Actively exploited · Published Jan 14, 2020 · Assigned by microsoft
CVE-2020-0601
High 8.1 Exploited
In plain English
A high-severity improper certificate validation in Windows from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 89.1% (higher than 99.8% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by May 3, 2022.
Official 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'.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | containerd | 1.3.3-r0 | ALPINE-CVE-2020-0601 |
| Alpine:v3.21 | containerd | 1.3.3-r0 | ALPINE-CVE-2020-0601 |
| Alpine:v3.22 | containerd | 1.3.3-r0 | ALPINE-CVE-2020-0601 |
| Alpine:v3.23 | containerd | 1.3.3-r0 | ALPINE-CVE-2020-0601 |
| Alpine:v3.24 | containerd | 1.3.3-r0 | ALPINE-CVE-2020-0601 |
| Go | stdlib | 1.12.16, 1.13.7 | GO-2022-0535 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows | 10 Version 1803 for 32-bit Systems10 Version 1803 for x64-based Systems10 Version 1803 for ARM64-based Systems10 Version 1809 for 32-bit Systems10 Version 1809 for x64-based Systems10 Version 1809 for ARM64-based Systems10 Version 1709 for 32-bit Systems10 Version 1709 for x64-based Systems |
| Microsoft | Windows Server | version 1803 (Core Installation)20192019 (Core installation)20162016 (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 |
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601 x_refsource_MISC
- http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html x_refsource_MISC
- http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-0601 government-resource