Vulnerability  oval:org.mitre.oval:def:14588
Collisions in HashTable May Cause DoS Vulnerability  

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."
Create Date: 2011-12-29 Last Update Date: 2012-06-04

Affected Platforms/Products

Affected Products (CPE + CVE references)
Platforms: windows (from OVAL definitions) Products: windows
  • Microsoft Windows 7
  • Microsoft Windows Server 2008 R2
  • Microsoft Windows Vista
  • Microsoft Windows Server 2008
  • Microsoft Windows XP
  • Microsoft Windows Server 2003
  • Microsoft .NET Framework 4
  • Microsoft .NET Framework 3.5.1
  • Microsoft .NET Framework 2.0
  • Microsoft .NET Framework 1.1

References

Criteria

The system is vulnerable
IF : Any one of the following are true
IF : All of the following are true .NET Framework 4 KB2656351
Prerequisites (Extended Definitions)
Microsoft .NET Framework 4.0 is installed oval:org.mitre.oval:def:6749
IF : Any one of the following are true affected Operating System
Prerequisites (Extended Definitions)
Microsoft Windows Server 2008 R2 x64 Service Pack 1 is installed oval:org.mitre.oval:def:12567
Microsoft Windows Server 2008 R2 Itanium-Based Edition Service Pack 1 is installed oval:org.mitre.oval:def:12583
Microsoft Windows 7 (32-bit) is installed oval:org.mitre.oval:def:6165
Microsoft Windows 7 x64 Edition is installed oval:org.mitre.oval:def:5950
Microsoft Windows Server 2008 R2 x64 Edition is installed oval:org.mitre.oval:def:6438
Microsoft Windows Server 2008 R2 Itanium-Based Edition is installed oval:org.mitre.oval:def:5954
Microsoft Windows 7 (32-bit) Service Pack 1 is installed oval:org.mitre.oval:def:12292
Microsoft Windows 7 x64 Service Pack 1 is installed oval:org.mitre.oval:def:12627
Microsoft Windows Server 2008 (ia-64) is installed oval:org.mitre.oval:def:5667
Microsoft Windows Server 2008 Itanium-Based Edition Service Pack 2 is installed oval:org.mitre.oval:def:6150
Microsoft Windows Server 2008 x64 Edition Service Pack 2 is installed oval:org.mitre.oval:def:6216
Microsoft Windows Server 2008 (64-bit) is installed oval:org.mitre.oval:def:5356
Microsoft Windows Server 2008 (32-bit) Service Pack 2 is installed oval:org.mitre.oval:def:5653
Microsoft Windows Server 2008 (32-bit) is installed oval:org.mitre.oval:def:4870
Microsoft Windows Vista x64 Edition Service Pack 2 is installed oval:org.mitre.oval:def:5594
Microsoft Windows Vista x64 Edition Service Pack 1 is installed oval:org.mitre.oval:def:5254
Microsoft Windows Vista (32-bit) Service Pack 2 is installed oval:org.mitre.oval:def:6124
Microsoft Windows Vista (32-bit) Service Pack 1 is installed oval:org.mitre.oval:def:4873
Microsoft Windows Server 2003 (ia64) SP2 is installed oval:org.mitre.oval:def:1442
Microsoft Windows Server 2003 SP2 (x64) is installed oval:org.mitre.oval:def:2161
Microsoft Windows Server 2003 SP2 (x86) is installed oval:org.mitre.oval:def:1935
Microsoft Windows XP (x86) SP3 is installed oval:org.mitre.oval:def:5631
Microsoft Windows XP x64 Edition SP2 is installed oval:org.mitre.oval:def:4193
IF : Any one of the following are true GDR or LDR Service branch
IF : the version of System.Web.dll is less than 4.0.30319.272
Windows : File Test :  the version of System.Web.dll is less than 4.0.30319.272 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v4.0.30319\system.web.dll
version less than 4.0.30319.272 (datatype=version)
windows : file_state 
IF : All of the following are true LDR
IF : the version of System.Web.dll is less than 4.0.30319.547
Windows : File Test :  the version of System.Web.dll is less than 4.0.30319.547 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v4.0.30319\system.web.dll
version less than 4.0.30319.547 (datatype=version)
windows : file_state 
IF : the version of System.Web.dll is greater than or equal to 4.0.30319.300
Windows : File Test :  the version of System.Web.dll is greater than or equal to 4.0.30319.300 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v4.0.30319\system.web.dll
