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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.010 (62.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
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
- support.f5.com/csp/article/K43450419 (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.