MS09-071: Vulnerabilities in Internet Authentication Service Could Allow Remote Code Execution (974318)

This script is Copyright (C) 2009-2013 Tenable Network Security, Inc.


Synopsis :

The remote Windows host has multiple vulnerabilities in an
authentication service.

Description :

The remote Windows host has the following vulnerabilities in the
Internet Authentication Service :

- There is a memory corruption vulnerability in the PEAP
authentication implementation. A remote, unauthenticated
attacker could exploit this to execute arbitrary code as
SYSTEM. (CVE-2009-2505)

- Sending a specially crafted MS-CHAP v2 authentication
request could allow a remote attacker to obtain the
privileges of a specific, authorized user. (CVE-2009-3677)

See also :

http://technet.microsoft.com/en-us/security/bulletin/MS09-071

Solution :

Microsoft has released a set of patches for Windows 2000, XP, 2003,
Vista, and 2008.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows : Microsoft Bulletins

Nessus Plugin ID: 43063 ()

Bugtraq ID: 37197
37198

CVE ID: CVE-2009-2505
CVE-2009-3677