avast! Server Edition LHA Archive Extended-header Field Processing Overflow

This script is Copyright (C) 2007-2016 Tenable Network Security, Inc.


Synopsis :

The remote Windows host contains an application that is affected by a
buffer overflow.

Description :

The remote host is running avast! Server Edition.

The installed version of avast! Server Edition is reportedly prone to
a heap overflow when processing LHA archives with long filename and
directory-name extended-header fields. An attacker may be able to
exploit this issue to execute arbitrary code on the remote host,
likely with LOCAL SYSTEM privileges.

See also :

http://www.hustlelabs.com/advisories/04072006_alwil.pdf
http://www.nessus.org/u?21384a15

Solution :

Upgrade to avast! Server Edition 4.7.660 or later.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 7.5
(CVSS2#E:ND/RL:U/RC:ND)
Public Exploit Available : false

Family: Windows

Nessus Plugin ID: 24281 (avast_lha_overflow.nasl)

Bugtraq ID: 19903

CVE ID: CVE-2006-4626

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