Scientific Linux Security Update : bash on SL5.x, SL6.x i386/x86_64 (Shellshock)

This script is Copyright (C) 2014-2015 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

It was found that the fix for CVE-2014-6271 was incomplete, and Bash
still allowed certain characters to be injected into other
environments via specially crafted environment variables. An attacker
could potentially use this flaw to override or bypass environment
restrictions to execute shell commands. Certain services and
applications allow remote unauthenticated attackers to provide
environment variables, allowing them to exploit this issue.
(CVE-2014-7169)

Applications which directly create bash functions as environment
variables need to be made aware of changes to the way names are
handled by this update.

Note: Docker users are advised to use 'yum update' within their
containers, and to commit the resulting changes.

For additional information on CVE-2014-6271 and CVE-2014-7169, refer
to https://securityblog.redhat.com/2014/09/24/bash-specially
crafted-environment-variables-code-injection-attack/

See also :

http://www.nessus.org/u?5a9483a0

Solution :

Update the affected bash, bash-debuginfo and / or bash-doc packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
Public Exploit Available : true

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 77956 ()

Bugtraq ID:

CVE ID: CVE-2014-6271
CVE-2014-7169

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