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CVE-2022-1388: F5 BIG-IP Missing Authentication Vulnerability

CVE-2022-1388 is rated critical with a CVSS v3.1 base score of 9.8 and affects F5 BIG-IP. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-05-10, which means exploitation in the wild has been observed.

Vulnerability description

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all 12.1.x and 11.6.x versions, undisclosed requests may bypass iControl REST authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

• Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
• Attack complexity: Low. No special conditions; the attack can be repeated reliably.
• Privileges required: None. No account or prior access is needed.
• User interaction: None. No action from any user is needed.
• Scope: Unchanged. Impact stays within the vulnerable component.
• Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
• Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
• Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-306: Missing Authentication for Critical Functionality

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

Affected products

• F5 Big IP Access Policy Manager: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Advanced Firewall Manager: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Analytics: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Application Acceleration Manager: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Application Security Manager: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Domain Name System: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Fraud Protection Service: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Global Traffic Manager: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Link Controller: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Local Traffic Manager: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2
• F5 Big IP Policy Enforcement Manager: from 11.6.1 up to and including 11.6.5; from 12.1.0 up to and including 12.1.6; from 13.1.0 before 13.1.5; from 14.1.0 before 14.1.4.6; from 15.1.0 before 15.1.5.1; from 16.1.0 before 16.1.2.2

References

• https://support.f5.com/csp/article/K23605346
• https://www.secpod.com/blog/critical-f5-big-ip-remote-code-execution-vulnerability-patch-now/
• http://packetstormsecurity.com/files/167007/F5-BIG-IP-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/167118/F5-BIG-IP-16.0.x-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/167150/F5-BIG-IP-iControl-Remote-Code-Execution.html
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-1388