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CVE-2009-2505

nvd nist
Published: Dec 9, 2009Modified: Apr 23, 2026

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10.0
Vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Exploitability: 10.0 / Impact: 10.0
Source: NVD

Description

The Internet Authentication Service (IAS) in Microsoft Windows Vista SP2 and Server 2008 SP2 does not properly validate MS-CHAP v2 Protected Extensible Authentication Protocol (PEAP) authentication requests, which allows remote attackers to execute arbitrary code via crafted structures in a malformed request, aka "Internet Authentication Service Memory Corruption Vulnerability."

Affected (4)

Microsoft
2 products
Windows Server 2008
Windows Vista
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Windows Server 2008
All versions
Windows Server 2008
Version sp2 x32
Windows Server 2008
Version sp2 x64
Windows Vista
All versions

Related CWEs

CWE-287
Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (8)

Source: secure@microsoft.com
Source: secure@microsoft.com
US Government Resource
Source: secure@microsoft.com
Source: secure@microsoft.com
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
US Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.