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CVE-2009-1122

7.5 · HIGH

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 rea…

Published Jun 10, 2009microsoftCWE-287EPSS 98.45%

Overview

CVE-2009-1122 is a high-severity vulnerability affecting microsoft internet_information_services. It was published on June 10, 2009 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from microsoft. Update internet_information_services to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refwww.attrition.org/pipermail/vim/2009-June/002192.htmlRefwww.securityfocus.com/bid/35232Refwww.securitytracker.com/id?1022358Refwww.us-cert.gov/cas/techalerts/TA09-160A.htmlRefwww.vupen.com/english/advisories/2009/1539Refdocs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-020Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5861Refwww.attrition.org/pipermail/vim/2009-June/002192.htmlRefwww.securityfocus.com/bid/35232Refwww.securitytracker.com/id?1022358

How CyberStrike helps

Frequently asked questions

What is CVE-2009-1122?

CVE-2009-1122 is a high-severity vulnerability affecting microsoft internet_information_services. It was published on June 10, 2009 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2009-1122?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-1122?

Check the references section for vendor advisories and patches from microsoft. Update internet_information_services to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-1122?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-1122 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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