CVE-2021-23030
Last modified
CVE-2021-23030 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, and all versions of 12.1.x, when a WebSocket profile is configured on a virtual server, undisclosed requests can cause bd to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.. EPSS estimates a 0.93% chance of exploitation in the next 30 days.
Description
On BIG-IP Advanced WAF and BIG-IP ASM version 16.0.x before 16.0.1.2, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, 13.1.x before 13.1.4.1, and all versions of 12.1.x, when a WebSocket profile is configured on a virtual server, undisclosed requests can cause bd to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Advanced Web Application Firewall | >= 12.1.0, <= 12.1.6 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 13.1.0, <= 13.1.4 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 14.1.0, <= 14.1.4 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 15.1.0, <= 15.1.3 |
| F5 | Big-Ip Advanced Web Application Firewall | >= 16.0.0, <= 16.0.1.1 |
| F5 | Big-Ip Application Security Manager | >= 12.1.0, <= 12.1.6 |
| F5 | Big-Ip Application Security Manager | >= 13.1.0, <= 13.1.4 |
| F5 | Big-Ip Application Security Manager | >= 14.1.0, <= 14.1.4 |
| F5 | Big-Ip Application Security Manager | >= 15.1.0, <= 15.1.3 |
| F5 | Big-Ip Application Security Manager | >= 16.0.0, <= 16.0.1.1 |
References
- https://support.f5.com/csp/article/K42051445Mitigation, Vendor Advisory
- https://support.f5.com/csp/article/K42051445Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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