Path Traversal in Microsoft Asp.net
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."
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.757 (99.5th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.757 · newest: 0.757 · change: 0.000
Affected products
- Microsoft Asp.net — versions 1.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-004 (vendor-advisory)
- sourceforge.net/mailarchive/forum.php (Broken Link)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:4987 (signature, Third Party Advisory, vdb-entry)
- www.us-cert.gov/cas/techalerts/TA05-039A.html (US Government Resource, Third Party Advisory, third-party-advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/17644 (VDB Entry, Third Party Advisory, vdb-entry)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:3556 (signature, Third Party Advisory, vdb-entry)
- www.kb.cert.org/vuls/id/283646 (US Government Resource, Third Party Advisory, third-party-advisory)
- www.securityfocus.com/bid/11342 (VDB Entry, Third Party Advisory, vdb-entry)
- archives.neohapsis.com/archives/ntbugtraq/2004-q3/0221.html (Vendor Advisory, mailing-list, Exploit)
Frequently asked questions
- What is CVE-2004-0847?
- CVE-2004-0847 is a critical-severity vulnerability in Microsoft Asp.net, classified under Path Traversal. CVSS score: 9.8/10. Published 2004-11-03.
- How severe is CVE-2004-0847?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2004-0847 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.