CVE-2023-0425 : What You Need to Know

This CVE record highlights a buffer overflow vulnerability in the global memory region of ABB Freelance controllers AC 700F and AC 900F. The vulnerability can be exploited by an attacker to cause the product to stop functioning or become inaccessible.

Understanding CVE-2023-0425

This section delves into the specifics of the CVE-2023-0425 vulnerability affecting ABB Freelance controllers AC 700F and AC 900F.

What is CVE-2023-0425?

The CVE-2023-0425 vulnerability is a Numeric Range Comparison Without Minimum Check vulnerability in the ABB Freelance controllers AC 700F and AC 900F. It impacts specific versions of these controllers, potentially leading to system disruption and unauthorized access.

The Impact of CVE-2023-0425

The impact of this vulnerability is rated as high, with a CVSS v3.1 base score of 8.6. An attacker can exploit this vulnerability over the network without the need for privileges, potentially causing a significant availability impact on the affected systems.

Technical Details of CVE-2023-0425

This section provides more technical insights into the CVE-2023-0425 vulnerability in ABB Freelance controllers AC 700F and AC 900F.

Vulnerability Description

The vulnerability involves a buffer overflow in the global memory region of the affected controllers, which could be exploited to disrupt the system's operation or render it inaccessible.

Affected Systems and Versions

The affected systems include ABB Freelance controllers AC 700F and AC 900F. Specific versions impacted include Freelance controllers AC 700F from 9.0;0 through V9.2 SP2, and Freelance controllers AC 900F through Freelance 2019 SP1 FP1.

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to execute arbitrary code, leading to buffer overflow in the memory region, potentially impacting the availability of the affected systems.

Mitigation and Prevention

To address and mitigate the CVE-2023-0425 vulnerability in ABB Freelance controllers AC 700F and AC 900F, certain steps can be taken.

Immediate Steps to Take

It is recommended to disable the webserver when not in use as a workaround for this vulnerability. ABB suggests disabling the webserver by default from Freelance 2019 SP1 FP1 onwards to help mitigate the risk.

Long-Term Security Practices

In the long term, maintaining up-to-date software versions and applying security patches provided by the vendor is crucial in ensuring the security of ABB Freelance controllers and other affected systems.

Patching and Updates

ABB has released an update to address the reported vulnerabilities in the affected product versions. Users are advised to apply the available patches and updates promptly to safeguard their systems against potential exploitation of CVE-2023-0425.