CVE-2023-2875 : What You Need to Know

This article provides detailed information about CVE-2023-2875, including its description, impact, technical details, and mitigation strategies.

Understanding CVE-2023-2875

CVE-2023-2875 pertains to a vulnerability found in eScan Antivirus 22.0.1400.2443, specifically affecting the function 0x22E008u in the library PROCOBSRVESX.SYS of the component IoControlCode Handler. The vulnerability leads to a null pointer dereference, allowing for potential exploitation on the local host.

What is CVE-2023-2875?

The vulnerability in eScan Antivirus 22.0.1400.2443 allows for a null pointer dereference when manipulating unknown data. An attacker could exploit this issue to launch attacks locally. The exploit for this vulnerability has been publicly disclosed, with the identifier VDB-229854 assigned to it.

The Impact of CVE-2023-2875

With a CVSS base score of 5.5 (Medium severity), CVE-2023-2875 poses a risk of high availability impact. The vulnerability could be exploited by an attacker to cause a null pointer dereference, potentially leading to system instability or crashes.

Technical Details of CVE-2023-2875

The vulnerability, classified under CWE-476 (NULL Pointer Dereference), resides in the IoControlCode Handler component of eScan Antivirus version 22.0.1400.2443.

Vulnerability Description

The vulnerability in eScan Antivirus allows for a null pointer dereference, enabling attackers to exploit the issue by manipulating certain data, potentially resulting in system compromise.

Affected Systems and Versions

Affected Systems:

Vendor: eScan
Product: Antivirus
Version: 22.0.1400.2443

Exploitation Mechanism

Attackers can exploit CVE-2023-2875 by leveraging the vulnerability in the IoControlCode Handler component, using unknown data to trigger a null pointer dereference and potentially compromising the affected system.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-2875, immediate steps should be taken along with the implementation of long-term security practices.

Immediate Steps to Take

Users should apply relevant security patches provided by the vendor promptly to address the vulnerability in eScan Antivirus 22.0.1400.2443.
Employ network segmentation and restrict access to vulnerable systems to reduce the attack surface.
Monitor network traffic for any signs of exploitation attempts related to this vulnerability.

Long-Term Security Practices

Regularly update antivirus software to stay protected against known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses in the environment.
Educate users about safe browsing habits and potential risks associated with malicious attacks.

Patching and Updates

Stay informed about security updates and patches released by eScan for the Antivirus product. Regularly check for new advisories and apply updates promptly to mitigate the risk of exploitation related to CVE-2023-2875.