First published: Tue Jun 01 2021(Updated: )
The Nginx Controller 3.x before 3.7.0 agent configuration file /etc/controller-agent/agent.conf is world readable with current permission bits set to 644.
Credit: f5sirt@f5.com
Affected Software | Affected Version | How to fix |
---|---|---|
F5 Nginx Controller | >=3.0.0<3.7.0 |
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CVE-2021-23021 is classified as a medium severity vulnerability due to the exposure of sensitive configuration data.
To fix CVE-2021-23021, change the permissions of the agent configuration file to restrict access, setting it to 600.
The potential risks include unauthorized access to sensitive configuration information which could lead to further exploitation.
CVE-2021-23021 affects Nginx Controller versions from 3.0.0 to 3.6.0.
Yes, upgrading to Nginx Controller version 3.7.0 or later resolves the vulnerability.