CVE-2023-33868 : Security Advisory and Response

A detailed overview of CVE-2023-33868 involving vulnerabilities in PiiGAB M-Bus SoftwarePack affecting version 900S.

Understanding CVE-2023-33868

This CVE involves an improper restriction of excessive authentication attempts in the M-Bus SoftwarePack by PiiGAB, potentially allowing attackers to perform brute force attacks on HTTP basic authentication.

What is CVE-2023-33868?

The vulnerability in PiiGAB M-Bus SoftwarePack, version 900S, allows unlimited login attempts, enabling attackers to launch brute force attacks on HTTP basic authentication.

The Impact of CVE-2023-33868

With a CVSS base score of 5.9 and a medium severity level, this vulnerability poses a risk of high confidentiality impact due to improper restriction of authentication attempts.

Technical Details of CVE-2023-33868

This section provides in-depth technical details of the vulnerability.

Vulnerability Description

The flaw allows attackers to conduct brute force attacks on HTTP basic authentication due to the lack of limitation on login attempts.

Affected Systems and Versions

PiiGAB M-Bus SoftwarePack version 900S is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by making unlimited login attempts, compromising the security of HTTP basic authentication.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2023-33868.

Immediate Steps to Take

To minimize the risk, users should follow these immediate steps:

Follow the least-privilege user principle
Set unique and secure passwords for authentication
Minimize network exposure and restrict Internet access
Isolate control system networks behind firewalls
Use secure methods like VPNs for remote access

Long-Term Security Practices

Implement long-term security practices such as maintaining updated software, conducting regular security audits, and educating users on secure practices.

Patching and Updates

PiiGAB has released updated software to address the vulnerabilities. Users are encouraged to install the new update from the web UI on their gateway or download it from Piigab.se or Piigab.com.