CVE-2023-21604 : Exploit Details and Defense Strategies

This CVE record pertains to a Stack-based Buffer Overflow vulnerability in Adobe Acrobat Reader that could allow arbitrary code execution.

Understanding CVE-2023-21604

This section delves into the specifics of the CVE-2023-21604 vulnerability.

What is CVE-2023-21604?

The CVE-2023-21604 vulnerability affects Adobe Acrobat Reader versions 22.003.20282 and earlier, 22.003.20281 and earlier, and 20.005.30418 and earlier. It is a Stack-based Buffer Overflow vulnerability that can lead to arbitrary code execution within the context of the current user. Exploiting this vulnerability requires user interaction as the victim must open a malicious file.

The Impact of CVE-2023-21604

The impact of CVE-2023-21604 is significant, with a CVSS base score of 7.8, indicating a high severity level. The vulnerability has a high impact on confidentiality, integrity, and availability, making it crucial to address promptly.

Technical Details of CVE-2023-21604

This section provides technical insights into CVE-2023-21604.

Vulnerability Description

The CVE-2023-21604 vulnerability is categorized as a Stack-based Buffer Overflow (CWE-121), posing a risk of arbitrary code execution within Adobe Acrobat Reader.

Affected Systems and Versions

The vulnerability affects Adobe Acrobat Reader versions 22.003.20282, 22.003.20281, and 20.005.30418, with arbitrary code execution potential under specific conditions.

Exploitation Mechanism

Exploiting CVE-2023-21604 requires user interaction, where a malicious file needs to be opened by the victim to trigger the Stack-based Buffer Overflow.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2023-21604 is crucial for enhancing cybersecurity measures.

Immediate Steps to Take

Users are advised to update Adobe Acrobat Reader to the latest version available, implementing security patches to address the vulnerability promptly.

Long-Term Security Practices

Maintaining a proactive approach to cybersecurity, such as regular software updates, user awareness training, and robust security protocols, can help prevent similar vulnerabilities in the future.

Patching and Updates

Adobe has released patches to address the CVE-2023-21604 vulnerability. It is essential for users to apply these patches promptly to secure their systems and prevent potential exploitation of the vulnerability.