CVE-2020-0601
Microsoft Windows CryptoAPI Spoofing Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply updates per vendor instructions.
CISA notes
Reference CISA's ED 20-02 (https://www.cisa.gov/news-events/directives/ed-20-02-mitigate-windows-vulnerabilities-january-2020-patch-tuesday) for further guidance and requirements. Note: The due date for addressing this vulnerability aligns with the requirements outlined in ED 20-02. https://nvd.nist.gov/vuln/detail/CVE-2020-0601
Description
A spoofing vulnerability exists in the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates.An attacker could exploit the vulnerability by using a spoofed code-signing certificate to sign a malicious executable, making it appear the file was from a trusted, legitimate source, aka 'Windows CryptoAPI Spoofing Vulnerability'.
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NAffected Products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows | 10 Version 1803 for 32-bit Systems 10 Version 1803 for x64-based Systems 10 Version 1803 for ARM64-based Systems 10 Version 1809 for 32-bit Systems 10 Version 1809 for x64-based Systems 10 Version 1809 for ARM64-based Systems 10 Version 1709 for 32-bit Systems 10 Version 1709 for x64-based Systems 10 Version 1709 for ARM64-based Systems 10 for 32-bit Systems 10 for x64-based Systems 10 Version 1607 for 32-bit Systems 10 Version 1607 for x64-based Systems |
| Microsoft | Windows Server | version 1803 (Core Installation) 2019 2019 (Core installation) 2016 2016 (Core installation) |
| Microsoft | Windows 10 Version 1903 for 32-bit Systems | unspecified |
| Microsoft | Windows 10 Version 1903 for x64-based Systems | unspecified |
| Microsoft | Windows 10 Version 1903 for ARM64-based Systems | unspecified |
| Microsoft | Windows Server, version 1903 (Server Core installation) | unspecified |
| Microsoft | Windows 10 Version 1909 for 32-bit Systems | unspecified |
| Microsoft | Windows 10 Version 1909 for x64-based Systems | unspecified |
| Microsoft | Windows Server, version 1909 (Server Core installation) | unspecified |
| Microsoft | Windows 10 Version 1909 for ARM64-based Systems | unspecified |
References
3 Links- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601
- http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html
- http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html
Record Details
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