CVE-2004-0847

CriticalCVSS 9.8/10Last modified Jun 16, 2026

Description

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."

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-22

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

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

Timeline

Published: Nov 3, 2004
Last modified: Jun 16, 2026
NVD status: Modified

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