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

Subscribe to My Notifications to be notified of important product support alerts like this.

References

Complete CVSS v2 Guide
On-line Calculator v2

Off

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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

[{"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Client","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"}],"Version":"5.4;5.5;6.1;6.2;6.3;6.4;7.1","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"SSSQWC","label":"Tivoli Storage Manager Extended Edition"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Client","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"}],"Version":"5.4;5.5;6.1;6.2;6.3;6.4;7.1","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"SSAT9S","label":"IBM System Storage Archive Manager"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"}],"Version":"6.1.2;6.3;6.4;7.1","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"SSSR2R","label":"Tivoli Storage Manager for Space Management"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"PF002","label":"AIX"}],"Version":"","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}}]

Tips

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