Path traversal in OMRON NJ/NX series

1) Path traversal

EUVDB-ID: #VU87209

Risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2024-27121

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote administrator can send a specially crafted HTTP request and read arbitrary files on the system, leading to arbitrary code execution.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Machine Automation Controller NJ101: 1.64.03

Machine Automation Controller NJ301: 1.64.00

Machine Automation Controller NJ501-1: 1.64.03

Machine Automation Controller NJ501: 1.64.00

Machine Automation Controller NJ501-4: 1.64.00

Machine Automation Controller NJ501-5300: 1.64.00

Machine Automation Controller NJ501-R: 1.64.00

Machine Automation Controller NX1P2: 1.64.00

Machine Automation Controller NX102: 1.64.00

Machine Automation Controller NX502: 1.65.01

Machine Automation Controller NX701: 1.35.00

Machine Automation Controller NX-EIP201: 1.00.01

External links

http://jvn.jp/en/vu/JVNVU95852116/index.html
http://www.fa.omron.co.jp/product/security/assets/pdf/en/OMSR-2024-001_en.pdf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.