CVE-2021-42524 : Exploit Details and Defense Strategies

Adobe Animate version 21.0.9 (and earlier) is affected by an out-of-bounds write vulnerability that could lead to arbitrary code execution.

Understanding CVE-2021-42524

Adobe Animate BMP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability.

What is CVE-2021-42524?

An out-of-bounds write vulnerability in Adobe Animate could allow an attacker to execute arbitrary code in the context of the current user.
Exploitation requires the victim to open a malicious BMP file.

The Impact of CVE-2021-42524

CVSS Base Score: 7.8 (High Severity)
Attack Vector: Local
Attack Complexity: Low
User Interaction: Required
Confidentiality, Integrity, and Availability Impact: High

Technical Details of CVE-2021-42524

Adobe Animate Vulnerability.

Vulnerability Description

Out-of-bounds write vulnerability (CWE-787) in Adobe Animate.

Affected Systems and Versions

Adobe Animate versions <= 21.0.9.

Exploitation Mechanism

Attacker needs a victim to open a malicious BMP file to exploit the vulnerability.

Mitigation and Prevention

Protect your system from CVE-2021-42524.

Immediate Steps to Take

Update Adobe Animate to a non-vulnerable version.
Avoid opening BMP files from untrusted sources.

Long-Term Security Practices

Regularly update software and security patches.
Educate users about safe browsing habits.
Employ security solutions to detect and prevent such exploits.

Patching and Updates

Apply patches and updates provided by Adobe to mitigate the vulnerability.