Jan 2020:
CVE-2020-0646 Published on January 14, 2020

A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.

NVD

Known Exploited Vulnerability

This Microsoft .NET Framework Remote Code Execution Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka '.NET Framework Remote Code Execution Injection Vulnerability'.

The following remediation steps are recommended / required by May 3, 2022: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2020-0646 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors in an automatable fashion. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

What is an aka Blind XPath Injection Vulnerability?

The software does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system. Within XML, special elements could include reserved words or characters such as "<", ">", """, and "&", which could then be used to add new data or modify XML syntax.

CVE-2020-0646 has been classified to as an aka Blind XPath Injection vulnerability or weakness.


Products Associated with CVE-2020-0646

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Microsoft Windows 10
 
Microsoft Windows Server
 
Microsoft Windows Server 2016
 
Microsoft Windows 7
 
Microsoft Windows 8.1
 
Microsoft Windows Rt 8 1
 
Microsoft Windows Server 2008
 
Microsoft Windows Server 2012
 
Microsoft Windows Server 2019
 

Affected Versions

Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2: Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2: 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 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 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: Microsoft .NET Framework 4.8 on 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 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 RT 8.1: 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 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation): 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 Server 2012 R2: Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation): Microsoft .NET Framework 4.6: Microsoft .NET Framework 3.0: Microsoft .NET Framework 3.5: Microsoft .NET Framework 3.5.1: Microsoft .NET Framework 4.5.2: Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server, version 1803 (Server Core Installation): Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation): Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems: Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems: Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016:

Exploit Probability

EPSS
93.87%
Percentile
99.88%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.