RHSA-2013:0856 - Security Advisory

Topic

An updated pki-tps package that fixes two security issues is now available
for Red Hat Certificate System 8.1.

The Red Hat Security Response Team has rated this update as having
important 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 Certificate System (RHCS) is an enterprise software system designed
to manage enterprise Public Key Infrastructure (PKI) deployments. The Token
Processing System (TPS) is a PKI subsystem that acts as a Registration
Authority (RA) for authenticating and processing enrollment requests, PIN
reset requests, and formatting requests from the Enterprise Security
Client.

A format string flaw was found in the TPS subsystem. An authenticated
Certificate System user could use this flaw to crash the Apache HTTP Server
child process, possibly interrupting the processing of other users'
requests, or possibly execute arbitrary code with pkiuser privileges.
(CVE-2013-1886)

A cross-site scripting flaw was discovered in the TPS subsystem. An
attacker could use this flaw to perform a cross-site scripting (XSS) attack
against victims using Certificate System's web interface. (CVE-2013-1885)

All users of Red Hat Certificate System are advised to upgrade to this
updated package, which corrects these issues. After installing this update,
all Red Hat Certificate System subsystems must be restarted ("/etc/init.d
/[instance-name] restart") 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

• Red Hat Certificate System 8 x86_64
• Red Hat Certificate System 8 i386

Fixes

• BZ - 923039 - CVE-2013-1885 Certificate System: pki-tps XSS flaw
• BZ - 924870 - CVE-2013-1886 Certificate System: pki-tps format string injection

CVEs

• CVE-2013-1886
• CVE-2013-1885

References

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