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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.016 (75.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
Weakness classification (CWE)
References
- packetstormsecurity.com/files/150137/LiquidVPN-For-macOS-1.3.7-Privilege-Escala… (Exploit, VDB Entry, Third Party Advisory)
- www.exploit-db.com/exploits/45782/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- seclists.org/fulldisclosure/2018/Nov/1 (mailing-list, Exploit, 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.