RHSA-2011:0434 - Security Advisory

Topic

Updated packages that fix two security issues are now available for Red Hat
Network Satellite 5.3 and 5.4.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

Description

Red Hat Network Satellite (RHN Satellite) is a system management tool for
Linux-based infrastructures. It allows for the provisioning, remote
management and monitoring of multiple Linux deployments with a single,
centralized tool.

RHN Satellite incorrectly exposed an obsolete XML-RPC API for configuring
package group (comps.xml) files for channels. An authenticated user could
use this flaw to gain access to arbitrary files accessible to the RHN
Satellite server process, and prevent clients from performing certain yum
operations. (CVE-2010-1171)

A flaw was found in the way RHN Satellite rewrote certain URLs. An
unauthenticated user could use a specially-crafted HTTP request to obtain
sensitive information about the host system RHN Satellite was running on.
They could also use RHN Satellite as a distributed denial of service tool,
forcing it to connect to an arbitrary service at an arbitrary IP address
via a specially-crafted HTTP request. (CVE-2009-0788)

Note: Refer to the Solution section below for manual steps that may be
required to fully address the CVE-2009-0788 issue.

Users of RHN Satellite 5.3 and 5.4 are advised to upgrade to these updated
packages, which contain backported patches to correct these issues. The RHN
Satellite server must be restarted ("rhn-satellite restart") for this
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/kb/docs/DOC-11259

The patch for CVE-2009-0788 includes changes to
"/etc/httpd/conf.d/zz-spacewalk-www.conf". If you have manually edited
this file, this erratum will not overwrite or replace your existing
version, but will create a new file containing the fixes,
"/etc/httpd/conf.d/zz-spacewalk-www.conf.rpmnew". If this .rpmnew file
exists after installing the update, the following steps must be
performed to fully fix CVE-2009-0788:

1) Create a backup copy of your
"/etc/httpd/conf.d/zz-spacewalk-www.conf" file.

2) Carefully review your manual zz-spacewalk-www.conf changes, and
merge those changes into the zz-spacewalk-www.conf.rpmnew file.

3) Once you have merged all your manual changes into
zz-spacewalk-www.conf.rpmnew, save this new version as
"/etc/httpd/conf.d/zz-spacewalk-www.conf", and then restart the RHN
Satellite server ("rhn-satellite restart").

Affected Products

• Red Hat Satellite with Embedded Oracle 5.4 for RHEL 5 x86_64
• Red Hat Satellite with Embedded Oracle 5.4 for RHEL 5 i386
• Red Hat Satellite with Embedded Oracle 5.3 x86_64
• Red Hat Satellite with Embedded Oracle 5.3 i386

Fixes

• BZ - 491365 - CVE-2009-0788 rhn_satellite: Incorrect mod_rewrite rules (information disclosure, abuse as distributed DoS tool)
• BZ - 584118 - CVE-2010-1171 rhn_satellite: Improper channel comps information management

CVEs

• CVE-2010-1171
• CVE-2009-0788

References

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