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CVE-2012-3440

Status Candidate

Overview

A certain Red Hat script for sudo 1.7.2 on Red Hat Enterprise Linux (RHEL) 5 allows local users to overwrite arbitrary files via a symlink attack on the /var/tmp/nsswitch.conf.bak temporary file.

Related Files

Red Hat Security Advisory 2012-1149-01
Posted Aug 8, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1149-01 - The sudo utility allows system administrators to give certain users the ability to run commands as root. An insecure temporary file use flaw was found in the sudo package's post-uninstall script. A local attacker could possibly use this flaw to overwrite an arbitrary file via a symbolic link attack, or modify the contents of the "/etc/nsswitch.conf" file during the upgrade or removal of the sudo package. This update also fixes the following bugs:

tags | advisory, arbitrary, local, root
systems | linux, redhat
advisories | CVE-2012-3440
MD5 | a91ebe98e1d1be7a637e8f0b5e333130
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