CVE-2021-42270 : What You Need to Know

Adobe Animate version 21.0.9 and earlier are affected by an out-of-bounds write vulnerability, allowing arbitrary code execution. User interaction is required through a malicious BMP file.

Understanding CVE-2021-42270

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

What is CVE-2021-42270?

Adobe Animate versions 21.0.9 and below are susceptible to an out-of-bounds write flaw
Exploiting this issue can lead to arbitrary code execution within the user's context
A victim must open a malicious BMP file for successful exploitation

The Impact of CVE-2021-42270

CVSS Score: 7.8 (High)
Severity: High
Attack Complexity: Low
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Confidentiality, Integrity, and Availability Impact: High

Technical Details of CVE-2021-42270

Adobe Animate version 21.0.9 Out-Of-Bounds Write Vulnerability

Vulnerability Description

Out-of-bounds write vulnerability identified as CWE-787
Allows attackers to execute arbitrary code

Affected Systems and Versions

Product: Adobe Animate
Vendor: Adobe
Versions: 21.0.9 and earlier

Exploitation Mechanism

Requires user interaction to open a malicious BMP file

Mitigation and Prevention

Mitigation steps for Adobe Animate BMP File Parsing Vulnerability

Immediate Steps to Take

Update Adobe Animate to the latest version
Avoid opening BMP files from untrusted or unknown sources
Implement security best practices for file handling

Long-Term Security Practices

Regularly update software and security patches
Conduct security awareness training for users to avoid opening suspicious files

Patching and Updates

Apply patches provided by Adobe to fix the vulnerability