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AUSCERT External Security Bulletin Redistribution
ESB-2013.1342
Security Bulletin: Vulnerability in IBM Rational ClearCase remote client
with potential for privilege escalation (CVE-2013-5373)
26 September 2013
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Rational ClearCase
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Impact/Access: Modify Arbitrary Files -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2013-5373
Reference: http://www-01.ibm.com/support/docview.wss?uid=swg21648811
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Security Bulletin: Vulnerability in IBM Rational ClearCase remote client with
potential for privilege escalation (CVE-2013-5373)
Flash (Alert)
Document information
Rational ClearCase
ClearCase Remote Client
Software version:
8.0.0.3, 8.0.0.4, 8.0.0.5, 8.0.0.6, 8.0.0.7, 8.0.1
Operating system(s):
AIX, HP-UX, Linux, Solaris
Reference #:
1648811
Modified date:
2013-09-23
Abstract
A privilege escalation vulnerability exists in the IBM Rational ClearCase
remote client command line script.
Content
VULNERABILITY DETAILS:
CVE ID: CVE-2013-5373
DESCRIPTION:
A file permissions problem with a script installed by default with IBM
Rational ClearCase could be exploited by a local user to insert additional
commands into the script. These commands would be executed by other users
(privileged or unprivileged) that execute the script, leading to privilege
escalation.
CVSS Base Score: 6.9
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/86791 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:M/Au:N/C:C/I:C/A:C)
AFFECTED VERSIONS:
Rational ClearCase 8.0.0.03 through 8.0.0.07, and 8.0.1. Versions 8.0.0.02 and
earlier are not affected.
REMEDIATION:
The recommended solution is to apply the fix to all previous versions as soon
as practical. Please see below for information on the fixes available.
Fix:
Upgrade to one of the below versions of IBM Rational ClearCase
8.0.0.8: Download document 4035655
8.0.1.1: Download document 4035657
Work around(s):
Remove group and world write permissions from these two files on all hosts
with the RemoteClient installation:
/opt/rational/clearcase/RemoteClient/rcleartool
/opt/rational/clearcase/RemoteClient/rcleartool.conf
Mitigation(s):
Do not execute the script without first examining its contents and those of
the associated conf file.
REFERENCES:
Complete CVSS Guide ( http://www.first.org/cvss/cvss-guide.html )
On-line Calculator V2 ( http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2 )
RELATED INFORMATION:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
ACKNOWLEDGEMENT: None
CHANGE HISTORY:
Sept 16, 2013 Original Copy 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
References section of this Flash.
Note: 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.
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