Microsoft .NET Framework 2.0 SP2/3.5.1/4 Socket Restriction information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Microsoft .NET Framework 2.0 SP2/3.5.1/4. This affects an unknown part of the component Socket Restriction. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2011-1978. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft .NET Framework 2.0 SP2/3.5.1/4 (Programming Language Software). It has been rated as critical. This issue affects some unknown functionality of the component Socket Restriction. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, and integrity. The summary by CVE is:

Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka "Socket Restriction Bypass Vulnerability."

The weakness was released 08/09/2011 by Michael J. Liu as MS11-069 as confirmed bulletin (Technet). It is possible to read the advisory at microsoft.com. The identification of this vulnerability is CVE-2011-1978 since 05/09/2011. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 55799 (MS11-069: Vulnerability in .NET Framework Could Allow Information Disclosure (2567951)), 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 90729 (Microsoft .NET Framework Information Disclosure Vulnerability (MS11-069)).

Upgrading eliminates this vulnerability. Applying the patch MS11-069 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (68829), Tenable (55799), SecurityFocus (BID 48991†), Secunia (SA45517†) and Vulnerability Center (SBV-32639†). 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: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍

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Nessus ID: 55799
Nessus Name: MS11-069: Vulnerability in .NET Framework Could Allow Information Disclosure (2567951)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902551
OpenVAS Name: Microsoft .NET Framework Information Disclosure Vulnerability (2567951)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: MS11-069

Timelineinfo

05/09/2011 🔍
08/09/2011 +92 days 🔍
08/09/2011 +0 days 🔍
08/09/2011 +0 days 🔍
08/09/2011 +0 days 🔍
08/09/2011 +0 days 🔍
08/10/2011 +1 days 🔍
08/10/2011 +0 days 🔍
08/19/2011 +9 days 🔍
01/12/2025 +4895 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-069
Researcher: Michael J. Liu
Status: Confirmed

CVE: CVE-2011-1978 (🔍)
GCVE (CVE): GCVE-0-2011-1978
GCVE (VulDB): GCVE-100-4391

OVAL: 🔍

X-Force: 68829
SecurityFocus: 48991 - Microsoft .NET Framework 'System.Net.Sockets' Namespace Security Bypass Vulnerability
Secunia: 45517 - Microsoft .NET Framework Socket Restriction Bypass Vulnerability, Moderately Critical
Vulnerability Center: 32639 - [MS11-069] Microsoft .NET Framework System.Net.Sockets Namespace Remote Information Disclosure, Medium

Entryinfo

Created: 08/19/2011 02:00
Updated: 01/12/2025 22:56
Changes: 08/19/2011 02:00 (78), 04/05/2017 15:07 (8), 03/19/2021 13:19 (3), 01/12/2025 22:56 (16)
Complete: 🔍
Cache ID: 216:DB0:103

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