Scientific Linux Security Update : pcs on SL6.x i386/srpm/x86_64

Medium Nessus Plugin ID 83453


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


It was found that the pcs daemon did not sign cookies containing session data that were sent to clients connecting via the pcsd web UI.
A remote attacker could use this flaw to forge cookies and bypass authorization checks, possibly gaining elevated privileges in the pcsd web UI. Note: the pcsd web UI is not enabled by default.

This update also fixes the following bug :

- When the IPv6 protocol was disabled on a system, starting the pcsd daemon on this system previously failed. This update adds the ability for pcsd to fall back to IPv4 when IPv6 is not available. As a result, pcsd starts properly and uses IPv4 if IPv6 is disabled.

After installing the updated packages, the pcsd daemon will be restarted automatically.


Update the affected pcs and / or pcs-debuginfo packages.

See Also

Plugin Details

Severity: Medium

ID: 83453

File Name: sl_20150512_pcs_on_SL6_x.nasl

Version: $Revision: 2.2 $

Type: local

Agent: unix

Published: 2015/05/14

Modified: 2015/05/18

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Patch Publication Date: 2015/05/12

Reference Information

CVE: CVE-2015-1848