Microsoft .NET Framework 1.1 SP1/2.0 SP2/3.5 SP1/3.5.1/4.0 Forms Authentication Ticket Caching access control

CVSS Meta Temp Score
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CTI Interest Score
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8.5$0-$5k0.00

A vulnerability classified as critical has been found in Microsoft .NET Framework 1.1 SP1/2.0 SP2/3.5 SP1/3.5.1/4.0 (Programming Language Software). This affects an unknown functionality of the component Forms Authentication Ticket Caching. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Forms Authentication feature in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0, when sliding expiry is enabled, does not properly handle cached content, which allows remote attackers to obtain access to arbitrary user accounts via a crafted URL, aka "ASP.NET Forms Authentication Ticket Caching Vulnerability."

The weakness was shared 12/29/2011 by Alexander Klink with Microsoft as MS11-100 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability is uniquely identified as CVE-2011-3417 since 09/09/2011. 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. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 57414 (MS11-100: Vulnerabilities in .NET Framework Could Allow Elevation of Privilege (2638420)), 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 90764 (Microsoft ASP.NET Denial of Service Vulnerability (KB2659883 and MS11-100)).

Applying the patch MS11-100 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 (72026) and Tenable (57414).

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.5

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Unproven

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Current Price Estimation: 🔍

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Nessus ID: 57414
Nessus Name: MS11-100: Vulnerabilities in .NET Framework Could Allow Elevation of Privilege (2638420)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902806
OpenVAS Name: Vulnerabilities in .NET Framework Could Allow Elevation of Privilege (2638420)
OpenVAS File: 🔍
OpenVAS Family: 🔍

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Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
Status: 🔍

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Patch: MS11-100

Timelineinfo

09/09/2011 🔍
12/29/2011 +111 days 🔍
12/29/2011 +0 days 🔍
12/29/2011 +0 days 🔍
12/29/2011 +0 days 🔍
12/29/2011 +0 days 🔍
12/30/2011 +1 days 🔍
01/01/2012 +1 days 🔍
01/21/2012 +20 days 🔍
03/20/2021 +3346 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-100
Researcher: Alexander Klink
Organization: Microsoft
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2011-3417 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 72026
Vulnerability Center: 34157 - [MS11-100] Microsoft .NET Framework ASP.NET Forms Authentication Ticket Caching Vulnerability, Critical
SecurityFocus: 51203 - Microsoft .NET Framework ASP.NET Forms CVE-2011-3417 Security Bypass Vulnerability
Secunia: 47323 - Microsoft .NET Framework Multiple Vulnerabilities, Moderately Critical
OSVDB: 78056 - Microsoft .NET Framework Forms Authentication Sliding Expiry Cached Content Parsing Remote Code Execution

Entryinfo

Created: 01/21/2012 01:00
Updated: 03/20/2021 11:03
Changes: 01/21/2012 01:00 (53), 04/05/2017 15:07 (30), 03/20/2021 11:00 (8), 03/20/2021 11:03 (1)
Complete: 🔍
Cache ID: 18:FB2:103

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