Vulnerability 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."
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Asp.Net | <= 1.1 |
Related Weaknesses (CWE)
References
- http://archives.neohapsis.com/archives/ntbugtraq/2004-q3/0221.htmlExploitVendor Advisory
- http://sourceforge.net/mailarchive/forum.php?thread_id=5671607&forum_id=24754Broken Link
- http://www.kb.cert.org/vuls/id/283646Third Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/11342Third Party AdvisoryVDB Entry
- http://www.us-cert.gov/cas/techalerts/TA05-039A.htmlThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-00
- https://exchange.xforce.ibmcloud.com/vulnerabilities/17644Third Party AdvisoryVDB Entry
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Third Party Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Third Party Advisory
- http://archives.neohapsis.com/archives/ntbugtraq/2004-q3/0221.htmlExploitVendor Advisory
- http://sourceforge.net/mailarchive/forum.php?thread_id=5671607&forum_id=24754Broken Link
- http://www.kb.cert.org/vuls/id/283646Third Party AdvisoryUS Government Resource
- http://www.securityfocus.com/bid/11342Third Party AdvisoryVDB Entry
- http://www.us-cert.gov/cas/techalerts/TA05-039A.htmlThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-00
FAQ
What is CVE-2004-0847?
CVE-2004-0847 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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)...
How severe is CVE-2004-0847?
CVE-2004-0847 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2004-0847?
Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Asp.Net.