CVE-2020-5923
MEDIUMCVSS 5.4/10EPSS 0.50%
Last modified
CVE-2020-5923 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In BIG-IP versions 15.0.0-15.1.0.4, 14.1.0-14.1.2.6, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1 and BIG-IQ versions 5.4.0-7.0.0, Self-IP port-lockdown bypass via IPv6 link-local addresses.. EPSS estimates a 0.50% chance of exploitation in the next 30 days.
Description
In BIG-IP versions 15.0.0-15.1.0.4, 14.1.0-14.1.2.6, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1 and BIG-IQ versions 5.4.0-7.0.0, Self-IP port-lockdown bypass via IPv6 link-local addresses.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Access Policy Manager | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Access Policy Manager | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Access Policy Manager | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Access Policy Manager | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Access Policy Manager | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Advanced Firewall Manager | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Advanced Firewall Manager | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Advanced Firewall Manager | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Advanced Firewall Manager | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Advanced Firewall Manager | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Analytics | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Analytics | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Analytics | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Analytics | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Analytics | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Application Acceleration Manager | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Application Acceleration Manager | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Application Acceleration Manager | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Application Acceleration Manager | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Application Acceleration Manager | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Application Security Manager | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Application Security Manager | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Application Security Manager | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Application Security Manager | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Application Security Manager | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Domain Name System | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Domain Name System | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Domain Name System | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Domain Name System | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Domain Name System | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Fraud Protection Service | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Fraud Protection Service | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Fraud Protection Service | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Fraud Protection Service | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Fraud Protection Service | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Global Traffic Manager | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Global Traffic Manager | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Global Traffic Manager | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Global Traffic Manager | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Global Traffic Manager | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Link Controller | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Link Controller | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Link Controller | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Link Controller | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Link Controller | >= 15.0.0, < 15.1.0.5 |
| F5 | Big-Ip Local Traffic Manager | >= 11.6.1, < 11.6.5.2 |
| F5 | Big-Ip Local Traffic Manager | >= 12.1.0, < 12.1.5.2 |
| F5 | Big-Ip Local Traffic Manager | >= 13.1.0, < 13.1.3.4 |
| F5 | Big-Ip Local Traffic Manager | >= 14.1.0, < 14.1.2.7 |
| F5 | Big-Ip Local Traffic Manager | >= 15.0.0, < 15.1.0.5 |
Showing 50 of 58 affected configurations. See NVD for the full list.
References
- https://support.f5.com/csp/article/K05975972Vendor Advisory
- https://support.f5.com/csp/article/K05975972Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-5923?
In BIG-IP versions 15.0.0-15.1.0.4, 14.1.0-14.1.2.6, 13.1.0-13.1.3.3, 12.1.0-12.1.5.1, and 11.6.1-11.6.5.1 and BIG-IQ versions 5.4.0-7.0.0, Self-IP port-lockdown bypass via IPv6 link-local addresses.
How severe is CVE-2020-5923?
CVE-2020-5923 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5923?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2020-5923?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST