CVE-2018-18856 Command injection in n/a
Local attackers can execute arbitrary OS commands as root via an unprotected XPC service in the LiquidVPN macOS client, leading to privilege escalation.
- 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-2018-18856?
CVE-2018-18856 is a high-severity command injection vulnerability in n/a, published on 20 Nov 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Multiple local privilege escalation vulnerabilities have been identified in the LiquidVPN client through 1.37 for macOS. An attacker can communicate with an unprotected XPC service and directly execute arbitrary OS commands as root or load a potentially malicious kernel extension because com.smr.liquidvpn.OVPNHelper uses the system function to execute the "openvpncmd" parameter as a shell command.
Weakness: CWE-78
Which versions are affected by CVE-2018-18856?
It affects 1 product.
Products include Liquidvpn Liquidvpn.
How do I fix CVE-2018-18856?
No fix has been published for CVE-2018-18856 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2018-18856 being exploited?
There is no known exploitation of CVE-2018-18856 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-xmgg-82f8-jrc5.