Auth bypass in Microsoft Internet Information Services
CVE-2009-1122
The WebDAV extension in Microsoft Internet Information Services (IIS) 5.0 on Windows 2000 SP4 does not properly decode URLs, which allows remote attackers to bypass authentication, and possibly read or create files, via a crafted HTTP request, aka "IIS 5.0 WebDAV Authentication Bypass Vulnerability," a different vulnerability than CVE-2009-1535.
Vulnerability class: Broken Authentication
EPSS: 0.984 (99.9th percentile) — read the EPSS interpretation.
Affected products
- Microsoft Internet_information_services — versions 5.0
- Microsoft Windows_2000
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (signature, x_refsource_OVAL, Third Party Advisory, vdb-entry)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- secure@microsoft.com (x_refsource_MS, vendor-advisory, Patch, Vendor Advisory)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secure@microsoft.com (US Government Resource, Third Party Advisory, x_refsource_CERT, third-party-advisory)
- secure@microsoft.com (Third Party Advisory, vdb-entry, x_refsource_VUPEN)
- secure@microsoft.com (mailing-list, Third Party Advisory, x_refsource_VIM)
Frequently asked questions
- What is CVE-2009-1122?
- CVE-2009-1122 is a vulnerability in Microsoft Internet Information Services, classified under Improper Authentication. Published 2009-06-10.
- Is CVE-2009-1122 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.