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CVE-2009-1122 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020	CVE	PatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5861	CVE	Third Party Advisory
http://www.attrition.org/pipermail/vim/2009-June/002192.html	CVE	Third Party Advisory
http://www.securityfocus.com/bid/35232	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1022358	CVE	Third Party AdvisoryVDB Entry
http://www.us-cert.gov/cas/techalerts/TA09-160A.html	CVE	Third Party AdvisoryUS Government Resource
http://www.vupen.com/english/advisories/2009/1539	CVE	Third Party Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020	[email protected]	PatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5861	[email protected]	Third Party Advisory
http://www.attrition.org/pipermail/vim/2009-June/002192.html	[email protected]	Third Party Advisory
http://www.securityfocus.com/bid/35232	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1022358	[email protected]	Third Party AdvisoryVDB Entry
http://www.us-cert.gov/cas/techalerts/TA09-160A.html	[email protected]	Third Party AdvisoryUS Government Resource
http://www.vupen.com/english/advisories/2009/1539	[email protected]	Third Party Advisory

see all 14 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	[email protected]

Affected Products

Product	Versions
microsoft internet information services	5.0
CPE cpe:2.3:a:microsoft:internet_information_services:5.0:::::::* Remediation No remediation found in references.
microsoft windows 2000	All versions
CPE cpe:2.3:o:microsoft:windows_2000:-:sp4:::::: Remediation No remediation found in references.

Change History

10 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 23, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 23, 2020	Reanalysis	[email protected]
Nov 23, 2020	Modified Analysis	[email protected]
Nov 23, 2020	CPE Deprecation Remap	[email protected]
Oct 12, 2018	CVE Modified	[email protected]
Sep 29, 2017	CVE Modified	[email protected]
Jun 11, 2009	Initial Analysis	[email protected]