Microsoft .NET Framework 2.0 SP2/3.5.1 Trusted Code Function information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability was found in Microsoft .NET Framework 2.0 SP2/3.5.1 (Programming Language Software). It has been classified as problematic. This affects an unknown code of the component Trusted Code Function Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Microsoft .NET Framework 2.0 SP2 and 3.5.1 does not properly consider trust levels during construction of output data, which allows remote attackers to obtain sensitive information via (1) a crafted XAML browser application (aka XBAP) or (2) a crafted .NET Framework application, aka "Code Access Security Info Disclosure Vulnerability."

The weakness was disclosed 11/13/2012 by James Forshaw with Context Information Security as MS12-074 as confirmed bulletin (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 uniquely identified as CVE-2012-1896 since 03/22/2012. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a private exploit is available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 62906 (MS12-074: Vulnerabilities in .NET Framework Could Allow Remote Code Execution (2745030)), 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 90841 (Microsoft .NET Framework Remote Code Execution Vulnerability (MS12-074)).

Applying the patch KB2745030 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 Tenable (62906), SecurityFocus (BID 56456†), OSVDB (87264†), Secunia (SA51236†) and SecurityTracker (ID 1027753†). The entries VDB-6926, VDB-6928, VDB-6929 and VDB-6930 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

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Price Prediction: 🔍
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Nessus ID: 62906
Nessus Name: MS12-074: Vulnerabilities in .NET Framework Could Allow Remote Code Execution (2745030)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902934
OpenVAS Name: Microsoft .NET Framework Remote Code Execution Vulnerability (2745030)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: KB2745030
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Timelineinfo

03/22/2012 🔍
11/08/2012 +231 days 🔍
11/13/2012 +4 days 🔍
11/13/2012 +0 days 🔍
11/13/2012 +0 days 🔍
11/13/2012 +0 days 🔍
11/13/2012 +0 days 🔍
11/13/2012 +0 days 🔍
11/14/2012 +1 days 🔍
11/15/2012 +1 days 🔍
04/19/2021 +3077 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS12-074
Researcher: James Forshaw
Organization: Context Information Security
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2012-1896 (🔍)
OVAL: 🔍
IAVM: 🔍

SecurityFocus: 56456
Secunia: 51236 - Microsoft .NET Framework Multiple Vulnerabilities, Highly Critical
OSVDB: 87264
SecurityTracker: 1027753 - Microsoft .NET Flaws Let Remote Users Execute Arbitrary Code, Obtain Potentially Sensitive Information, and Bypass Security Restrictions
Vulnerability Center: 37237 - [MS12-074] Microsoft .NET Framework Allows Remote Information Disclosure Vulnerability, Medium

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

Entryinfo

Created: 11/15/2012 10:20 AM
Updated: 04/19/2021 10:34 AM
Changes: 11/15/2012 10:20 AM (83), 04/05/2017 04:16 PM (10), 04/19/2021 10:31 AM (3), 04/19/2021 10:34 AM (1)
Complete: 🔍
Committer:
Cache ID: 18:4DB:40

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