Web Server HTTP User-Agent Header Handling Remote Overflow

This script is Copyright (C) 2002-2014 Tenable Network Security, Inc.


Synopsis :

The remote host is running a web server with a remote buffer overflow
vulnerability.

Description :

It was possible to kill the web server by sending an invalid GET
request with a long User-Agent field. A remote attacker may exploit
this vulnerability to make the web server crash continually or
possibly execute arbitrary code.

See also :

http://marc.info/?l=bugtraq&m=100395487007578&w=2
http://marc.info/?l=bugtraq&m=100342151132277&w=2

Solution :

Upgrade your software or protect it with a filtering reverse proxy.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 6.2
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Web Servers

Nessus Plugin ID: 11069 ()

Bugtraq ID: 3443
3449

CVE ID: CVE-2001-0836