PT-2019-12868 · Openvpn+1 · Openvpn+1
Rich Mirch
·
Published
2019-07-11
·
Updated
2020-08-24
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CVE-2019-12578
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Private Internet Access (PIA) VPN Client version v82 for Linux
Description
A vulnerability could allow an authenticated, local attacker to run arbitrary code with elevated privileges. The issue involves the openvpn launcher.64 binary, which is setuid root and executes /opt/pia/openvpn-64/openvpn, passing command line parameters. The
--route-pre-down parameter can be exploited to execute an arbitrary script or program when OpenVPN exits, by passing a malicious script or binary to this option. The --script-security parameter must also be passed to enable this action, and it is not currently disabled.Recommendations
For Private Internet Access (PIA) VPN Client version v82 for Linux, as a temporary workaround, consider disabling the
openvpn launcher.64 binary or restricting its use until a patch is available. Avoid using the --route-pre-down parameter in the affected OpenVPN setup until the issue is resolved. Restrict access to the /opt/pia/openvpn-64/openvpn executable to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Argument Injection
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Weakness Enumeration
Related Identifiers
Affected Products
Openvpn
Private Internet Access (Pia) Vpn Client