CVE-2004-0847

The Microsoft .NET forms authentication capability for ASP.NET allows remote attackers to bypass authentication for .aspx files in restricted directories via a request containing a (1) "\" (backslash) or (2) "%5C" (encoded backslash), aka "Path Validation Vulnerability."

• CWE-22

• http://archives.neohapsis.com/archives/ntbugtraq/2004-q3/0221.htmlExploit, Vendor Advisory
• http://sourceforge.net/mailarchive/forum.php?thread_id=5671607&forum_id=24754Broken Link
• http://www.kb.cert.org/vuls/id/283646Third Party Advisory, US Government Resource
• http://www.securityfocus.com/bid/11342Third Party Advisory, VDB Entry
• http://www.us-cert.gov/cas/techalerts/TA05-039A.htmlThird Party Advisory, US Government Resource
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-004
• https://exchange.xforce.ibmcloud.com/vulnerabilities/17644Third Party Advisory, VDB Entry
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3556Third Party Advisory
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4987Third Party Advisory
• http://archives.neohapsis.com/archives/ntbugtraq/2004-q3/0221.htmlExploit, Vendor Advisory
• http://sourceforge.net/mailarchive/forum.php?thread_id=5671607&forum_id=24754Broken Link
• http://www.kb.cert.org/vuls/id/283646Third Party Advisory, US Government Resource
• http://www.securityfocus.com/bid/11342Third Party Advisory, VDB Entry
• http://www.us-cert.gov/cas/techalerts/TA05-039A.htmlThird Party Advisory, US Government Resource
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-004
• https://exchange.xforce.ibmcloud.com/vulnerabilities/17644Third Party Advisory, VDB Entry
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A3556Third Party Advisory
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4987Third Party Advisory

Published

Nov 3, 2004

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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