IBM Support

Security Bulletin: TSM client SetUID elevation of privilege (CVE-2014-0907)

Security Bulletin


Summary

A vulnerability in the IBM Tivoli Storage Manager (TSM) AIX and HP-UX clients could allow a local user to gain elevated privilege.

Vulnerability Details

CVE ID:
CVE-2014-0907

DESCRIPTION:

The IBM Tivoli Storage Manager (TSM) AIX and HP-UX client binaries have been compiled in an insecure way. A local attacker could cause malicious code to be run, leading to privilege escalation in instances where these TSM clients run with privileges that the attacker does not have.

CVSS:
CVSS Base Score: 6.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/91869 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

TSM AIX and HP-UX Backup-Archive clients at these release levels:

  • 7.1: 7.1.0.0 through 7.1.0.2
  • 6.4: 6.4.0.0 through 6.4.1.x
  • 6.3: 6.3.0.0 through 6.3.2.0
  • 6.2: 6.2.0.0 through 6.2.5.2, on AIX only. TSM 6.1 is beyond End of Support.
  • 6.1: all levels on AIX only. TSM 6.1 is beyond End of Support.
  • 5.5: all levels on AIX only. TSM 5.5 is beyond End of Support.
  • 5.4: all levels on AIX only. TSM 5.4 is beyond End of Support

Remediation/Fixes

TSM Release First Fixing VRMF Level Client
Platform
APAR Link to fix
7.1 7.1.0.3 AIX
HP-UX
IT00403 http://www.ibm.com/support/docview.wss?&uid=swg24036985

TSM for Space Management package which includes AIX client:
http://www.ibm.com/support/docview.wss?&uid=swg24038150
6.4 6.4.2 AIX
HP-UX
IT00403 http://www.ibm.com/support/docview.wss?uid=swg24037543

TSM for Space Management package which includes AIX client:
http://www.ibm.com/support/docview.wss?&uid=swg24037482
6.3 6.3.2.1 AIX
HP-UX
IT00403 http://www.ibm.com/support/docview.wss?uid=swg24037930

TSM for Space Management package which includes AIX client:
http://www.ibm.com/support/docview.wss?uid=swg24038153
6.2 6.2.5.3 AIX IT00403 http://www.ibm.com/support/docview.wss?uid=swg24036287
6.1
5.5
5.4
6.1.5.6, 5.5.4.3, 5.4.3.6 for support extension customers AIX IT00403 Customers with AIX client support extensions should:
  • contact IBM Support for a fix, or
  • use the Workaround specified below

Customers without support extensions should:
  • upgrade to a fixing level, or
  • use the Workaround specified below.
Contact IBM Support if there are questions about these two options.
If you need further assistance, contact IBM Software Support.

Workarounds and Mitigations

Remove the Trusted Communications Agent (TCA) dsmtca module from the machine.

Get Notified about Future Security Bulletins

References

Complete CVSS v2 Guide
On-line Calculator v2

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Acknowledgement

The vulnerability was reported to IBM by Tim Brown from Portcullis Computer Security Ltd.

Change History

12 August 2014: Original copy published
24 June 2015: Noted that 6.2 is beyond End of Support

*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.

Cross reference information
Segment Product Component Platform Version Edition
Storage Management Tivoli Storage Manager Extended Edition Client AIX, HP-UX 5.4, 5.5, 6.1, 6.2, 6.3, 6.4, 7.1
Storage Management IBM System Storage Archive Manager AIX, HP-UX 6.1.2, 6.3, 6.4, 7.1
Storage Management Tivoli Storage Manager for Space Management AIX

Document information

More support for: Tivoli Storage Manager
Client

Software version: 5.4, 5.5, 6.1, 6.2, 6.3, 6.4, 7.1

Operating system(s): AIX, HP-UX

Reference #: 1680454

Modified date: 24 June 2015