CVE-2022-27643: (Pwn2Own) NETGEAR R6700v3 upnpd Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.12010.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15692.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of root.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2022-27643?
CVE-2022-27643 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 routers.
What is the severity of CVE-2022-27643?
The severity of CVE-2022-27643 is high with a CVSS score of 8.8.
Is authentication required to exploit CVE-2022-27643?
No, authentication is not required to exploit CVE-2022-27643.
How can I fix CVE-2022-27643?
To fix CVE-2022-27643, it is recommended to apply the necessary security updates provided by NETGEAR.
Where can I find more information about CVE-2022-27643?
You can find more information about CVE-2022-27643 in the security advisory by NETGEAR and the advisory by Zero Day Initiative.