CVE-2020-27861 – NETGEAR Orbi UA_Parser Host Name Command Injection Remote Code Execution Vulnerability

https://notcve.org/view.php?id=CVE-2020-27861

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Orbi 2.5.1.16 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UA_Parser utility. A crafted Host Name option in a DHCP request can trigger execution of a system call composed from a user-supplied string. An attacker can leverage this vulnerability to execute code in the context of root. • https://kb.netgear.com/000062507/Security-Advisory-for-Unauthenticated-Command-Injection-Vulnerability-on-Some-Extenders-and-Orbi-WiFi-Systems https://www.zerodayinitiative.com/advisories/ZDI-20-1430 • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •