CVE-2020-0601
- State
- Published
- Severity
- 8.1 High
- Published
- Jan 14, 2020
- Updated
- Oct 21, 2025
- Reserved
- Nov 4, 2019
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'.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N | CISA-ADP |
Weaknesses
- CWE-295 Improper Certificate Validation
Affected Products
| Product | Versions |
|---|---|
WindowsMicrosoft |
|
Windows ServerMicrosoft |
|
Windows 10 Version 1903 for 32-bit SystemsMicrosoft |
|
Windows 10 Version 1903 for x64-based SystemsMicrosoft |
|
Windows 10 Version 1903 for ARM64-based SystemsMicrosoft |
|
Windows Server, version 1903 (Server Core installation)Microsoft |
|
Windows 10 Version 1909 for 32-bit SystemsMicrosoft |
|
Windows 10 Version 1909 for x64-based SystemsMicrosoft |
|
Windows Server, version 1909 (Server Core installation)Microsoft |
|
Windows 10 Version 1909 for ARM64-based SystemsMicrosoft |
|
References
- 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
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0601government-resource
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