Security Bulletin: Vulnerability in IBM Rational ClearCase remote client with potential for privilege escalation (CVE-2013-5373)

Security Bulletin


Summary

A privilege escalation vulnerability exists in the IBM Rational ClearCase remote client command line script.

Vulnerability Details

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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 Products and Versions

Rational ClearCase 8.0.0.3 through 8.0.0.7, and 8.0.1.

Remediation/Fixes

Workarounds and Mitigations

Workaround: Remove group and world write permissions from the following two files on all hosts with the RemoteClient installation:

  • /opt/rational/clearcase/RemoteClient/rcleartool
  • /opt/rational/clearcase/RemoteClient/rcleartool.conf

    Mitigation: Do not execute the script without first examining its contents and those of the associated conf file.
  • References

    Related information

    Acknowledgement

    None

    Change History

    * 16 September 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 Reference section of this Security Bulletin.

    Disclaimer

    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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    Document information


    More support for:

    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:

    2014-02-17

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