CVE-2023-0321 Explained : Impact and Mitigation

This CVE refers to the disclosure of sensitive information on Campbell Scientific products, particularly dataloggers CR6, CR300, CR800, CR1000, and CR3000, which may allow an attacker to access and manipulate configuration files containing sensitive network information.

Understanding CVE-2023-0321

Campbell Scientific dataloggers, including CR6, CR300, CR800, CR1000, and CR3000, have potential vulnerabilities that could be exploited by an attacker to access and modify configuration files.

What is CVE-2023-0321?

The CVE-2023-0321 vulnerability involves the ability of an attacker to download configuration files from the mentioned Campbell Scientific dataloggers that may contain sensitive information about the internal network. The default configuration of these devices enables HTTP and PakBus, making it possible for attackers to exploit vulnerabilities via the PakBus port.

The Impact of CVE-2023-0321

The exploitation of this vulnerability could lead to unauthorized access to sensitive network information, allowing attackers to download, modify, and upload new configuration files. The confidentiality and integrity of the affected systems are at high risk due to this CVE.

Technical Details of CVE-2023-0321

The vulnerability allows attackers to compromise the security of Campbell Scientific dataloggers with the default configurations that have HTTP and PakBus enabled.

Vulnerability Description

Attackers can exploit the vulnerability to access configuration files containing sensitive network information.

Affected Systems and Versions

Campbell Scientific CR6: All versions affected
Campbell Scientific CR300: All versions affected
Campbell Scientific CR800: All versions affected
Campbell Scientific CR1000: All versions affected
Campbell Scientific CR3000: All versions affected

Exploitation Mechanism

Exploiting the CVE-2023-0321 vulnerability involves downloading, modifying, and uploading configuration files through the PakBus port, enabled by default in the mentioned dataloggers.

Mitigation and Prevention

It is essential to take immediate steps to address the CVE-2023-0321 vulnerability and prevent potential attacks on Campbell Scientific products.

Immediate Steps to Take

Disable or secure HTTP through username/password authentication and secure PakBus using PakBus encryption key and/or PakBus/TCP password. Campbell Scientific provides a guide with instructions to enhance the security of all Internet connectivity for the affected devices.

Long-Term Security Practices

Regularly update and monitor security configurations, implement strong authentication mechanisms, and restrict access to sensitive information on Campbell Scientific dataloggers.

Patching and Updates

Apply any security patches or updates released by Campbell Scientific to address the CVE-2023-0321 vulnerability and enhance the overall security of the affected products.