CVE-2021-23040
8.8 · HIGHOverview
CVE-2021-23040 is a high-severity vulnerability affecting f5 big-ip_advanced_firewall_manager. It was published on September 14, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
On BIG-IP AFM version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3, 14.1.x before 14.1.4.2, 13.1.x before 13.1.4.1, and all versions of 12.1.x, a SQL injection vulnerability exists in an undisclosed page of the BIG-IP Configuration utility. This issue is exposed only when BIG-IP AFM is provisioned. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Remediation
Check the references section for vendor advisories and patches from f5. Update big-ip_advanced_firewall_manager to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| f5 | big-ip_advanced_firewall_manager | 12.1.0 | Affected |
Frequently Asked Questions
What is CVE-2021-23040?
CVE-2021-23040 is a high-severity vulnerability affecting f5 big-ip_advanced_firewall_manager. It was published on September 14, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-23040?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-23040?
Check the references section for vendor advisories and patches from f5. Update big-ip_advanced_firewall_manager to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-23040?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-23040 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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