Vulnerability identifier: #VU24254

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2020-0601

CWE-ID: CWE-451

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to the way Windows CryptoAPI (Crypt32.dll) validates Elliptic Curve Cryptography (ECC) certificates. A remote attacker can use a spoofed code-signing certificate to sign a malicious executable, make it appear the file was from a trusted, legitimate source, trick a victim to open it and gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Windows: 10 - 10 1909

Windows Server: 2016 - 2019 1909

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601
http://www.virustotal.com/gui/file/d6ab910259c9bc68196aeec3e9ff4864bada22738c02ecf5ada7912ced292d28...

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.