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Critical severity · published Nov 3, 2004
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…
9.8
CVSS
75.7%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)75.7% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Asp.net · Microsoft
through 1.1; 1.1 · source: NVD
Affected product
AS
Asp.net
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2004-0847
CVE.org
https://www.cve.org/CVERecord?id=CVE-2004-0847
Exploit
http://archives.neohapsis.com/archives/ntbugtraq/2004-q3/0221.html
Broken Link
http://sourceforge.net/mailarchive/forum.php?thread_id=5671607&forum_id=24754
Third Party Advisory
http://www.kb.cert.org/vuls/id/283646
Third Party Advisory
http://www.securityfocus.com/bid/11342
Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA05-039A.html
docs.microsoft.com
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-004
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