CRLF Injection Vulnerability in Microsoft Internet Information Services

CVE-2011-5279

Summary

A CRLF injection vulnerability exists in the CGI implementation of Microsoft Internet Information Services (IIS) 4.x and 5.x on Windows NT and Windows 2000. This flaw allows remote attackers to exploit HTTP headers by injecting newline characters, enabling them to modify arbitrary uppercase environment variables. Such manipulation can lead to further exploitation and unauthorized access, highlighting the importance of securing web applications against injection-based attacks.

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