Vulnerability Monitor

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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.

Security Impact Summary

CVE-2009-1122 is a security vulnerability that . Impacting 2 products from microsoft, from microsoft organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2009-06-10T18:30:00.297

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-287

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	microsoft	internet_information_services	5.0	Yes
Operating System	microsoft	windows_2000	-	No

References

http://www.attrition.org/pipermail/vim/2009-June/002192.html Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/35232 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id?1022358 Third Party Advisory, VDB Entry ([email protected])
http://www.us-cert.gov/cas/techalerts/TA09-160A.html Third Party Advisory, US Government Resource ([email protected])
http://www.vupen.com/english/advisories/2009/1539 Third Party Advisory ([email protected])
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020 Patch, Vendor Advisory ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5861 Third Party Advisory ([email protected])
http://www.attrition.org/pipermail/vim/2009-June/002192.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/35232 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1022358 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.us-cert.gov/cas/techalerts/TA09-160A.html Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2009/1539 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5861 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.