PT-2024-02: Stack Buffer Overflow to Remote Code Execution (RCE) in Moxa NPort W2150a/W2250a

Vendor: MOXA Inc.

Product: NPort W2150a/W2250a

Vulnerable version: 2.3 and lower

Vulnerability type:

- CWE-121: Stack-based Buffer Overflow

Identifier (ID):

BDU:2024-01811

CVE-2024-1220

Vulnerability vector:

- Base vulnerability score (CVSSv3.1): CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

- Severity (CVSSv3.1): 8.2 (high)

- Base vulnerability score (CVSSv4.0): CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N

- Severity (CVSSv4.0): 8.8 (high)

Description:

The vulnerability was identified in Moxa NPort W2150a/W2250a (v.2.3 and lower). It is possible to execute OS commands on the device as a privileged user (root) due to a stack buffer overflow vulnerability. Exploitation of the vulnerability is possible for an unauthorized user by sending payloads to a web server.

Vulnerability status: Confirmed by vendor

Date of vulnerability detection: 26.10.2023

Recommendations: Update to version >2.3.

Additional information: Security Advisory

Researcher: Vladimir Razov (Positive Technologies)

Threatscape