GNU a2ps psmandup.in script symlink attack

gnu-a2ps-psmanupin-symlink (18672)

Medium Risk

Description:

GNU a2ps could allow a local attacker to launch a symlink attack. The psmandup.in script creates insecure temporary files. 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:

Apply the appropriate update for your system. See References.

References:

• GNU a2ps Web page: a2ps - GNU Project - Free Software Foundation (FSF).
• BID-12109: GNU A2PS psmandup.in Script Insecure Temporary File Vulnerability

Platforms Affected:

• GNU A2ps 4.13b

Reported:

Dec 27, 2004

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