A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v82 for Linux could allow an authenticated, local attacker to run arbitrary code with elevated privileges. The openvpn_launcher.64 binary is setuid root. This binary executes /opt/pia/openvpn-64/openvpn, passing the parameters provided from the command line. Care was taken to programmatically disable potentially dangerous openvpn parameters; however, the --route-pre-down parameter can be used. This parameter accepts an arbitrary path to a script/program to be executed when OpenVPN exits. The --script-security parameter also needs to be passed to allow for this action to be taken, and --script-security is not currently in the disabled parameter list. A local unprivileged user can pass a malicious script/binary to the --route-pre-down option, which will be executed as root when openvpn is stopped.
References
| Link | Resource |
|---|---|
| https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12578.txt | Exploit Third Party Advisory |
| https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12578.txt | Exploit Third Party Advisory |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 04:23
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12578.txt - Exploit, Third Party Advisory |
Information
Published : 2019-07-11 20:15
Updated : 2024-11-21 04:23
NVD link : CVE-2019-12578
Mitre link : CVE-2019-12578
CVE.ORG link : CVE-2019-12578
JSON object : View
Products Affected
linux
- linux_kernel
londontrustmedia
- private_internet_access_vpn_client
CWE
CWE-88
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')