RHSA-2012:1168 - Security Advisory

Topic

Updated condor packages that fix one security issue are now available for
Red Hat Enterprise MRG 2.1 for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

Description

Condor is a specialized workload management system for compute-intensive
jobs. It provides a job queuing mechanism, scheduling policy, priority
scheme, and resource monitoring and management.

Condor installations that rely solely upon host-based authentication were
vulnerable to an attacker who controls an IP, its reverse-DNS entry and has
knowledge of a target site's security configuration. With this control and
knowledge, the attacker could bypass the target site's host-based
authentication and be authorized to perform privileged actions (i.e.
actions requiring ALLOW_ADMINISTRATOR or ALLOW_WRITE). Condor deployments
using host-based authentication that contain no hostnames (IPs or IP globs
only) or use authentication stronger than host-based are not vulnerable.
(CVE-2012-3416)

Note: Condor will not run jobs as root; therefore, this flaw cannot lead to
a compromise of the root user account.

Red Hat would like to thank Ken Hahn and Dan Bradley for reporting this
issue.

All Red Hat Enterprise MRG 2.1 users are advised to upgrade to these
updated packages, which contain a backported patch to correct this issue.
Condor must be restarted for the update to take effect.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• MRG Grid 2 for RHEL 5 x86_64
• MRG Grid 2 for RHEL 5 i386
• MRG Grid from RHUI 2 for RHEL 5 x86_64

Fixes

• BZ - 841175 - CVE-2012-3416 condor: host based authentication does not implement forward-confirmed reverse dns

CVEs

• CVE-2012-3416

References

• https://access.redhat.com/security/updates/classification/#important