RealNetworks Helix DNA Server RTSP Service Crafted Require Header Remote Overflow

This script is Copyright (C) 2007-2011 Tenable Network Security, Inc.


Synopsis :

The remote RTSP server is prone to a buffer overflow attack.

Description :

The remote host is running Helix Server or Helix DNA Server, a media
streaming server.

The version of the Helix server installed on the remote host
reportedly contains a heap overflow that is triggered using an RTSP
command with multiple 'Require' headers. An unauthenticated, remote
attacker can leverage this flaw to execute arbitrary code subject to
the privileges under which it operates, by default LOCAL SYSTEM on
Windows.

See also :

http://www.nessus.org/u?dabedd30
http://archives.neohapsis.com/archives/fulldisclosure/2007-08/0432.html

Solution :

Upgrade to Helix Server / Helix DNA Server version 11.1.4 or later.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.3
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Gain a shell remotely

Nessus Plugin ID: 25950 (helix_rtsp_mult_requires_overflow.nasl)

Bugtraq ID: 25440

CVE ID: CVE-2007-4561