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Vulnerability Note VU#722753

Microsoft IP Source Route Vulnerability

Overview

A vulnerability in Microsoft Windows could allow a remote attacker to execute arbitrary code on a vulnerable system.

I. Description

Source routing is a technique to determine the network route for a packet based on information supplied by the sender in the IP packet. The TCP/IP driver in some versions of Microsoft Windows contains a buffer overflow in the handling of packets with source routing information. The driver fails to validate the length of a message before it is passed to an allocated buffer. Microsoft states that IP packets containing IP source route options 131 and 137 could be used to initiate a connection with the affected components.

II. Impact

A remote attacker with the ability to supply a specially crafted packet may be able to execute arbitrary code on an affected system. The attacker-supplied code would be executed with kernel privileges.

III. Solution

Apply a patch

Microsoft has published patches for this issue in Microsoft Security Bulletin MS06-032. Users are encouraged to review this bulletin and apply the patches it refers to.

Workarounds

In addition to the patches, Microsoft has also published a number of workarounds for this issue in Microsoft Security Bulletin MS06-032. Users, particularly those who are unable to apply the patch, are encouraged to implement these workarounds.

Systems Affected

VendorStatusDate NotifiedDate Updated
Microsoft CorporationVulnerable13-Jun-2006

References


http://www.microsoft.com/technet/security/bulletin/ms06-032.mspx

Credit

Thanks to Microsoft Security for reporting this vulnerability. Microsoft, in turn, credits Andrey Minaev with reporting this vulnerability to them.

This document was written by Chad R Dougherty.

Other Information

Date Public:2006-06-13
Date First Published:2006-06-13
Date Last Updated:2006-06-13
CERT Advisory: 
CVE-ID(s):CVE-2006-2379
NVD-ID(s):CVE-2006-2379
US-CERT Technical Alerts: 
Metric:38.27
Document Revision:5

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