Attacker Value
Low
(1 user assessed)
Exploitability
Moderate
(1 user assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Network
0

CVE-2020-0605

Disclosure Date: January 14, 2020 •
CVE-2020-0605 CVSS v3 Base Score: 8.8
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file.An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user, aka ‘.NET Framework Remote Code Execution Vulnerability’. This CVE ID is unique from CVE-2020-0606.

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3
Ratings
  • Attacker Value
    Low
  • Exploitability
    Medium
Common in enterpriseEasy to weaponizeUnauthenticatedVulnerable in uncommon configuration
Technical Analysis

A vulnerability exists in how Microsoft’s XPS documents are processed using .NET that can be leveraged to execute code using a deserialization attack. XPS files are effectively ZIP archives containing multiple member, of which ones .fdoc, and .fpage can be used as triggers. While this vulnerability was patched in May of 2020, it’s related to a similar vulnerability patched in January of 2020, which patched the same usage of the XPS document’s .fdseq member file types.

The default XPS viewer in Windows does not use .NET to render the XPS document making it unaffected by this vulnerability. A vulnerable application would need to be configured to process a maliciously crafted XPS document. Due to this, it is unclear if in practice this vulnerability will require user interaction or authentication to leverage.

See: https://www.mdsec.co.uk/2020/05/analysis-of-cve-2020-0605-code-execution-using-xps-files-in-net/

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CVSS V3 Severity and Metrics
Base Score:
8.8 High
Impact Score:
5.9
Exploitability Score:
2.8
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
.NET Core 3.0
.NET Core 3.1
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 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 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 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 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 2012 R2
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 Server 2012
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 2012 R2 (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 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 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 4.8 on Windows Server, version 1803 (Server Core Installation)
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 Windows 10 Version 1607 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 10 Version 1709 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 10 Version 1709 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)
Microsoft .NET Framework 4.8 on Windows Server 2012
Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows Server 2012 R2
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
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
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems
Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)
Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)
Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation) 1903
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 8.1 for 32-bit systems
Microsoft .NET Framework 4.8 on Windows Server 2016
Microsoft .NET Framework 4.8 on Windows RT 8.1
Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows Server 2012 (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 4.7.2 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 4.8 on Windows 10 Version 1903 for x64-based Systems
Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.5.2 Windows 8.1 for x64-based systems
Microsoft .NET Framework 4.5.2 Windows RT 8.1
Microsoft .NET Framework 4.5.2 Windows 8.1 for 32-bit systems
Microsoft .NET Framework 4.5.2 Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 4.5.2 Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 4.5.2 Windows 7 for 32-bit 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 (Server Core installation)
Microsoft .NET Framework 4.5.2 Windows Server 2012 R2 (Server Core installation)
Microsoft .NET Framework 4.5.2 Windows Server 2012
Microsoft .NET Framework 4.5.2 Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 4.5.2 Windows Server 2012 R2
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 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 3.5.1 Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 3.5.1 Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
Microsoft .NET Framework 3.5 Windows 8.1 for x64-based systems
Microsoft .NET Framework 3.5 Windows Server 2012 R2 (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 Server 2012 R2
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 4.7.2 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 Server 2016
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 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems
Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • Microsoft

Products

  • .NET Core,
  • Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2,
  • Microsoft .NET Framework 3.0,
  • 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 4.8 on Windows Server, version 1803 (Server Core Installation),
  • 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 1709 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 10 Version 1709 for x64-based Systems,
  • Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation),
  • Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation),
  • Microsoft .NET Framework 4.8 on Windows Server 2012,
  • Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems,
  • Microsoft .NET Framework 4.8 on Windows Server 2012 R2,
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019,
  • Microsoft .NET Framework 4.6,
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems,
  • Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1,
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019,
  • Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1,
  • Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems,
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation),
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation),
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation),
  • 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 8.1 for 32-bit systems,
  • Microsoft .NET Framework 4.8 on Windows Server 2016,
  • Microsoft .NET Framework 4.8 on Windows RT 8.1,
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems,
  • Microsoft .NET Framework 4.8 on Windows Server 2012 (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 4.7.2 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 4.8 on Windows 10 Version 1903 for x64-based Systems,
  • Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1,
  • Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems,
  • Microsoft .NET Framework 4.5.2,
  • Microsoft .NET Framework 3.5.1,
  • Microsoft .NET Framework 3.5,
  • 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 4.7.2 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 Server 2016,
  • 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 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems,
  • Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems

Additional Info

Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Technical Analysis