IBM Spectrum Protect (formerlyTivoli Storage Manager) Unix Clients may use a symbolic link to provide non-privileged users access to files that require root privileges.
DESCRIPTION: IBM Spectrum Protect could allow a local attacker to launch a symlink attack. IBM Spectrum Protect Backup-archive Client creates temporary files insecurely. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to various files on the system, which could allow the attacker to overwrite arbitrary files on the system with elevated privileges.
CVSS Base Score: 4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/125163 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)
Affected Products and Versions
- 126.96.36.199 through 188.8.131.52
- 184.108.40.206 through 220.127.116.11 - AIX, HP-UX, Linux x86, and Solaris platforms
18.104.22.168 through 22.214.171.124 - Macintosh platform
- 6.4 and below all levels (6.4 and below are EOS)
IBM Spectrum Protect (Tivoli Storage Manager) Client Release
|Fixing VRM Level||Platform||APAR||Link to Fix / Fix Availability Target|
|6.4 and below||IBM recommends upgrading to a fixed version (8.1.2 or 7.1.8) of the IBM Spectrum Protect (formerly Tivoli Storage Manager) Client.|
Workarounds and Mitigations
Get Notified about Future Security Bulletins
02 October 2017 - Original version published
07 February 2018 - Removed HP-UX platform from Client 8.1.2 fix
*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.
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.
07 February 2019