Vulnerability Details CVE-2021-34980
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the setupwizard.cgi page. When parsing the SOAP_LOGIN_TOKEN environment variable, 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 execute code in the context of root. Was ZDI-CAN-14107.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.009
EPSS Ranking 74.2%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 8.3
References
- https://kb.netgear.com/000064262/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0150?article=000064262
- https://www.zerodayinitiative.com/advisories/ZDI-21-1242/
- https://kb.netgear.com/000064262/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Routers-PSV-2021-0150?article=000064262
- https://www.zerodayinitiative.com/advisories/ZDI-21-1242/
Products affected by CVE-2021-34980
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cpe:2.3:h:netgear:r6260:-
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cpe:2.3:o:netgear:r6260_firmware:1.1.0.78_1.0.1