-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
Security Bulletin: XML entity expansion vulnerabilities in
19 September 2014
AusCERT Security Bulletin Summary
Product: IBM Rational ClearCase
Operating System: AIX
Impact/Access: Denial of Service -- Remote/Unauthenticated
CVE Names: CVE-2014-3090
- --------------------------BEGIN INCLUDED TEXT--------------------
Security Bulletin: XML entity expansion vulnerabilities in ClearCase
More support for:
CCRC WAN Server
7.1, 184.108.40.206, 220.127.116.11, 7.1.1, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206,
220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 7.1.2, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168,
22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199,
188.8.131.52, 184.108.40.206, 8.0, 220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 184.108.40.206,
220.127.116.11, 18.104.22.168, 22.214.171.124, 126.96.36.199, 188.8.131.52, 8.0.1, 184.108.40.206, 220.127.116.11, 18.104.22.168,
AIX, HP-UX, Linux, Solaris, Windows
IBM Rational ClearCase is vulnerable to XML entity expansion attacks. These
attacks could cause a denial of service.
CVE ID: CVE-2014-3090
Description: IBM Rational ClearCase is vulnerable to XML entity expansion
attacks. A malicious server could exhaust process memory on a client. A
malicious client could cause denial of service on a server.
The vulnerable components are:
CCRC WAN Server / CM Server
Perl CC/CQ integration trigger scripts (clients)
CMAPI Java interface (clients)
ClearCase remote client
CMI and OSLC-based ClearQuest integrations (clients)
CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/94256 for the current
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)
IBM Rational ClearCase is vulnerable to a denial of service, caused by the
failure to properly detect recursion during entity expansion by the XML parser.
A remote attacker could exploit this vulnerability using a specially crafted
XML document containing a large number of nested entity references to consume
all available memory resources.
Affected Products and Versions
ClearCase version Status
8.0.1 through 22.214.171.124 Affected
8.0 through 126.96.36.199 Affected
7.1.2 through 188.8.131.52 Affected
7.1.0.x, 7.1.1.x (all versions and fix packs) Affected
7.0.x Not affected
The solution is to upgrade to a newer fix pack of ClearCase.
Affected Versions Applying the fix
8.0.1.x Install Rational ClearCase Fix Pack 4 (184.108.40.206) for 8.0.1
8.0.0.x Install Rational ClearCase Fix Pack 11 (220.127.116.11) for 8.0
7.1.2.x Install Rational ClearCase Fix Pack 14 (18.104.22.168) for 7.1.2
7.1.0.x Install Rational ClearCase Fix Pack 14 (22.214.171.124) for 7.1.2
Note: 126.96.36.199 inter-operates with all 7.1.1.x systems, and can be installed in
the same way as 7.1.1.x fix packs.
Workarounds and Mitigations
Disable the Perl trigger based ClearCase/ClearQuest integration until you apply
the fixes to clients. Disable the CMI and OSLC-based CQ integrations until you
apply the fixes to clients.
Disable CCRC WAN server until you apply the fixes to servers.
Complete CVSS Guide
On-line Calculator V2
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
* 17 September 2014: Original version published.
*The CVSS Environment Score is customer environment specific and will ultimately
impact the Overall CVSS Score. Customers can evaluate the impact of this
vulnerability in their environments by accessing the links in the Reference
section of this Security Bulletin.
According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF
ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY
ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to email@example.com
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: firstname.lastname@example.org
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----