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Windows CryptoAPI Spoofing Vulnerability (CVE-2020-0601 - CurveBall)
editWindows CryptoAPI Spoofing Vulnerability (CVE-2020-0601 - CurveBall)
editA 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.
Rule type: query
Rule indices:
- winlogbeat-*
Severity: low
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-6m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Windows
Version: 2 (version history)
Added (Elastic Stack release): 7.7.0
Last modified (Elastic Stack release): 7.9.0
Rule authors: Elastic
Rule license: Elastic License
Rule query
editevent.provider:"Microsoft-Windows-Audit-CVE" and message:"[CVE-2020-0601]"
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Code Signing
- ID: T1116
- Reference URL: https://attack.mitre.org/techniques/T1116/
Rule version history
edit- Version 2 (7.9.0 release)
-
- Formatting only