#VU81413 Authentication bypass using an alternate path or channel in ACERA 1320 and ACERA 1310 - CVE-2023-42771

Vulnerability identifier: #VU81413

Vulnerability risk: Medium

CVSSv4.0: 6.2 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-42771

CWE-ID: CWE-288

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
ACERA 1320
Hardware solutions / Routers & switches, VoIP, GSM, etc
ACERA 1310
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: FURUNO SYSTEMS

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an authentication bypass using an alternate path. A remote attacker on the local network can download configuration files and/or log files, and upload configuration files and/or firmware.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ACERA 1320: 01.26

ACERA 1310: 01.26

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External links
https://www.furunosystems.co.jp/news/info/vulner20231002.html
https://jvn.jp/en/vu/JVNVU94497038/

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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.