#VU78017 Improper Restriction of Excessive Authentication Attempts in M-Bus SoftwarePack 900S - CVE-2023-33868

Vulnerability identifier: #VU78017

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-33868

CWE-ID: CWE-307

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
M-Bus SoftwarePack 900S
Client/Desktop applications / Other client software

Vendor: PiiGAB

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the number of login attempts is not limited. A remote attacker can perform a brute-force attack on HTTP basic authentication.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

M-Bus SoftwarePack 900S: All versions

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External links
https://www.cisa.gov/news-events/ics-advisories/icsa-23-187-01

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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.