CVE-2019-1006

Description

An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML tokens with arbitrary symmetric keys, aka 'WCF/WIF SAML Token Authentication Bypass Vulnerability'.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.04% Top 15%
Vendor Advisory microsoft.com
Affected: Microsoft Windows
Affected: Microsoft Windows Server
Affected: Microsoft Microsoft SharePoint Foundation
Affected: Microsoft Microsoft .NET Framework 4.5.2
Affected: Microsoft Microsoft .NET Framework 4.6
Affected: Microsoft Microsoft SharePoint Enterprise Server
Affected: Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2
Affected: Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Affected: Microsoft Microsoft SharePoint Server
Affected: Microsoft Windows 10 Version 1903 for 32-bit Systems
Affected: Microsoft Windows 10 Version 1903 for x64-based Systems
Affected: Microsoft Windows 10 Version 1903 for ARM64-based Systems
Affected: Microsoft Windows Server, version 1903 (Server Core installation)
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation)
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 R2
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows RT 8.1
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation)
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server 2016
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation)
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for 32-bit Systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for x64-based Systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems
Affected: Microsoft Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation)
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation)
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation)
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
Affected: Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation)
Affected: Microsoft Microsoft.IdentityModel
Affected: Microsoft Microsoft .NET Framework 3.5
Affected: Microsoft Microsoft .NET Framework 3.0
Affected: Microsoft Microsoft .NET Framework 2.0
Affected: Microsoft Microsoft .NET Framework 3.5.1
Published at:
Updated at:

References

Link Tags
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1006 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-1006?
CVE-2019-1006 has been scored as a high severity vulnerability.
How to fix CVE-2019-1006?
To fix CVE-2019-1006, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-1006 being actively exploited in the wild?
It is possible that CVE-2019-1006 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-1006?
CVE-2019-1006 affects Microsoft Windows, Microsoft Windows Server, Microsoft Microsoft SharePoint Foundation, Microsoft Microsoft .NET Framework 4.5.2, Microsoft Microsoft .NET Framework 4.6, Microsoft Microsoft SharePoint Enterprise Server, Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2, Microsoft Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2, Microsoft Microsoft SharePoint Server, Microsoft Windows 10 Version 1903 for 32-bit Systems, Microsoft Windows 10 Version 1903 for x64-based Systems, Microsoft Windows 10 Version 1903 for ARM64-based Systems, Microsoft Windows Server, version 1903 (Server Core installation), Microsoft Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1, Microsoft Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1, Microsoft Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), Microsoft Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1, Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012, Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation), Microsoft Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems, Microsoft Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems, Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 R2, Microsoft Microsoft .NET Framework 4.8 on Windows RT 8.1, Microsoft Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation), Microsoft Microsoft .NET Framework 4.8 on Windows Server 2016, Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems, Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems, Microsoft Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation), Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for 32-bit Systems, Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1703 for x64-based Systems, Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems, Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems, Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems, Microsoft Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems, Microsoft Microsoft .NET Framework 4.8 on Windows Server, version 1803 (Server Core Installation), Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems, Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems, Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019, Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation), Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems, Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems, Microsoft Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation), Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems, Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems, Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019, Microsoft Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation), Microsoft Microsoft.IdentityModel, Microsoft Microsoft .NET Framework 3.5, Microsoft Microsoft .NET Framework 3.0, Microsoft Microsoft .NET Framework 2.0, Microsoft Microsoft .NET Framework 3.5.1.
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