Plait temporary file symlink

plait-file-symlink (44786) The risk level is classified as MediumMedium Risk

Description:

Plait could allow a local attacker to launch a symlink attack. The plaiter and plait scripts create insecure temporary files. A local attacker could exploit this vulnerability by creating a symbolic link from a temporary file to other files on the system, which would allow the attacker to overwrite arbitrary files on the system with elevated privileges.

*CVSS:

Base Score: 3.3
  Access Vector: Local
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 2.9
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

File Manipulation

Remedy:

Upgrade to the latest version of Plait (1.6 or later), available from SourceForge.net: Files. See References.

References:

  • Debian Bug report logs - #496381: The possibility of attack with the help of symlinks in some Debian packages.
  • SourceForge.net: Files: Plait (play) command-line jukebox, File Release Notes and Changelog, Release Name: 1.6.
  • BID-30928: Plait Insecure Temporary File Creation Vulnerability
  • CVE-2008-4085: plaiter in Plait before 1.6 allows local users to overwrite arbitrary files via a symlink attack on (1) cut.$$, (2) head.$$, (3) awk.$$, and (4) ps.$$ temporary files in /tmp/.
  • OSVDB ID: 47868: Plait Multiple Script Temporary File Symlink Arbitrary File Overwrite
  • SA31617: Plait Insecure Temporary Files

Platforms Affected:

  • Plait Plait 1.0
  • Plait Plait 1.1
  • Plait Plait 1.2
  • Plait Plait 1.3
  • Plait Plait 1.4
  • Plait Plait 1.4.1
  • Plait Plait 1.4.2
  • Plait Plait 1.5
  • Plait Plait 1.5.1
  • Plait Plait 1.5.2

Reported:

Aug 24, 2008

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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page

* 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.
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.

About IBM Internet Security Systems

IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia? integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force? research and development team ? an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.