What is CVE-2021-23020?

CVE-2021-23020 is a medium-severity vulnerability in F5 Nginx_controller, classified under Use of Insufficiently Random Values. CVSS score: 5.5/10. Published 2021-06-01.

How severe is CVE-2021-23020?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in F5 Nginx_controller

CVE-2021-23020

The NAAS 3.x before 3.10.0 API keys were generated using an insecure pseudo-random string and hashing algorithm which could lead to predictable keys.

EPSS: 0.003 (17.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

F5 Nginx_controller
N/a Nginx Controller — versions “3.x before 3.10.0”

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

f5sirt@f5.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-23020?: CVE-2021-23020 is a medium-severity vulnerability in F5 Nginx_controller, classified under Use of Insufficiently Random Values. CVSS score: 5.5/10. Published 2021-06-01.
How severe is CVE-2021-23020?: Medium severity. CVSS v3 base score is 5.5 out of 10.