CVE-2021-34978: NETGEAR R6260 setupwizard.cgi Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.781.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. A crafted SOAP request can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13511.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. A crafted SOAP request can trigger an overflow of a fixed-length stack-based 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-2021-34978?
CVE-2021-34978 is a vulnerability that allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 routers.
How severe is CVE-2021-34978?
CVE-2021-34978 has a severity score of 8.8, which is considered high.
How can an attacker exploit CVE-2021-34978?
An attacker can exploit CVE-2021-34978 by sending a crafted SOAP request to the setupwizard.cgi page.
Is authentication required to exploit CVE-2021-34978?
No, authentication is not required to exploit CVE-2021-34978.
Where can I find more information about CVE-2021-34978?
You can find more information about CVE-2021-34978 in the reference links provided: [link1](https://kb.netgear.com/000064258/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-DSL-Modem-Routers-and-Access-Points-PSV-2021-0151-and-PSV-2021-0170?article=000064258) and [link2](https://www.zerodayinitiative.com/advisories/ZDI-21-1240/).