ZDI-21-1116: NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of the soap_block_table file. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| NETGEAR R7800 firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-21-1116?
ZDI-21-1116 is classified as a critical vulnerability due to its potential for unauthorized arbitrary code execution.
How do I fix ZDI-21-1116?
To fix ZDI-21-1116, users should update their NETGEAR R7800 routers to the latest firmware version provided by NETGEAR.
Who is affected by ZDI-21-1116?
ZDI-21-1116 affects NETGEAR R7800 routers with vulnerable firmware versions.
Can ZDI-21-1116 be exploited remotely?
Yes, ZDI-21-1116 can be exploited remotely by attackers on the same network segment without authentication.
What type of vulnerability is ZDI-21-1116?
ZDI-21-1116 is a pre-authentication buffer overflow vulnerability in the NETGEAR R7800 router.
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