Rapid7 Vulnerability & Exploit Database

CESA-2004:174: utempter security update

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CESA-2004:174: utempter security update

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published
08/18/2004
Created
07/25/2018
Added
03/12/2010
Modified
07/04/2017

Description

An updated utempter package that fixes a potential symlink vulnerability is now available.

Utempter is a utility that allows terminal applications such as xterm and screen to update utmp and wtmp without requiring root privileges. Steve Grubb discovered a flaw in Utempter which allowed device names containing directory traversal sequences such as '/../'. In combination with an application that trusts the utmp or wtmp files, this could allow a local attacker the ability to overwrite privileged files using a symlink. Users should upgrade to this new version of utempter, which fixes this vulnerability.

Solution(s)

  • centos-upgrade-utempter

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