Attacker Value
Unknown
0
CVE-2019-0820
0
CVE ID
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CVE-2019-0820
(Last updated November 27, 2024) ▾
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Command and Control
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Credential Access
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Description
A denial of service vulnerability exists when .NET Framework and .NET Core improperly process RegEx strings, aka ‘.NET Framework and .NET Core Denial of Service Vulnerability’. This CVE ID is unique from CVE-2019-0980, CVE-2019-0981.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Microsoft .NET Framework 4.5.2 Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 4.5.2 Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.5.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Microsoft .NET Framework 4.5.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.5.2 Windows Server 2012
Microsoft .NET Framework 4.5.2 Windows Server 2012 (Server Core installation)
Microsoft .NET Framework 4.5.2 Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.5.2 Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.5.2 Windows Server 2012 R2
Microsoft .NET Framework 4.5.2 Windows RT 8.1
Microsoft .NET Framework 4.5.2 Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 4.5.2 Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 4.5.2 Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 4.6 Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 4.6 Windows Server 2008 for x64-based Systems Service Pack 2
.NET Core 1
.NET Core 1.1
.NET Core 2.1
.NET Core 2.2
Microsoft .NET Framework 4.7.2 Windows 10 Version 1803 for 32-bit Systems
Microsoft .NET Framework 4.7.2 Windows 10 Version 1803 for x64-based Systems
Microsoft .NET Framework 4.7.2 Windows Server, version 1803 (Server Core Installation)
Microsoft .NET Framework 4.7.2 Windows 10 Version 1803 for ARM64-based Systems
Microsoft .NET Framework 4.7.2 Windows Server 2019
Microsoft .NET Framework 4.7.2 Windows Server 2019 (Server Core installation)
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2012
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2012 (Server Core installation)
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2012 R2
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows RT 8.1
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Windows Server 2016
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Windows Server 2016 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.8 on Windows Server 2012
Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.8 on Windows Server 2012 R2
Microsoft .NET Framework 4.8 on Windows RT 8.1
Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows Server 2016
Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation)
Microsoft .NET Framework 4.8 on Windows 10 Version 1809 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1809 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows Server 2019
Microsoft .NET Framework 4.8 on Windows Server 2019 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows 10 Version 1903 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1903 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows Server, version 1903 (Server Core installation)
Microsoft .NET Framework 3.5 Windows Server 2012
Microsoft .NET Framework 3.5 Windows Server 2012 (Server Core installation)
Microsoft .NET Framework 3.5 Windows 8.1 for 32-bit systems
Microsoft .NET Framework 3.5 Windows 8.1 for x64-based systems
Microsoft .NET Framework 3.5 Windows Server 2012 R2
Microsoft .NET Framework 3.5 Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 3.5 Windows 10 for 32-bit Systems
Microsoft .NET Framework 3.5 Windows 10 for x64-based Systems
Microsoft .NET Framework 3.5 Windows Server 2016
Microsoft .NET Framework 3.5 Windows 10 Version 1607 for 32-bit Systems
Microsoft .NET Framework 3.5 Windows 10 Version 1607 for x64-based Systems
Microsoft .NET Framework 3.5 Windows Server 2016 (Server Core installation)
Microsoft .NET Framework 3.5 Windows 10 Version 1703 for 32-bit Systems
Microsoft .NET Framework 3.5 Windows 10 Version 1703 for x64-based Systems
Microsoft .NET Framework 3.5 Windows 10 Version 1709 for 32-bit Systems
Microsoft .NET Framework 3.5 Windows 10 Version 1709 for x64-based Systems
Microsoft .NET Framework 3.5 Windows 10 Version 1803 for 32-bit Systems
Microsoft .NET Framework 3.5 Windows 10 Version 1803 for x64-based Systems
Microsoft .NET Framework 3.5 Windows Server, version 1803 (Server Core Installation)
Microsoft .NET Framework 3.5 Windows 10 Version 1803 for ARM64-based Systems
Microsoft .NET Framework 3.5 Windows 10 Version 1809 for 32-bit Systems
Microsoft .NET Framework 3.5 Windows 10 Version 1809 for x64-based Systems
Microsoft .NET Framework 3.5 Windows Server 2019
Microsoft .NET Framework 3.5 Windows Server 2019 (Server Core installation)
Microsoft .NET Framework 3.5 Windows 10 Version 1709 for ARM64-based Systems
Microsoft .NET Framework 3.5 on Windows 10 Version 1903 for 32-bit Systems
Microsoft .NET Framework 3.5 on Windows 10 Version 1903 for x64-based Systems
Microsoft .NET Framework 3.5 on Windows Server, version 1903 (Server Core installation)
Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2
Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 3.5.1 Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 3.5.1 Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for x64-based Systems Service Pack 1
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
- microsoft,
- redhat
Products
- .net core 1.0,
- .net core 1.1,
- .net core 2.1,
- .net core 2.2,
- .net framework 2.0,
- .net framework 3.0,
- .net framework 3.5,
- .net framework 3.5.1,
- .net framework 4.5.2,
- .net framework 4.6,
- .net framework 4.6.1,
- .net framework 4.6.2,
- .net framework 4.7,
- .net framework 4.7.1,
- .net framework 4.7.2,
- .net framework 4.8,
- enterprise linux 8.0,
- enterprise linux eus 8.1,
- enterprise linux eus 8.2,
- enterprise linux eus 8.4,
- enterprise linux eus 8.6,
- enterprise linux server aus 8.2,
- enterprise linux server aus 8.4,
- enterprise linux server aus 8.6,
- enterprise linux server tus 8.2,
- enterprise linux server tus 8.4,
- enterprise linux server tus 8.6
References
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
AttackerKB requires a CVE ID in order to pull vulnerability data and references from the CVE list and the National Vulnerability Database. If available, please supply below:
