FreeBSD : unzip -- permission race vulnerability (9750cf22-216d-11da-bc01-000e0c2e438a)

This script is Copyright (C) 2006-2013 Tenable Network Security, Inc.


Synopsis :

The remote FreeBSD host is missing one or more security-related
updates.

Description :

Imran Ghory reports a vulnerability within unzip. The vulnerability is
caused by a race condition between extracting an archive and changing
the permissions of the extracted files. This would give an attacker
enough time to remove a file and hardlink it to another file owned by
the user running unzip. When unzip changes the permissions of the file
it could give the attacker access to files that normally would not
have been accessible for others.

See also :

http://marc.info/?l=bugtraq&m=112300046224117
http://www.nessus.org/u?ef260a48

Solution :

Update the affected packages.

Risk factor :

Low / CVSS Base Score : 1.2
(CVSS2#AV:L/AC:H/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 1.0
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 21480 (freebsd_pkg_9750cf22216d11dabc01000e0c2e438a.nasl)

Bugtraq ID: 14450

CVE ID: CVE-2005-2475

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