High severity · published Jan 14, 2020
CVE-2020-0601
Microsoft Windows CryptoAPI Spoofing Vulnerability
In wildKEV
8.1
CVSS
89.1%
EPSS
Yes
On KEV
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'.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)89.1% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Nov 3, 2021
Federal remediation dueMay 3, 2022
Ransomware campaign useNot known
Affected products
Which versions
WI
Windows · Microsoft
10 Version 1803 for 32-bit Systems; 10 Version 1803 for x64-based Systems; 10 Version 1803 for ARM64-based Systems; 10 Version 1809 for 32-bit Systems; 10 Version 1809 for x64-based Systems; 10 Version 1809 for ARM64-based Systems; +7 more · source: vendor, KEV
W1
Windows 10 Version 1903 for 32-bit Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1903 for ARM64-based Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1903 for x64-based Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1909 for 32-bit Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1909 for ARM64-based Systems · Microsoft
All versions, or not specified · source: vendor
W1
Windows 10 Version 1909 for x64-based Systems · Microsoft
All versions, or not specified · source: vendor
WS
Windows Server, version 1903 (Server Core installation) · Microsoft
All versions, or not specified · source: vendor
WS
Windows Server, version 1909 (Server Core installation) · Microsoft
All versions, or not specified · source: vendor
GO
GO · Golang
1.12 before 1.12.16; 1.13 before 1.13.7 · source: NVD
W1
Windows 10 1507 · Microsoft
All versions, or not specified · source: NVD
W1
Windows 10 1607 · Microsoft
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-0601
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-0601
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0601
x_refsource_MISC
http://packetstormsecurity.com/files/155961/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html
x_refsource_MISC
http://packetstormsecurity.com/files/155960/CurveBall-Microsoft-Windows-CryptoAPI-Spoofing-Proof-Of-Concept.html
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