CVE-2021-23021 Information disclosure in Nginx Controller
Local attackers can read sensitive agent configuration files due to world-readable permissions, potentially exposing credentials or secrets.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-23021?
CVE-2021-23021 is a medium-severity vulnerability in Nginx Controller, published on 1 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-732
Which versions are affected by CVE-2021-23021?
It affects 1 product.
Products include F5 Nginx Controller.
How do I fix CVE-2021-23021?
No fix has been published for CVE-2021-23021 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-23021 being exploited?
There is no known exploitation of CVE-2021-23021 in the wild and no public exploit code.
Other vulnerabilities in Nginx Controller
Sources
Also known as GHSA-2ffq-2568-c74h.