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

high Nessus Plugin ID 48286

Language:

New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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)

Solution

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

See Also

https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2010/ms10-049

Plugin Details

Severity: High

ID: 48286

File Name: smb_nt_ms10-049.nasl

Version: 1.21

Type: local

Agent: windows

Published: 8/11/2010

Updated: 11/15/2018

Dependencies: smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 7.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: E:POC/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/10/2010

Vulnerability Publication Date: 11/4/2009

Reference Information

CVE: CVE-2009-3555, CVE-2010-2566

BID: 36935, 42246

MSFT: MS10-049

MSKB: 980436

CWE: 310