Foxit Reader Vulnerability Could Lead to Arbitrary Code Execution

CVE-2024-49576

What is CVE-2024-49576?

CVE-2024-49576 is a significant vulnerability affecting Foxit Reader, a widely-used PDF reading software known for its robust features and functionality. This vulnerability arises from a use-after-free flaw in the way the software handles certain checkbox objects within PDF documents. When exploited, this vulnerability can allow malicious code execution, potentially leading to adverse outcomes for organizations that rely on Foxit Reader for document processing. An attacker must convince a user to open a specially crafted PDF or access a malicious website that utilizes the software's browser plugin, making it a considerable threat to organizational cybersecurity.

Technical Details

The vulnerability lies in the improper management of the CBF_Widget object in the Foxit Reader application, specifically version 2024.3.0.26795. A use-after-free vulnerability occurs when an application continues to use a pointer after the memory it points to has been freed. In this case, a crafted JavaScript embedded in a PDF file can trigger memory corruption, leading to arbitrary code execution. This flaw can be exploited either by opening a malicious PDF file or by visiting a specially designed webpage if the corresponding plugin is enabled in the user's browser.

Potential impact of CVE-2024-49576

1. Arbitrary Code Execution: The most critical impact of CVE-2024-49576 is the potential for attackers to execute arbitrary code on a victim's system. This could lead to a complete system compromise, allowing them to manipulate or control the affected device.

2. Data Breach Risks: Exploitation of this vulnerability can facilitate unauthorized access to sensitive data stored on the user's device. This could involve leakage of confidential documents, user credentials, and other sensitive information vital to the organization.

3. Spread of Malware: Successful exploitation can serve as a vector for distributing further malware or ransomware, endangering not only the compromised system but also the entire network to which it is connected. This could lead to a broader security incident within the organization, with potential data loss and operational disruptions.

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