CVE-2023-24304 : Exploit Details and Defense Strategies

This CVE involves improper input validation in the PDF.dll plugin of IrfanView v4.60, which can allow attackers to execute arbitrary code by opening a maliciously crafted PDF file. It was published by MITRE on March 28, 2023.

Understanding CVE-2023-24304

This section will delve into the details of CVE-2023-24304, outlining its impact, technical aspects, and mitigation strategies.

What is CVE-2023-24304?

The vulnerability in question arises from a flaw in the PDF.dll plugin of IrfanView v4.60, where insufficient input validation occurs. This oversight can be exploited by malicious actors to run arbitrary code on a system by tricking a user into opening a specially crafted PDF file.

The Impact of CVE-2023-24304

The impact of this CVE is significant as it allows attackers to execute arbitrary code on a vulnerable system. This can lead to various malicious activities such as data theft, system compromise, and unauthorized access to sensitive information.

Technical Details of CVE-2023-24304

In this section, we will explore the technical aspects of CVE-2023-24304, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from improper input validation in the PDF.dll plugin of IrfanView v4.60, enabling attackers to inject and execute malicious code.

Affected Systems and Versions

The issue affects IrfanView v4.60 with the PDF.dll plugin. Users operating this specific version of IrfanView are vulnerable to this exploit.

Exploitation Mechanism

To exploit this vulnerability, an attacker creates a specially crafted PDF file and convinces a user to open it using IrfanView v4.60. Once opened, the malicious PDF triggers the execution of arbitrary code on the victim's system, giving the attacker unauthorized access.

Mitigation and Prevention

As a precautionary measure, organizations and users are advised to take immediate steps and implement long-term security practices to mitigate the risks posed by CVE-2023-24304.

Immediate Steps to Take

Disable PDF.dll Plugin: Consider disabling the PDF.dll plugin within IrfanView v4.60 to prevent exploitation via this vulnerability.

Exercise Caution: Refrain from opening PDF files from untrusted or unknown sources to avoid falling victim to malicious attacks.

Long-Term Security Practices

Regular Software Updates: Ensure timely and regular updates for IrfanView and its plugins to patch known vulnerabilities and enhance security.

Security Awareness: Educate users about the risks associated with opening files from unfamiliar sources and promote safe browsing habits.

Patching and Updates

Stay informed about any security patches or updates released by IrfanView to address the vulnerability in the PDF.dll plugin. Promptly apply these patches to safeguard your system against potential exploitation.