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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
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

Off

Change History

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.

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:
07 February 2019

UID

swg22006248