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'.

From the Tenable Blog

CVE-2020-0601: NSA Reported Spoofing Vulnerability in Windows CryptoAPI

Published: 2020-01-14

Microsoft kicks off the first Patch Tuesday of 2020 with the disclosure of CVE-2020-0601, a highly critical flaw in the cryptographic library for Windows. UPDATE 01/16/2020: This blog post has been updated to reflect the availability of proof-of-concept code for CVE-2020-0601, which is being referred to as CurveBall or Chain of Fools.

References

• Advisories
• Exploits
• References
• Tenable Blogs
• More

Details

Source: Mitre, NVD

Named Vulnerability: CurveBallNamed Vulnerability: ChainOfFoolsNamed Vulnerability: Chain of FoolsNamed Vulnerability: CURVEBALLKnown Exploited Vulnerability (KEV)

Risk Information

CVSS v2

CVSS v3

EPSS