Vulnerability in Golang Go
CVE-2020-0601
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'.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.894 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.894 · newest: 0.894 · change: 0.000
Affected products
- Golang Go
- Microsoft Windows — versions 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems
- Microsoft Windows 10 1507
- Microsoft Windows 10 1607
- Microsoft Windows 10 1709
- Microsoft Windows 10 1803
- Microsoft Windows 10 1809
- Microsoft Windows 10 1903
- Microsoft Windows 10 1909
- Microsoft Windows 10 Version 1903 For 32-Bit Systems — versions unspecified
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601 (Patch, Vendor Advisory)
- packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoo… (VDB Entry, Third Party Advisory)
- packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoo… (VDB Entry, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2020-0601?
- CVE-2020-0601 is a high-severity vulnerability in Golang Go, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2020-01-14.
- How severe is CVE-2020-0601?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2020-0601 known to be exploited?
- Yes. CVE-2020-0601 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 162 public proof-of-concept repositories are indexed.