PT-2021-15347 · Nginx · Nginx Controller

Published 2021-06-01 · Updated 2021-06-11 · CVE-2021-23021

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Nginx Controller versions 3.x before 3.7.0

Description The issue concerns the Nginx Controller agent configuration file /etc/controller-agent/agent.conf, which has world-readable permissions due to its current permission bits being set to 644.

Recommendations For versions prior to 3.7.0, update to version 3.7.0 or later to resolve the issue.

Fix

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

CVE-2021-23021

Affected Products

Nginx Controller

References · 3

• https://osv.dev/vulnerability/CVE-2021-23021 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-23021 · Security Note
• https://support.f5.com/csp/article/K36926027 · Vendor Advisory