#VU99239 Missing Authentication for Critical Function in M-Bus Metering Gateway CMe3100 - CVE-2024-49399

Vulnerability identifier: #VU99239

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-49399

CWE-ID: CWE-306

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
M-Bus Metering Gateway CMe3100
Hardware solutions / Firmware

Vendor: Elvaco

Description

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

The vulnerability exists due to missing authentication for critical function. A remote attacker can use commands without providing a password and gain access to private data.

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

Vulnerable software versions

M-Bus Metering Gateway CMe3100: 1.12 1

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External links
https://www.cisa.gov/news-events/ics-advisories/icsa-24-291-01

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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 Internet.

Is there known malware, which exploits this vulnerability?

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