Executive Summary

Summary
Title Vulnerability in ASP.NET Could Allow Denial of Service
Informations
Name KB2659883 First vendor Publication 2011-12-28
Vendor Microsoft Last vendor Modification 2011-12-29
Severity (Vendor) N/A Revision 2.0

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

General Information

Executive Summary

Microsoft has completed the investigation into a public report of this vulnerability. We have issued MS11-100 to address this issue. For more information about this issue, including download links for an available security update, please review MS11-100. The vulnerability addressed is the Collisions in HashTable May Cause DoS Vulnerability - CVE-2011-3414.

Original Source

Url : http://www.microsoft.com/technet/security/advisory/2659883.mspx

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-399 Resource Management Errors

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:14588
 
Oval ID: oval:org.mitre.oval:def:14588
Title: Collisions in HashTable May Cause DoS Vulnerability
Description: The CaseInsensitiveHashProvider.getHashCode function in the HashTable implementation in the ASP.NET subsystem in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5 SP1, 3.5.1, and 4.0 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters, aka "Collisions in HashTable May Cause DoS Vulnerability."
Family: windows Class: vulnerability
Reference(s): CVE-2011-3414
Version: 11
Platform(s): Microsoft Windows XP
Microsoft Windows Server 2003
Microsoft Windows Vista
Microsoft Windows Server 2008
Microsoft Windows Server 2008 R2
Microsoft Windows 7
Product(s): Microsoft .NET Framework 1.1
Microsoft .NET Framework 2.0
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 4
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3
Os 1
Os 5
Os 2
Os 2

OpenVAS Exploits

Date Description
2011-12-30 Name : Vulnerabilities in .NET Framework Could Allow Elevation of Privilege (2638420)
File : nvt/secpod_ms11-100.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
78057 Microsoft .NET Framework ASP.NET Hash Collision Web Form Post Parsing Remote DoS

Information Assurance Vulnerability Management (IAVM)

Date Description
2012-01-05 IAVM : 2012-A-0001 - Multiple Vulnerabilities in Microsoft .NET Framework
Severity : Category I - VMSKEY : V0030927

Snort® IPS/IDS

Date Description
2014-01-10 generic web server hashing collision attack
RuleID : 20825 - Revision : 11 - Type : SERVER-WEBAPP
2014-01-10 generic web server hashing collision attack
RuleID : 20824 - Revision : 13 - Type : OS-WINDOWS
2014-01-10 generic web server hashing collision attack
RuleID : 20823 - Revision : 4 - Type : DOS

Nessus® Vulnerability Scanner

Date Description
2012-07-17 Name : The remote device has a denial of service vulnerability.
File : juniper_psn-2012-07-650.nasl - Type : ACT_GATHER_INFO
2011-12-29 Name : The version of ASP.NET Framework installed on the remote host is affected by ...
File : smb_nt_ms11-100.nasl - Type : ACT_GATHER_INFO

Alert History

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0
Date Informations
2014-01-19 21:29:40
  • Multiple Updates