ZDI-21-1240: 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 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 | Affected Version | How to fix |
|---|---|---|
| NETGEAR R6260 firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-21-1240?
ZDI-21-1240 has a critical severity rating due to the potential for arbitrary code execution without authentication.
How do I fix ZDI-21-1240?
To mitigate ZDI-21-1240, update the NETGEAR R6260 router to the latest firmware version provided by NETGEAR.
Who is affected by ZDI-21-1240?
ZDI-21-1240 affects installations of NETGEAR R6260 routers that have not been patched.
Can ZDI-21-1240 be exploited remotely?
Yes, ZDI-21-1240 can be exploited by network-adjacent attackers without the need for authentication.
What kind of attack is ZDI-21-1240 related to?
ZDI-21-1240 is related to remote code execution vulnerabilities that exploit flaws in the router's setup wizard.
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- agent/references
- agent/severity
- agent/title
- agent/description
- agent/source
- agent/tags
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-1240
- alias/ZDI-CAN-13511
- alias/CVE-2021-34978
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/event
- agent/softwarecombine
- vendor/netgear
- canonical/netgear r6260 firmware