davfs2 temporary .pid files symlink attack

davfs2-tmp-pid-symlink (18056) The risk level is classified as MediumMedium Risk

Description:

WEB-DAV Linux File System (dav2fs) creates temporary .pid files insecurely. A local attacker could use this vulnerability to create symbolic links from a temporary file to overwrite or create arbitrary files on the system with elevated privileges.

*CVSS:

Base Score: 2.9
  Access Vector: Local
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 2.5
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

File Manipulation

Remedy:

Upgrade to the latest version of dav2fs (0.2.3 or later), available from the WEB-DAV Linux File System Web page. See References.

For Gentoo Linux:
Upgrade to the latest version of davfs2 (0.2.2-r1 or later), as listed in GLSA 200411-22. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

Platforms Affected:

  • Gentoo Linux
  • WEB-DAV Linux File System (dav2fs) WEB-DAV Linux File System (dav2fs) prior to 0.2.3

Reported:

Nov 12, 2004

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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