CVE-2009-0550

Critical

Description

Windows HTTP Services (aka WinHTTP) in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008; and WinINet in Microsoft Internet Explorer 5.01 SP4, 6 SP1, 6 and 7 on Windows XP SP2 and SP3, 6 and 7 on Windows Server 2003 SP1 and SP2, 7 on Windows Vista Gold and SP1, and 7 on Windows Server 2008; allows remote web servers to capture and replay NTLM credentials, and execute arbitrary code, via vectors related to absence of a "credential-reflection protections" opt-in step, aka "Windows HTTP Services Credential Reflection Vulnerability" and "WinINet Credential Reflection Vulnerability."

SeverityCritical
CVSS9.3
Exploit probability—
ProductMicrosoft Windows
PublishedApr 15, 2009
First seenApr 15, 2009

How to fix

Affected products

ProductAffected versionsFixed in
microsoft windows_2000No range specified—
microsoft windows_server_2003No range specified—
microsoft windows_server_2008No range specified—
microsoft windows_vistaNo range specified, gold—
microsoft windows_xpNo range specified—
microsoft ie6.0—
microsoft internet_explorer5.01, 6, 7—

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