CVE-2023-1643 : Security Advisory and Response

This CVE-2023-1643 vulnerability pertains to a denial of service issue found in IObit Malware Fighter 9.4.0.776, specifically in the IOCTL Handler component of the ImfHpRegFilter.sys library.

Understanding CVE-2023-1643

This section will delve into the details of what CVE-2023-1643 entails, its impact, technical aspects, as well as mitigation and prevention strategies.

What is CVE-2023-1643?

The vulnerability identified as CVE-2023-1643 affects IObit Malware Fighter version 9.4.0.776. It is characterized as a denial of service vulnerability within the ImfHpRegFilter.sys library's IOCTL Handler component. The exploit requires local access and can potentially lead to service disruption.

The Impact of CVE-2023-1643

With a CVSSv3.1 base score of 5.5, classified as 'MEDIUM' severity, CVE-2023-1643 poses a threat due to its potential for denial of service attacks. Attackers can take advantage of this vulnerability to disrupt services, impacting system availability.

Technical Details of CVE-2023-1643

Within this section, we will explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in question resides in the function 0x8001E000/0x8001E004/0x8001E018/0x8001E01C/0x8001E024/0x8001E040 of the ImfHpRegFilter.sys library's IOCTL Handler component. Through manipulation of unspecified data, an attacker can trigger a denial of service condition, necessitating local access for exploitation.

Affected Systems and Versions

IObit Malware Fighter version 9.4.0.776 is confirmed to be impacted by CVE-2023-1643. Users utilizing this specific version of the software may be vulnerable to exploitation through the aforementioned denial of service vulnerability.

Exploitation Mechanism

In order to leverage the CVE-2023-1643 vulnerability, threat actors must have local access to the targeted system. By manipulating certain functions within the ImfHpRegFilter.sys library's IOCTL Handler component, attackers can disrupt services, leading to a denial of service scenario.

Mitigation and Prevention

This segment will focus on immediate steps to take, long-term security practices, as well as the significance of applying patches and updates.

Immediate Steps to Take

To mitigate the risks associated with CVE-2023-1643, individuals and organizations are advised to restrict unauthorized access to vulnerable systems, closely monitor network activity for suspicious behavior, and implement appropriate security measures to prevent exploitation.

Long-Term Security Practices

Implementing robust security protocols, conducting regular security assessments, and staying informed about the latest vulnerabilities and patches are crucial for enhancing long-term security posture and reducing the likelihood of successful attacks.

Patching and Updates

IObit users are encouraged to apply patches or updates provided by the vendor promptly. Keeping software and systems up-to-date with the latest security patches helps in addressing known vulnerabilities and fortifying defenses against potential exploits.

By understanding the nature of CVE-2023-1643 and adopting proactive security measures, organizations can bolster their resilience against threats and safeguard their systems from exploitation.