CVE-2009-2521: Medium severity microsoft internet information services (iis) vulnerability
Stack 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."
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2009-2521?
CVE-2009-2521 is classified as a denial of service vulnerability.
How do I fix CVE-2009-2521?
To fix CVE-2009-2521, ensure that your Microsoft Internet Information Services (IIS) is updated to a version that has patched this vulnerability.
Who is affected by CVE-2009-2521?
CVE-2009-2521 affects remote authenticated users of Microsoft Internet Information Services versions 5.0 through 7.0.
What kind of attacks can exploit CVE-2009-2521?
CVE-2009-2521 can be exploited through specially crafted FTP list commands that cause stack consumption and lead to a service crash.
When was CVE-2009-2521 reported?
CVE-2009-2521 was reported in September 2009.