com/kb/HT205031

Details

Source: MITRE

Published: 2013-04-08

Updated: 2017-08-29

Type: CWE-264

Risk Information

CVSS v2.0

Base Score: 4.4

Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.4

Severity: MEDIUM