Microsoft .NET Framework up to 4.5.1 HTTP POST input validation

CVSS Meta Temp Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft .NET Framework up to 4.5.1. It has been rated as problematic. The affected element is an unknown function of the component HTTP POST Handler. This manipulation causes input validation. This vulnerability is handled as CVE-2014-0253. The attack can be initiated remotely. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability has been found in Microsoft .NET Framework up to 4.5.1 (Programming Language Software) and classified as problematic. Affected by this vulnerability is an unknown function of the component HTTP POST Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote attackers to cause a denial of service (ASP.NET daemon hang) via crafted HTTP requests that trigger persistent resource consumption for a (1) stale or (2) closed connection, as exploited in the wild in February 2014, aka "POST Request DoS Vulnerability."

The weakness was released 02/11/2014 with Microsoft as MS14-009 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. This vulnerability is known as CVE-2014-0253 since 12/03/2013. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 72432 (MS14-009: Vulnerabilities in .NET Framework Could Allow Privilege Escalation (2916607)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90943 (Microsoft .NET Framework Elevation of Privileges and Denial of Service Vulnerabilities (MS14-009)).

Applying the patch MS14-009 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (89972), Tenable (72432), SecurityFocus (BID 65415†), OSVDB (103162†) and Vulnerability Center (SBV-43234†). Entries connected to this vulnerability are available at VDB-12265 and VDB-12266. Be aware that VulDB is the high quality source for vulnerability data.

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 72432
Nessus Name: MS14-009: Vulnerabilities in .NET Framework Could Allow Privilege Escalation (2916607)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS14-009
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

12/03/2013 🔍
02/11/2014 +70 days 🔍
02/11/2014 +0 days 🔍
02/11/2014 +0 days 🔍
02/11/2014 +0 days 🔍
02/11/2014 +0 days 🔍
02/12/2014 +1 days 🔍
02/12/2014 +0 days 🔍
02/13/2014 +1 days 🔍
01/08/2025 +3982 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS14-009
Organization: Microsoft
Status: Confirmed

CVE: CVE-2014-0253 (🔍)
GCVE (CVE): GCVE-0-2014-0253
GCVE (VulDB): GCVE-100-12271

OVAL: 🔍
IAVM: 🔍

X-Force: 89972 - Microsoft .NET Framework POST request denial of service, Medium Risk
SecurityFocus: 65415 - Microsoft .NET Framework CVE-2014-0253 Remote Denial of Service Vulnerability
OSVDB: 103162
SecurityTracker: 1029745
Vulnerability Center: 43234 - [MS14-009] Microsoft .NET Framework Remote DoS Vulnerability in ASP.NET, Medium

See also: 🔍

Entryinfo

Created: 02/13/2014 09:15
Updated: 01/08/2025 04:39
Changes: 02/13/2014 09:15 (75), 04/05/2017 16:07 (7), 06/09/2021 14:19 (3), 06/09/2021 14:20 (1), 01/08/2025 04:39 (15)
Complete: 🔍
Cache ID: 216:495:103

Be aware that VulDB is the high quality source for vulnerability data.

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