Vulnerability Monitor

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CVE-2023-40478

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.

Published

2024-05-03T03:15:20.650

Last Modified

2025-01-03T16:34:16.067

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

Weaknesses

Type: Secondary
CWE-121
Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	netgear	rax30_firmware	< 1.0.10.94	Yes
Hardware	netgear	rax30	-	No

References

https://kb.netgear.com/000065649/Security-Advisory-for-Post-authentication-Buffer-Overflow-on-the-RAX30-PSV-2023-0002 Vendor Advisory ([email protected])
https://www.zerodayinitiative.com/advisories/ZDI-23-1163/ Third Party Advisory ([email protected])
https://kb.netgear.com/000065649/Security-Advisory-for-Post-authentication-Buffer-Overflow-on-the-RAX30-PSV-2023-0002 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.zerodayinitiative.com/advisories/ZDI-23-1163/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)