Security Bulletin
Summary
A vulnerability has been addressed in the GSKit component in the underlying Tivoli Storage Manager (IBM Spectrum Protect) API included in IBM Tivoli Storage Manager FastBack for Workstations (IBM Spectrum Protect for Workstations).
Vulnerability Details
CVEID: CVE-2016-0201
DESCRIPTION: IBM GSKit could allow a remote attacker to obtain sensitive information, caused by a MD5 collision. An attacker could exploit this vulnerability to obtain authentication credentials.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109310 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
Tip: Beginning with Version 7.1.3, Tivoli Storage Manager FastBack for Workstations is now IBM Spectrum Protect for Workstations. Some applications such as the software fulfillment systems and IBM License Metric Tool use the new product name. However, the software and its product documentation continue to use the Tivoli Storage Manager product name. To learn more about the rebranding transition, see http://www.ibm.com/support/docview.wss?uid=swg21963634.
Affected Products and Versions
The following levels of IBM Tivoli Storage Manager FastBack for Workstations (IBM Spectrum Protect for Workstations) are affected:
- 7.1.1.0 through 7.1.4.10
- 6.3.1.0 through 6.3.1.16
Remediation/Fixes
Workarounds and Mitigations
Tivoli Storage Manager FastBack for Workstations is affected by this vulnerability only when using the Tivoli Storage Manager (TSM) Server as a remote backup location and TLS 1.2 (or higher) protocols are used by TSM for SSL sessions. TSM as delivered uses TLS 1.1 and lower protocols for SSL sessions. The GSKit component of TSM is only vulnerable to this security issue if SSL sessions use TLS 1.2 (or higher) protocol.
No action is required if FastBack for Workstations is not using the TSM Server as a remote backup location.
No action is required if the TSM Server is being used as a remote backup location and the following conditions are both true:
- The SSLTLS12 and SSLDISABLELEGACYTLS parameters are not present (this is the default) or are both parameters are set to NO in the TSM server options file. The TSM server options file is located in the dsmserv.opt file in the server instance directory.
- The SSLDISABLELEGACYTLS parameter is not present (this is the default) or is set to NO in the TSM client options file. The TSM client options file is located in file dsm.opt in the install directory.
If the values for the above parameters are set to YES, then they should be changed to NO to eliminate exposure to this security issue.
In the TSM server options file (dsmserv.opt), specify the following parameters:
SSLTLS12 no
SSLDISABLELEGACYTLS no
In the TSM client options files, specify the following parameters in file dsm.opt file in the install directory:
SSLDISABLELEGACYTLS no
If these parameters are changed, the TSM server must be recycled.
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References
Change History
01 March 2016 - Original version published
21 June 2016 - added 7.1 fix links
30 August 2016 - added 6.3 fix links
*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.
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Document Information
Modified date:
17 June 2018
UID
swg21974685