CVE-2020-0601

MEDIUM

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'.

References

http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html

http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601

Details

Source: MITRE

Published: 2020-01-14

Updated: 2020-01-16

Type: CWE-295

Risk Information

CVSS v2.0

Base Score: 5.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

Impact Score: 4.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 8.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Impact Score: 5.2

Exploitability Score: 2.8

Severity: HIGH