CVE-2009-1535
The WebDAV extension in Microsoft Internet Information Services (IIS) 5.1 and 6.0 allows remote attackers to bypass URI-based protection mechanisms, and...
- Published
- Jun 10, 2009
- Updated
- Aug 7, 2024
- Assigning CNA
- microsoft
- Evidence observed
- May 15, 2009
Primary CVSS
nvd · CVSS 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:PHigh · next 30 days
- Percentile
- 99.9%
- Model date
- Oct 13, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
The WebDAV extension in Microsoft Internet Information Services (IIS) 5.1 and 6.0 allows remote attackers to bypass URI-based protection mechanisms, and list folders or read, create, or modify files, via a %c0%af (Unicode / character) at an arbitrary position in the URI, as demonstrated by inserting %c0%af into a "/protected/" initial pathname component to bypass the password protection on the protected\ folder, aka "IIS 5.1 and 6.0 WebDAV Authentication Bypass Vulnerability," a different vulnerability than CVE-2009-1122.
Sources
modules/auxiliary/scanner/http/dir_webdav_unicode_bypass.rb
Metasploit Framework modulesDeclared conditions
- verification: check_not_declared($.auxiliary_scanner/http/dir_webdav_unicode_bypass.check)
modules/auxiliary/scanner/http/ms09_020_webdav_unicode_bypass.rb
Metasploit Framework modulesDeclared conditions
- verification: check_not_declared($.auxiliary_scanner/http/ms09_020_webdav_unicode_bypass.check)
Responsible use
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