CVE-2016-9566 Path traversal in n/a
Local attackers in the nagios group can gain root privileges via a symlink attack on the log file, potentially escalated by remote attackers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-9566?
CVE-2016-9566 is a high-severity path traversal vulnerability in n/a, published on 15 Dec 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
base/logging.c in Nagios Core before 4.2.4 allows local users with access to an account in the nagios group to gain root privileges via a symlink attack on the log file. NOTE: this can be leveraged by remote attackers using CVE-2016-9565.
Which versions are affected by CVE-2016-9566?
It affects 1 product.
Products include Nagios Nagios.
How do I fix CVE-2016-9566?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2016-9566 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-9566 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-9332-j4wp-2xcq, UBUNTU-CVE-2016-9566.