CVE-2022-47388 : Security Advisory and Response

This CVE-2022-47388 affects multiple products from CODESYS due to a stack-based out-of-bounds write vulnerability in the CmpTraceMgr Component. An authenticated remote attacker could exploit this issue to trigger denial-of-service, memory corruption, or even execute remote code.

Understanding CVE-2022-47388

This section provides an overview of the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2022-47388?

CVE-2022-47388 involves a stack-based out-of-bounds write vulnerability in CODESYS products, allowing an authenticated attacker to manipulate the stack, leading to severe consequences such as denial-of-service, memory overwriting, or remote code execution.

The Impact of CVE-2022-47388

The impact of this vulnerability is rated as high, with a CVSS base score of 8.8. Attackers can exploit this flaw remotely over the network with low privileges required, potentially causing significant availability, confidentiality, and integrity impacts.

Technical Details of CVE-2022-47388

The following technical details shed light on the vulnerability's specifics, affected systems, and the exploitation mechanism.

Vulnerability Description

An authenticated, remote attacker may use a stack-based out-of-bounds write vulnerability in the CmpTraceMgr Component of multiple CODESYS products to write data into the stack, leading to a denial-of-service condition, memory overwriting, or remote code execution.

Affected Systems and Versions

The affected products include various versions of CODESYS Control RTE, CODESYS Safety SIL2 Runtime Toolkit, CODESYS HMI, and more. Systems with versions less than V3.5.19.0 or V4.8.0.0 are vulnerable to exploitation.

Exploitation Mechanism

The vulnerability can be exploited remotely with low attack complexity and user interaction required. Attackers can trigger high availability impact, leading to severe consequences like memory corruption and remote code execution.

Mitigation and Prevention

In response to CVE-2022-47388, it is crucial to take immediate steps to secure affected systems and implement long-term security practices.

Immediate Steps to Take

Update CODESYS products to versions V3.5.19.0 or higher for affected systems.
Monitor network traffic for any suspicious activity that could indicate an ongoing exploitation attempt.

Long-Term Security Practices

Regularly apply security patches and updates provided by CODESYS to mitigate known vulnerabilities.
Conduct regular security assessments and penetration testing to identify and address potential weaknesses in the system.

Patching and Updates

Stay informed about the latest security advisories from CODESYS and promptly apply patches to ensure the protection of your systems.