Vulnerability Description
NETGEAR RAX30 Telnet CLI passwd Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the telnet CLI service, which listens on TCP port 23. The issue results from the lack of proper validation of 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-20009.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Netgear | Rax30 Firmware | < 1.0.10.94 |
| Netgear | Rax30 | - |
Related Weaknesses (CWE)
References
- https://kb.netgear.com/000065649/Security-Advisory-for-Post-authentication-BuffeVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-23-1163/Third Party Advisory
- https://kb.netgear.com/000065649/Security-Advisory-for-Post-authentication-BuffeVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-23-1163/Third Party Advisory
FAQ
What is CVE-2023-40478?
CVE-2023-40478 is a vulnerability with a CVSS score of 6.8 (MEDIUM). NETGEAR RAX30 Telnet CLI passwd Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installation...
How severe is CVE-2023-40478?
CVE-2023-40478 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-40478?
Check the references section above for vendor advisories and patch information. Affected products include: Netgear Rax30 Firmware, Netgear Rax30.