version greater than or equal 4.0.30319.300 (datatype=version)
windows : file_state 
IF : All of the following are true .NET Framework 3.5.1 KB2656356
Prerequisites (Extended Definitions)
Microsoft .NET Framework 3.5 SP1 is installed oval:org.mitre.oval:def:12542
IF : Any one of the following are true GDR or LDR Service branch
IF : the version of System.web.dll is less than 2.0.50727.5456
Windows : File Test :  the version of System.web.dll is less than 2.0.50727.5456 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version less than 2.0.50727.5456 (datatype=version)
windows : file_state 
IF : All of the following are true LDR
IF : the version of System.Web.dll is less than 2.0.50727.5710
Windows : File Test :  the version of System.Web.dll is less than 2.0.50727.5710 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version less than 2.0.50727.5710 (datatype=version)
windows : file_state 
IF : the version of System.Web.dll is greater than or equal to 2.0.50727.5600
Windows : File Test :  the version of System.Web.dll is greater than or equal to 2.0.50727.5600 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version greater than or equal 2.0.50727.5600 (datatype=version)
windows : file_state 
IF : Any one of the following are true affected Operating System
Prerequisites (Extended Definitions)
Microsoft Windows Server 2008 R2 Itanium-Based Edition Service Pack 1 is installed oval:org.mitre.oval:def:12583
Microsoft Windows Server 2008 R2 x64 Service Pack 1 is installed oval:org.mitre.oval:def:12567
Microsoft Windows 7 x64 Service Pack 1 is installed oval:org.mitre.oval:def:12627
Microsoft Windows 7 (32-bit) Service Pack 1 is installed oval:org.mitre.oval:def:12292
IF : All of the following are true .NET Framework 3.5.1 KB2656355
Prerequisites (Extended Definitions)
Microsoft .NET Framework 3.5 SP1 is installed oval:org.mitre.oval:def:12542
IF : Any one of the following are true GDR or LDR Service branch
IF : the version of System.web.dll is less than 2.0.50727.4971
Windows : File Test :  the version of System.web.dll is less than 2.0.50727.4971 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version less than 2.0.50727.4971 (datatype=version)
windows : file_state 
IF : All of the following are true LDR
IF : the version of System.Web.dll is greater than or equal to 2.0.50727.5600
Windows : File Test :  the version of System.Web.dll is greater than or equal to 2.0.50727.5600 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version greater than or equal 2.0.50727.5600 (datatype=version)
windows : file_state 
IF : the version of System.Web.dll is less than 2.0.50727.5710
Windows : File Test :  the version of System.Web.dll is less than 2.0.50727.5710 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version less than 2.0.50727.5710 (datatype=version)
windows : file_state 
IF : Any one of the following are true affected Operating System
Prerequisites (Extended Definitions)
Microsoft Windows Server 2008 R2 x64 Edition is installed oval:org.mitre.oval:def:6438
Microsoft Windows Server 2008 R2 Itanium-Based Edition is installed oval:org.mitre.oval:def:5954
Microsoft Windows 7 (32-bit) is installed oval:org.mitre.oval:def:6165
Microsoft Windows 7 x64 Edition is installed oval:org.mitre.oval:def:5950
IF : All of the following are true .NET Framework 3.5 SP1 KB2657424
Prerequisites (Extended Definitions)
Microsoft .NET Framework 3.5 SP1 is installed oval:org.mitre.oval:def:12542
IF : Any one of the following are true GDR or LDR Service branch
IF : the version of System.Web.Extensions.dll is less than 3.5.30729.3678
Windows : File Test :  the version of System.Web.Extensions.dll is less than 3.5.30729.3678 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion : ProgramFilesDir [behaviours=]}}]]\Reference Assemblies\Microsoft\Framework\v3.5\system.web.extensions.dll
version less than 3.5.30729.3678 (datatype=version)
