RCE in Liquidvpn
CVE-2018-18856
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.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.016 (73.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Liquidvpn
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- cve@mitre.org (mailing-list, Exploit, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-18856?
- CVE-2018-18856 is a high-severity vulnerability in Liquidvpn, classified under OS Command Injection. CVSS score: 7.8/10. Published 2018-11-20.
- How severe is CVE-2018-18856?
- High severity. CVSS v3 base score is 7.8 out of 10.