CVE-2023-40478

2024-05-0303:15:20

CWE-121

[email protected]

web.nvd.nist.gov

netgear rax30

telnet

buffer overflow

remote code execution

authentication bypass

cve-2023-40478

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.0005 Low

EPSS

Percentile

16.3%

JSON

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.

Affected configurations

Vulners

Node

netgearrax30Range≤1.0.9.92

CNA Affected

[
  {
    "vendor": "NETGEAR",
    "product": "RAX30",
    "versions": [
      {
        "version": "1.0.9.92_1",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]