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Security Bulletin: IBM Spectrum Protect (formerly Tivoli Storage Manager) Unix Clients are vulnerable to unauthorized access to files by non-privileged users (CVE-2017-1301)

Security Bulletin


Summary

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.

Vulnerability Details

CVEID: CVE-2017-1301
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

The following versions of the IBM Spectrum Protect (formerly Tivoli Storage Manager) Client are affected:

  • 8.1.0.0 through 8.1.0.2
  • 7.1.0.0 through 7.1.6.6 - AIX, HP-UX, Linux x86, and Solaris platforms
    7.1.0.0 through 7.1.6.7 - Macintosh platform
  • 6.4 and below all levels (6.4 and below are EOS)

Remediation/Fixes

IBM Spectrum Protect (Tivoli Storage Manager) Client Release Fixing VRM Level Platform APAR Link to Fix / Fix Availability Target
8.1 8.1.2 AIX
HP-UX
Linux x86
Macintosh
Solaris
IT20286 http://www.ibm.com/support/docview.wss?uid=swg24043887
7.1 7.1.8 AIX
HP-UX
Linux x86
Macintosh
Solaris
IT20286 http://www.ibm.com/support/docview.wss?uid=swg24043984
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

None

Get Notified about Future Security Bulletins

References

Complete CVSS v3 Guide
On-line Calculator v3

Related information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

02 October 2017 - Original version 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.

Cross reference information
Segment Product Component Platform Version Edition
Storage Management Tivoli Storage Manager Client AIX, HP-UX, Linux, OS X, Solaris 6.4, 7.1 All Editions
Storage Management IBM Spectrum Protect Client AIX, HP-UX, Linux, OS X, Solaris 7.1, 8.1 All Editions

Document information

More support for: IBM Spectrum Protect
Client

Software version: 7.1, 8.1

Operating system(s): AIX, HP-UX, Linux, OS X, Solaris

Software edition: All Editions

Reference #: 2006248

Modified date: 02 October 2017


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