RealNetworks Helix Server < 11.1.8/12.0.1 Multiple Vulnerabilities

This script is Copyright (C) 2009-2011 Tenable Network Security, Inc.


Synopsis :

The remote media streaming server is affected by multiple
vulnerabilities.

Description :

The remote host is running a version of RealNetworks Helix Server
older than 11.1.8 / 12.0.1. Such versions are reportedly affected by
multiple issues :

- A vulnerability involving an RTSP 'DESCRIBE' request
could allow an unauthenticated attacker to execute
arbitrary code on the remote system. (ZDI-CAN-293)

- By sending three specially crafted RTSP 'SETUP' requests
it may be possible to crash the remote RTSP server.
(ZDI-CAN-323)

- A heap overflow vulnerability in 'DataConvertBuffer',
could allow an unauthenticated attacker to execute
arbitrary code on the remote system. (ZDI-CAN-333)

- A heap overflow vulnerability in NTLM Authentication
could allow an unauthenticated attacker to execute
arbitrary code on the remote system. (ZDI-CAN-380)

See also :

http://docs.real.com/docs/security/SecurityUpdate121508HS.pdf

Solution :

Update to RealNetworks Helix Server 11.1.8 / 12.0.1 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: 35555 (helix_svr_remote_code_exec.nasl)

Bugtraq ID: 33059

CVE ID: CVE-2008-5911