CVE-2009-4444 - Vulnerability Details - OpenCVE

Description

Microsoft Internet Information Services (IIS) 5.x and 6.x uses only the portion of a filename before a ; (semicolon) character to determine the file extension, which allows remote attackers to bypass intended extension restrictions of third-party upload applications via a filename with a (1) .asp, (2) .cer, or (3) .asa first extension, followed by a semicolon and a safe extension, as demonstrated by the use of asp.dll to handle a .asp;.jpg file.

Published: 2009-12-29

Score: 6.0 Medium

EPSS: 58.6% High

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:microsoft:internet_information_services:5.0:::::::*
	cpe:2.3:a:microsoft:internet_information_services:6.0:::::::*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.58584.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://blogs.technet.com/msrc/archive/2009/12/27/new-reports-of-a-vulnerability-in-iis.aspx
http://secunia.com/advisories/37831
http://securitytracker.com/id?1023387
http://soroush.secproject.com/downloadable/iis-semicolon-report.pdf
http://www.securityfocus.com/bid/37460
http://www.vupen.com/english/advisories/2009/3634

History

No history.

Subscriptions

Microsoft Internet Information Services

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2009-12-29T19:00:00.000Z

Updated: 2024-09-16T18:12:47.226Z

Reserved: 2009-12-29T00:00:00.000Z

Link: CVE-2009-4444

Vulnrichment

No data.

NVD

Status : Modified

Published: 2009-12-29T21:00:24.327

Modified: 2026-04-23T00:35:47.467

Link: CVE-2009-4444

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

NVD-CWE-noinfo

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