windows : file_state 
IF : All of the following are true LDR
IF : the version of System.Web.Extensions.dll is greater than or equal to 3.5.30729.5600
Windows : File Test :  the version of System.Web.Extensions.dll is greater than or equal to 3.5.30729.5600 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion : ProgramFilesDir [behaviours=]}}]]\Reference Assemblies\Microsoft\Framework\v3.5\system.web.extensions.dll
version greater than or equal 3.5.30729.5600 (datatype=version)
windows : file_state 
IF : the version of System.Web.Extensions.dll is less than 3.5.30729.5769
Windows : File Test :  the version of System.Web.Extensions.dll is less than 3.5.30729.5769 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion : ProgramFilesDir [behaviours=]}}]]\Reference Assemblies\Microsoft\Framework\v3.5\system.web.extensions.dll
version less than 3.5.30729.5769 (datatype=version)
windows : file_state 
IF : Any one of the following are true affected Operating System
Prerequisites (Extended Definitions)
Microsoft Windows Server 2008 (32-bit) Service Pack 2 is installed oval:org.mitre.oval:def:5653
Microsoft Windows Server 2008 (64-bit) is installed oval:org.mitre.oval:def:5356
Microsoft Windows Server 2008 x64 Edition Service Pack 2 is installed oval:org.mitre.oval:def:6216
Microsoft Windows Server 2008 Itanium-Based Edition Service Pack 2 is installed oval:org.mitre.oval:def:6150
Microsoft Windows Server 2008 (ia-64) is installed oval:org.mitre.oval:def:5667
Microsoft Windows Vista x64 Edition Service Pack 1 is installed oval:org.mitre.oval:def:5254
Microsoft Windows Vista x64 Edition Service Pack 2 is installed oval:org.mitre.oval:def:5594
Microsoft Windows Server 2008 (32-bit) is installed oval:org.mitre.oval:def:4870
Microsoft Windows Vista (32-bit) Service Pack 2 is installed oval:org.mitre.oval:def:6124
Microsoft Windows Vista (32-bit) Service Pack 1 is installed oval:org.mitre.oval:def:4873
Microsoft Windows Server 2003 (ia64) SP2 is installed oval:org.mitre.oval:def:1442
Microsoft Windows Server 2003 SP2 (x64) is installed oval:org.mitre.oval:def:2161
Microsoft Windows Server 2003 SP2 (x86) is installed oval:org.mitre.oval:def:1935
Microsoft Windows XP (x86) SP3 is installed oval:org.mitre.oval:def:5631
Microsoft Windows XP x64 Edition SP2 is installed oval:org.mitre.oval:def:4193
IF : All of the following are true .NET Framework 2.0 SP2 KB2656362
Prerequisites (Extended Definitions)
Microsoft .NET Framework 2.0 Service Pack 2 is installed oval:org.mitre.oval:def:6158
IF : Any one of the following are true GDR or LDR Service branch
IF : the version of System.Web.dll is less than 2.0.50727.4223
Windows : File Test :  the version of System.Web.dll is less than 2.0.50727.4223 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version less than 2.0.50727.4223 (datatype=version)
windows : file_state 
IF : All of the following are true LDR
IF : the version of System.Web.dll is less than 2.0.50727.5710
Windows : File Test :  the version of System.Web.dll is less than 2.0.50727.5710 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version less than 2.0.50727.5710 (datatype=version)
windows : file_state 
IF : the version of System.Web.dll is greater than or equal to 2.0.50727.5600
Windows : File Test :  the version of System.Web.dll is greater than or equal to 2.0.50727.5600 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version greater than or equal 2.0.50727.5600 (datatype=version)
windows : file_state 
IF : Any one of the following are true affected Operating System
Prerequisites (Extended Definitions)
Microsoft Windows Server 2008 x64 Edition Service Pack 2 is installed oval:org.mitre.oval:def:6216
Microsoft Windows Server 2008 Itanium-Based Edition Service Pack 2 is installed oval:org.mitre.oval:def:6150
Microsoft Windows Server 2008 (32-bit) Service Pack 2 is installed oval:org.mitre.oval:def:5653
Microsoft Windows Vista x64 Edition Service Pack 2 is installed oval:org.mitre.oval:def:5594
