SB2021021902 - Improper certificate revocation in curl implementation within Command Line Interface, EAV Monitors and iRules components in F5 BIG-IP products
Published: February 19, 2021
Security Bulletin ID
SB2021021902
CSH Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Check for Certificate Revocation (CVE-ID: CVE-2020-8286)
CWE-ID: CWE-299 - Improper Check for Certificate Revocation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to incorrectly implemented checks for OCSP stapling. A remote attacker can provide a fraudulent OCSP response that would appear fine, instead of the real one.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.