Vulnerability in F5 Big-Ip Access Policy Manager
CVE-2020-5871
On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service (DoS) when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue. There is no control-plane exposure.
EPSS: 0.010 (60.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- F5 Big-ip_access_policy_manager
- F5 Big-ip_advanced_firewall_manager
- F5 Big-ip_analytics
- F5 Big-ip_application_acceleration_manager
- F5 Big-ip_application_security_manager
- F5 Big-ip_domain_name_system
- F5 Big-ip_fraud_protection_service
- F5 Big-ip_global_traffic_manager
- F5 Big-ip_link_controller
- F5 Big-ip_local_traffic_manager
References
- f5sirt@f5.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-5871?
- CVE-2020-5871 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager. CVSS score: 7.5/10. Published 2020-04-30.
- How severe is CVE-2020-5871?
- High severity. CVSS v3 base score is 7.5 out of 10.