MS10-049: Vulnerabilities in SChannel could allow Remote Code Execution (980436)

This script is Copyright (C) 2010-2013 Tenable Network Security, Inc.


Synopsis :

It may be possible to execute arbitrary code on the remote Windows
host using the Secure Channel security package.

Description :

The remote Windows host is running a version of the Secure Channel
(SChannel) security package that is affected by one or more of the
following vulnerabilities :

- The SChannel authentication component allows a client to
renegotiate the connection after the initial handshake,
which could be abused to inject information into an encrypted
connection, effectively sending traffic spoofing an
authenticated client. (CVE-2009-3555)

- The way that SChannel validates a certificate request message
sent by a server could lead to a denial of service or even allow
execution of arbitrary code if an attacker can trick a user on
the affected system into connecting to malicious web server over
SSL or TLS. (CVE-2010-2566)

See also :

http://technet.microsoft.com/en-us/security/bulletin/MS10-049

Solution :

Microsoft has released a set of patches for Windows XP, 2003, Vista,
2008, 7, and 2008 R2.

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.9
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows : Microsoft Bulletins

Nessus Plugin ID: 48286 ()

Bugtraq ID: 36935
42246

CVE ID: CVE-2009-3555
CVE-2010-2566