Microsoft .NET Framework up to 4.5 Parameter Validator Function input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft .NET Framework up to 4.5. It has been rated as critical. This impacts an unknown function of the component Parameter Validator. This manipulation of the argument Function causes input validation. This vulnerability is tracked as CVE-2012-0163. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft .NET Framework up to 4.5 (Programming Language Software). It has been declared as critical. Affected by this vulnerability is an unknown function of the component Parameter Validator. The manipulation of the argument Function 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, and integrity. The summary by CVE is:

Microsoft .NET Framework 1.0 SP3, 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, and 4.5 does not properly validate function parameters, which allows remote attackers to execute arbitrary code via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka ".NET Framework Parameter Validation Vulnerability."

The weakness was disclosed 04/10/2012 by Vitaliy Toropov with VeriSign iDefense Labs as MS12-025 as confirmed knowledge base article (Website). It is possible to read the advisory at technet.microsoft.com. The public release has been coordinated in cooperation with Microsoft. This vulnerability is known as CVE-2012-0163 since 12/13/2011. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

A public exploit has been developed by Akita Software Security and been published 2 weeks after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 58657 (MS12-025: Vulnerability in .NET Framework Could Allow Remote Code Execution (2671605)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90757 (Microsoft .NET Framework Remote Code Execution Vulnerability (MS12-025)).

Applying the patch MS12-025 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. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12948.

The vulnerability is also documented in the databases at X-Force (74377), Exploit-DB (18777), Tenable (58657), SecurityFocus (BID 52921†) and OSVDB (81133†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 8.2

VulDB Base Score: 9.1
VulDB Temp Score: 8.2
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: 🔍
Access: Public
Status: Proof-of-Concept
Author: Akita Software Security
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 58657
Nessus Name: MS12-025: Vulnerability in .NET Framework Could Allow Remote Code Execution (2671605)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902828
OpenVAS Name: Microsoft .NET Framework Remote Code Execution Vulnerability (2671605)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: MS12-025
TippingPoint: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

12/13/2011 🔍
04/10/2012 +119 days 🔍
04/10/2012 +0 days 🔍
04/10/2012 +0 days 🔍
04/10/2012 +0 days 🔍
04/10/2012 +0 days 🔍
04/10/2012 +0 days 🔍
04/11/2012 +1 days 🔍
04/11/2012 +0 days 🔍
04/11/2012 +0 days 🔍
04/23/2012 +12 days 🔍
04/24/2012 +1 days 🔍
01/05/2025 +4639 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS12-025
Researcher: Vitaliy Toropov
Organization: VeriSign iDefense Labs
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-0163 (🔍)
GCVE (CVE): GCVE-0-2012-0163
GCVE (VulDB): GCVE-100-5047

OVAL: 🔍

X-Force: 74377 - Microsoft .NET Framework parameter code execution, High Risk
SecurityFocus: 52921 - Microsoft .NET Framework Parameter Validation Remote Code Execution Vulnerability
Secunia: 48785 - Microsoft .NET Framework CRL Parameter Parsing Vulnerability, Highly Critical
OSVDB: 81133 - Microsoft .NET Framework CRL (Common Language Runtime) Function Parameter Parsing Remote Code Execution
SecurityTracker: 1026907 - Microsoft .NET Parameter Validation Flaw Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 34842 - [MS12-025] Microsoft .NET Framework Remote Code Execution via Various .NET Crafted Applications, Critical

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

Entryinfo

Created: 04/11/2012 14:23
Updated: 01/05/2025 12:14
Changes: 04/11/2012 14:23 (59), 04/05/2017 15:07 (39), 03/22/2021 16:45 (7), 03/22/2021 16:48 (1), 01/05/2025 12:14 (16)
Complete: 🔍
Cache ID: 216:017:103

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

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