Spoofing attack in Windows and Windows Server - CVE-2020-0601
Published: January 14, 2020 / Updated: May 7, 2023
Vulnerability identifier: #VU24254
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2020-0601
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Microsoft
Affected software:
Windows
Windows Server
Windows
Windows Server
Detailed vulnerability 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.
A successful exploit could also allow the attacker to conduct man-in-the-middle attacks and decrypt confidential information on user connections to the affected software.
Updated
According to VirusTotal, there is in the wild exploitation of his vulnerability as of January 17, 2020.
How to mitigate CVE-2020-0601
Install updates from vendor's website.