Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 99.9%; technical severity is CVSS 9.8.
On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, and 12.1.x before 12.1.5.3 amd BIG-IQ 7.1.0.x before 7.1.0.3 and 7.0.0.x before 7.0.0.2, the iControl REST interface has an unauthenticated remote command execution vulnerability. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
Who should care
- Teams operating Big-ip Access Policy Manager, Big-ip Advanced Firewall Manager, Big-ip Advanced Web Application Firewall +13 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Big-ip Access Policy Manager, Big-ip Advanced Firewall Manager, Big-ip Advanced Web Application Firewall +13 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-918
- Affected versions
- F5 Big-ip Access Policy Manager (Start Including: 16.0.0, End Excluding: 16.0.1.1); F5 Big-ip Advanced Firewall Manager (Start Including: 16.0.0, End Excluding: 16.0.1.1); F5 Big-ip Advanced Web Application Firewall (Start Including: 16.0.0, End Excluding: 16.0.1.1); F5 Big-ip Analytics (Start Including: 16.0.0, End Excluding: 16.0.1.1); F5 BIG-IP and BIG-IQ Centralized Management; F5 Big-ip Application Acceleration Manager (Start Including: 16.0.0, End Excluding: 16.0.1.1); F5 Big-ip Application Security Manager (Start Including: 16.0.0, End Excluding: 16.0.1.1); F5 Big-ip Ddos Hybrid Defender (Start Including: 16.0.0, End Excluding: 16.0.1.1)
- Published
- 31 March 2021
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 99.9%
- Signal calculated at 88