CVE-2009-2521

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Summary

CVECVE-2009-2521
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-09-04 10:30:01 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionStack consumption vulnerability in the FTP Service in Microsoft Internet Information Services (IIS) 5.0 through 7.0 allows remote authenticated users to cause a denial of service (daemon crash) via a list (ls) -R command containing a wildcard that references a subdirectory, followed by a .. (dot dot), aka "IIS FTP Service DoS Vulnerability."

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

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

Problem Types: CWE-400 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft Internet Information Services All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
US-CERT Technical Cyber Security Alert TA09-286A -- Microsoft Updates for Multiple Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.us-cert.gov Third Party Advisory, US Government Resource
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org Third Party Advisory
Microsoft Security Bulletin MS09-053 - Important | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com Patch, Vendor Advisory
NEOHAPSIS - Peace of Mind Through Integrity and Insight af854a3a-2127-422b-91ae-364da2661108 archives.neohapsis.com Broken Link
Microsoft Security Advisory: Vulnerability in Internet Information Services FTP Service could allow for remote code execution af854a3a-2127-422b-91ae-364da2661108 support.microsoft.com
Microsoft Security Advisory: Vulnerability in Internet Information Services FTP Service could allow for remote code execution MITRE support.microsoft.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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