#VU54583 Improper Authentication in SCT-40CM01SR and AT-40CM01SR - CVE-2021-20776

Vulnerability identifier: #VU54583

Vulnerability risk: Low

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

CVE-ID: CVE-2021-20776

CWE-ID: CWE-287

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
SCT-40CM01SR
Hardware solutions / Firmware
AT-40CM01SR
Hardware solutions / Firmware

Vendor: A-Stage

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote attacker on the local network can bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SCT-40CM01SR: All versions

AT-40CM01SR: All versions

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External links
https://jvn.jp/en/jp/JVN21636825/index.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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