Microsoft Web Proxy Auto-Discovery Feature Security Issue - Secunia Advisories - Vulnerability Information

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Microsoft Web Proxy Auto-Discovery Feature Security Issue

Secunia Advisory:

SA27901

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Release Date:

2007-12-04

Popularity:

18,463 views

Critical:

Less critical

Impact:

Security Bypass
Exposure of sensitive information

Where:

From remote

Solution Status:

Vendor Workaround

OS:

Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Professional
Microsoft Windows 2000 Server
Microsoft Windows Server 2003 Datacenter Edition
Microsoft Windows Server 2003 Enterprise Edition
Microsoft Windows Server 2003 Standard Edition
Microsoft Windows Server 2003 Web Edition
Microsoft Windows Vista
Microsoft Windows XP Home Edition
Microsoft Windows XP Professional

Software:

Microsoft Internet Explorer 6.x
Microsoft Internet Explorer 7.x

Secunia CVSS-2 Score:

Available in Secunia business solutions

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Advisory Content (Page 1 of 3)

[ 1 ] [ 2 ] [ 3 ]

Secunia integrated with Microsoft WSUS

Description:
A security issue has been reported in Microsoft's Web Proxy Auto-Discovery (WPAD) feature, which can be exploited by malicious people to conduct man-in-the-middle (MITM) attacks.

The problem is that the WPAD feature resolves "wpad" hostnames up to the second-level domain, which is potentially untrusted. This can be exploited to conduct man-in-the-middle attacks against third-level or deeper domains.

Successful exploitation requires e.g. that the system has a primary DNS suffix configured (please see the vendor's advisory for details and other mitigating factors).

Change Page:
[ 1 ] [ 2 ] [ 3 ]

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