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CVE-2018-10900 is a local privilege-escalation vulnerability in NetworkManager's VPNC plugin (networkmanager-vpnc) before version 1.2.6. Insufficient neutralization of newline characters in VPN configuration data permits injection of an additional Password helper parameter into the configuration passed to vpnc. An attacker can use the injected helper value to cause execution of an arbitrary command with root privileges.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Metasploit module implementing a local privilege escalation exploit for the Network Manager VPNC plugin on Linux (CVE-2018-10900). The exploit abuses a newline injection vulnerability in the VPNC username field to inject a 'Password helper' directive, causing Network Manager to execute an attacker-controlled payload as root when a VPN connection is started. The module is written in Ruby and leverages Metasploit's local exploit and payload generation capabilities. It requires the nmcli utility and a writable directory (default: /tmp) on the target. The exploit is operational and provides root access by executing a payload (default: meterpreter reverse shell) as root. The module is well-structured, with clear separation of setup, exploitation, and cleanup phases, and is suitable for use in post-exploitation scenarios where local access is already obtained.
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