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DETECTION OVERVIEW
Risk Factors
An unauthenticated attacker with network access to an affected client can easily run malicious commands with root privileges. An attacker can gain complete control of a device and entry into your network for further attacks.
Category
The Red Hat DHCP client package includes a NetworkManager integration script, which is a daemon for managing network connections and configurations. NetworkManager is also susceptible to command injection in specific Red Hat versions. An attacker with local network access, or control of a malicious DHCP server, spoofs a DHCP response with a malformed Web Proxy Auto-Discovery (WPAD) parameter (option 252) to an affected client. This malformed parameter enables the attacker to inject malicious shell commands that run root-privileged arbitrary commands on the affected client.
Install relevant patches for affected software versions
Disable or remove the affected NetworkManager integration script; however, disabling the script can interfere with DHCP functionality relating to services such as Network Time Protocol (NTP) or Network Information Service (NIS)
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