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high8.1Known exploitedPublic exploit code

CVE-2020-0601

Microsoft Windows CryptoAPI Spoofing Vulnerability

Exploited in the wild

This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2021-11-03. Federal due date: 2022-05-03.

Apply updates per vendor instructions.

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

Impact

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 products

VendorProductAffected versions
MicrosoftWindows 10 1507
All versions
MicrosoftWindows 10 1607
All versions
MicrosoftWindows 10 1709
All versions
MicrosoftWindows 10 1803
All versions
MicrosoftWindows 10 1809
All versions
MicrosoftWindows 10 1903
All versions
MicrosoftWindows 10 1909
All versions
MicrosoftWindows Server 1803
All versions
MicrosoftWindows Server 1903
All versions
MicrosoftWindows Server 1909
All versions
MicrosoftWindows Server 2016
All versions
MicrosoftWindows Server 2019
All versions

Weakness classification

References