CVE-2020-27861: NETGEAR Orbi UA_Parser Host Name Command Injection Remote Code Execution Vulnerability
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 UAParser 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. Was ZDI-CAN-11076.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR Orbi routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the UAParser 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2020-27861?
CVE-2020-27861 is classified as a high severity vulnerability allowing unauthenticated remote code execution.
How do I fix CVE-2020-27861?
To fix CVE-2020-27861, update the firmware of your NETGEAR Orbi routers and extenders to the latest version provided by NETGEAR.
What devices are affected by CVE-2020-27861?
CVE-2020-27861 affects several NETGEAR Orbi models and associated firmware versions, including Orbi RBK series routers.
Can CVE-2020-27861 be exploited remotely?
Yes, CVE-2020-27861 can be exploited remotely by network-adjacent attackers without authentication.
What type of vulnerability is CVE-2020-27861?
CVE-2020-27861 is a command injection vulnerability in the UA_Parser utility within NETGEAR Orbi routers.