(Pwn2Own) NETGEAR RAX30 soap_serverd Stack-based Buffer Overflow Authentication Bypass Vulnerability
Vulnerability Details
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the soap_serverd binary. When parsing the request headers, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to bypass authentication on the system.
Additional Details
NETGEAR has issued an update to correct this vulnerability. More details can be found at:
https://kb.netgear.com/000065619/Security-Advisory-for-Multiple-Vulnerabilities-on-the-RAX30-PSV-2022-0348
Disclosure Timeline
- 2023-01-24 - Vulnerability reported to vendor
- 2023-05-01 - Coordinated public release of advisory
Credit
Claroty Research - Vera Mens, Noam Moshe, Uri Katz, Sharon Brizinov