Microsoft Windows Vista (32-bit) Service Pack 2 is installed oval:org.mitre.oval:def:6124
IF : All of the following are true .NET Framework 1.1 SP1 KB2656353
Prerequisites (Extended Definitions)
Microsoft .NET Framework 1.1 Service Pack 1 is Installed oval:org.mitre.oval:def:1834
IF : the version of Mscorlib.dll is less than 1.1.4322.2494
Windows : File Test :  the version of Mscorlib.dll is less than 1.1.4322.2494 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v1.1.4322\mscorlib.dll
version less than 1.1.4322.2494 (datatype=version)
windows : file_state 
IF : Any one of the following are true affected Operating System
Prerequisites (Extended Definitions)
Microsoft Windows Vista (32-bit) Service Pack 1 is installed oval:org.mitre.oval:def:4873
Microsoft Windows Vista (32-bit) Service Pack 2 is installed oval:org.mitre.oval:def:6124
Microsoft Windows Server 2008 Itanium-Based Edition Service Pack 2 is installed oval:org.mitre.oval:def:6150
Microsoft Windows Server 2008 (ia-64) is installed oval:org.mitre.oval:def:5667
Microsoft Windows Server 2008 x64 Edition Service Pack 2 is installed oval:org.mitre.oval:def:6216
Microsoft Windows Server 2008 (64-bit) is installed oval:org.mitre.oval:def:5356
Microsoft Windows Vista x64 Edition Service Pack 1 is installed oval:org.mitre.oval:def:5254
Microsoft Windows Vista x64 Edition Service Pack 2 is installed oval:org.mitre.oval:def:5594
Microsoft Windows XP (x86) SP3 is installed oval:org.mitre.oval:def:5631
Microsoft Windows Server 2008 (32-bit) is installed oval:org.mitre.oval:def:4870
Microsoft Windows Server 2008 (32-bit) Service Pack 2 is installed oval:org.mitre.oval:def:5653
Microsoft Windows Server 2003 (ia64) SP2 is installed oval:org.mitre.oval:def:1442
Microsoft Windows Server 2003 SP2 (x64) is installed oval:org.mitre.oval:def:2161
Microsoft Windows Server 2003 SP2 (x86) is installed oval:org.mitre.oval:def:1935
Microsoft Windows XP x64 Edition SP2 is installed oval:org.mitre.oval:def:4193
IF : All of the following are true .NET Framework 2.0 SP2 KB2656352
Prerequisites (Extended Definitions)
Microsoft .NET Framework 2.0 Service Pack 2 is installed oval:org.mitre.oval:def:6158
IF : Any one of the following are true GDR or LDR Service branch
IF : the version of System.Web.dll is less than 2.0.50727.3634
Windows : File Test :  the version of System.Web.dll is less than 2.0.50727.3634 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version less than 2.0.50727.3634 (datatype=version)
windows : file_state 
IF : All of the following are true LDR
IF : the version of System.Web.dll is greater than or equal to 2.0.50727.5600
Windows : File Test :  the version of System.Web.dll is greater than or equal to 2.0.50727.5600 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version greater than or equal 2.0.50727.5600 (datatype=version)
windows : file_state 
IF : the version of System.Web.dll is less than 2.0.50727.5710
Windows : File Test :  the version of System.Web.dll is less than 2.0.50727.5710 
At least one of the objects listed below must exist on the system (Existence check)
Windows : File 
[[value of ${{windows:registry_object:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion : SystemRoot}}]]\Microsoft.NET\Framework\v2.0.50727\system.web.dll
version less than 2.0.50727.5710 (datatype=version)
windows : file_state 
IF : Any one of the following are true affected Operating System
Prerequisites (Extended Definitions)
Microsoft Windows Server 2003 (ia64) SP2 is installed oval:org.mitre.oval:def:1442
Microsoft Windows Server 2003 SP2 (x64) is installed oval:org.mitre.oval:def:2161
Microsoft Windows Server 2003 SP2 (x86) is installed oval:org.mitre.oval:def:1935
Microsoft Windows XP (x86) SP3 is installed oval:org.mitre.oval:def:5631
Microsoft Windows XP x64 Edition SP2 is installed oval:org.mitre.oval:def:4193

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