Information dislcosure in Calsos CSDJ

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU50677

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-20653

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to application does not properly impose security restrictions. A remote authenticated attacker can obtain unauthorized historical data without access privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Calsos CSDJ-B: - - 01.08.00

Calsos CSDJ-H: - - 01.08.00

Calsos CSDJ-D: - - 01.08.00

Calsos CSDJ-A: - - 03.08.00

CPE2.3

• cpe:2.3:a:nec_corporation:calsos_csdj-b:*:*:*:*:*:*:*:*
• cpe:2.3:a:nec_corporation:calsos_csdj-b:01.08.00:*:*:*:*:*:*:*
• cpe:2.3:a:nec_corporation:calsos_csdj-h:*:*:*:*:*:*:*:*
• cpe:2.3:a:nec_corporation:calsos_csdj-h:01.08.00:*:*:*:*:*:*:*
• cpe:2.3:a:nec_corporation:calsos_csdj-d:*:*:*:*:*:*:*:*
• cpe:2.3:a:nec_corporation:calsos_csdj-d:01.08.00:*:*:*:*:*:*:*
• cpe:2.3:a:nec_corporation:calsos_csdj-a:*:*:*:*:*:*:*:*
• cpe:2.3:a:nec_corporation:calsos_csdj-a:03.08.00:*:*:*:*:*:*:*

External links

https://jvn.jp/en/jp/JVN87164507/index.html
https://jpn.nec.com/security-info/secinfo/nv21-006.html

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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