Microsoft .NET Framework up to 4.5.1 input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft .NET Framework up to 4.5.1. Affected by this vulnerability is an unknown functionality. This manipulation causes input validation. This vulnerability is registered as CVE-2014-0257. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft .NET Framework up to 4.5.1 (Programming Language Software). It has been declared as critical. Affected by this vulnerability is an unknown functionality. 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 confidentiality, integrity, and availability. The summary by CVE is:

Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine whether it is safe to execute a method, which allows remote attackers to execute arbitrary code via (1) a crafted web site or (2) a crafted .NET Framework application that exposes a COM server endpoint, aka "Type Traversal Vulnerability."

The weakness was published 02/11/2014 by Metasploit with Microsoft as MS14-009 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. This vulnerability is known as CVE-2014-0257 since 12/03/2013. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed by Metasploit in Ruby and been published 5 months after the advisory. It is possible to download the exploit at securityfocus.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $5k-$25k. 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 (90788), Exploit-DB (33892), Tenable (72432), SecurityFocus (BID 65417†) and OSVDB (103163†). Additional details are provided at zdnet.com. Similar entries are available at VDB-12238, VDB-12239, VDB-12240 and VDB-12241. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Author: Metasploit
Programming Language: 🔍
Download: 🔍

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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: 🔍

MetaSploit ID: ms14_009_ie_dfsvc.rb
MetaSploit Name: MS13-097 Registry Symlink IE Sandbox Escape
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS14-009

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 🔍
02/11/2014 +0 days 🔍
02/12/2014 +1 days 🔍
02/12/2014 +0 days 🔍
06/27/2014 +135 days 🔍
06/27/2014 +0 days 🔍
08/03/2025 +4054 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS14-009
Researcher: Metasploit
Organization: Microsoft
Status: Confirmed

CVE: CVE-2014-0257 (🔍)
GCVE (CVE): GCVE-0-2014-0257
GCVE (VulDB): GCVE-100-12265

OVAL: 🔍
IAVM: 🔍

X-Force: 90788 - Microsoft .NET type traversal privilege escalation, High Risk
SecurityFocus: 65417 - Microsoft .NET Framework CVE-2014-0257 Remote Privilege Escalation Vulnerability
Secunia: 56793 - Microsoft .NET Framework Denial of Service and Type Traversal Vulnerabilities, Highly Critical
OSVDB: 103163
SecurityTracker: 1029745
Vulnerability Center: 43236 - [MS14-009] Microsoft .NET Framework Remote Code Execution Vulnerability via Type Traversal, Critical

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
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Entryinfo

Created: 02/12/2014 15:11
Updated: 08/03/2025 00:03
Changes: 02/12/2014 15:11 (85), 04/05/2017 16:07 (12), 06/09/2021 13:53 (2), 06/09/2021 13:59 (1), 08/03/2025 00:03 (14)
Complete: 🔍
Cache ID: 216:0B8:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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