CVE-2020-17424 : Exploit Details and Defense Strategies

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of EZI files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-11247.

Understanding CVE-2020-17424

This CVE-2020-17424 affects Foxit Studio Photo version 3.6.6.922.

What is CVE-2020-17424?

CVE-2020-17424 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit Studio Photo 3.6.6.922. It requires user interaction to exploit by visiting a malicious page or opening a malicious file.

The Impact of CVE-2020-17424

The impact of this vulnerability is rated as high, with a CVSS base score of 7.8. It can lead to high confidentiality, integrity, and availability impacts on the affected systems.

Technical Details of CVE-2020-17424

This section provides technical details of the vulnerability.

Vulnerability Description

The vulnerability is categorized as CWE-787: Out-of-bounds Write. It stems from the lack of proper validation of user-supplied data, allowing attackers to write past the end of an allocated structure.

Affected Systems and Versions

Product: Studio Photo
Vendor: Foxit
Version: 3.6.6.922

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Exploitation may require the target to visit a malicious page or open a malicious file.

Mitigation and Prevention

Protecting systems from CVE-2020-17424 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Foxit Studio Photo to a patched version.
Avoid visiting untrusted websites or opening suspicious files.
Implement security measures to prevent arbitrary code execution.

Long-Term Security Practices

Regularly update software and security patches.
Educate users on safe browsing habits and file handling.
Employ network and endpoint security solutions to detect and prevent attacks.

Patching and Updates

Ensure timely installation of security patches and updates provided by Foxit to address the vulnerability.