CVE-2013-1776

Description

sudo 1.3.5 through 1.7.10 and 1.8.0 through 1.8.5, 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 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.

Category

4.4
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory apple.com Vendor Advisory slackware.com Vendor Advisory redhat.com Vendor Advisory sudo.ws Vendor Advisory apple.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/58207 vdb entry
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839
http://www.debian.org/security/2013/dsa-2642 vendor advisory
http://www.sudo.ws/repos/sudo/rev/6b22be4d09f0
http://www.sudo.ws/repos/sudo/rev/632f8e028191
http://www.openwall.com/lists/oss-security/2013/02/27/31 mailing list
http://lists.opensuse.org/opensuse-updates/2013-03/msg00066.html vendor advisory
http://www.sudo.ws/sudo/alerts/tty_tickets.html vendor advisory
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html vendor advisory
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.517440 vendor advisory
https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/87023
http://rhn.redhat.com/errata/RHSA-2013-1353.html vendor advisory
https://support.apple.com/kb/HT205031 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=916365
https://exchange.xforce.ibmcloud.com/vulnerabilities/82453 vdb entry

Frequently Asked Questions

What is the severity of CVE-2013-1776?
CVE-2013-1776 has been scored as a medium severity vulnerability.
How to fix CVE-2013-1776?
To fix CVE-2013-1776, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-1776 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2013-1776 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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