Microsoft IIS 5.0/5.06/5.1/6.0 ASP input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.1$5k-$25k0.00

Summaryinfo

A vulnerability classified as problematic was found in Microsoft IIS 5.0/5.06/5.1/6.0. This issue affects some unknown processing of the component ASP Handler. The manipulation results in input validation. This vulnerability is cataloged as CVE-2009-4444. There is no exploit available.

Detailsinfo

A vulnerability was found in Microsoft IIS 5.0/5.06/5.1/6.0 (Web Server). It has been classified as problematic. Affected is an unknown function of the component ASP Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and integrity. CVE summarizes:

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.

The issue has been introduced in 02/17/2000. The weakness was shared 12/24/2009 by Soroush Dalili as MSRC/ARC (Website). The advisory is available at blogs.technet.com. This vulnerability is traded as CVE-2009-4444 since 12/29/2009. It is possible to launch the attack remotely. The successful exploitation requires a authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 02/19/2017).

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3598 days. During that time the estimated underground price was around $25k-$100k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9395.

The vulnerability is also documented in the databases at SecurityFocus (BID 37460†), OSVDB (61432†), Secunia (SA37831†), SecurityTracker (ID 1023387†) and Vulnerability Center (SBV-24511†). The entries VDB-2324, VDB-2610, VDB-2788 and VDB-4121 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.4
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Suricata ID: 2010592
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
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Fortigate IPS: 🔍

Timelineinfo

02/17/2000 🔍
12/23/2009 +3597 days 🔍
12/23/2009 +0 days 🔍
12/24/2009 +1 days 🔍
12/24/2009 +0 days 🔍
12/24/2009 +0 days 🔍
12/29/2009 +5 days 🔍
12/29/2009 +0 days 🔍
01/03/2010 +5 days 🔍
01/04/2010 +0 days 🔍
01/05/2010 +1 days 🔍
02/19/2017 +2602 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MSRC/ARC
Researcher: Soroush Dalili
Status: Confirmed

CVE: CVE-2009-4444 (🔍)
GCVE (CVE): GCVE-0-2009-4444
GCVE (VulDB): GCVE-100-4074
SecurityFocus: 37460 - RETIRED: Microsoft IIS Malformed Local Filename Security Bypass Vulnerability
Secunia: 37831 - Microsoft IIS ASP Code Execution Security Bypass, Less Critical
OSVDB: 61432 - Microsoft IIS Colon Safe Extension NTFS ADS Filename Syntax Arbitrary Remote File Creation
SecurityTracker: 1023387 - Microsoft Internet Information Services (IIS) Filename Extension Parsing Configuration Error May Let Users Bypass Security Controls
Vulnerability Center: 24511 - Microsoft IIS 6.0 Security Bypass Vulnerability via a Malformed Filename Containing Semicolons, High
Vupen: ADV-2009-3634

See also: 🔍

Entryinfo

Created: 01/04/2010 11:22
Updated: 02/19/2017 09:43
Changes: 01/04/2010 11:22 (78), 02/19/2017 09:43 (11)
Complete: 🔍
Cache ID: 216:69F:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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