CVE-2021-21047 : Vulnerability Insights and Analysis

Adobe Photoshop versions 21.2.4 and 22.1.1 are affected by an Out-of-bounds Write vulnerability, allowing remote code execution. This article provides insights into the impact, technical details, and mitigation strategies.

Understanding CVE-2021-21047

This section delves into the vulnerability present in Adobe Photoshop versions 21.2.4 and 22.1.1, highlighting the severity of the issue.

What is CVE-2021-21047?

Adobe Photoshop versions 21.2.4 and 22.1.1 are susceptible to an Out-of-bounds Write vulnerability. Exploiting this flaw grants an unauthorized user the ability to execute arbitrary code within the current user's context.

The Impact of CVE-2021-21047

The CVE-2021-21047 vulnerability poses a severe threat as it could lead to remote code execution in affected versions of Adobe Photoshop. An attacker leveraging this flaw can execute malicious code without user consent, emphasizing the critical nature of this issue.

Technical Details of CVE-2021-21047

This section outlines the specific technical details of the vulnerability, affected systems, and how the exploit can be triggered.

Vulnerability Description

The vulnerability allows an unauthenticated attacker to perform an Out-of-bounds Write, potentially enabling the execution of arbitrary code. Users interacting with a malicious file are at risk of exploitation.

Affected Systems and Versions

Adobe Photoshop versions 21.2.4 and 22.1.1 are impacted by this vulnerability. Users utilizing these versions are at risk of remote code execution through exploitation of the Out-of-bounds Write flaw.

Exploitation Mechanism

Successful exploitation of CVE-2021-21047 requires an attacker to entice a victim into opening a specially crafted malicious file. Once opened, the attacker could achieve unauthorized code execution within the victim's user context.

Mitigation and Prevention

In response to CVE-2021-21047, immediate actions and long-term security measures are essential to protect systems from exploitation.

Immediate Steps to Take

Users of affected Adobe Photoshop versions should exercise caution when interacting with files, particularly from untrusted sources. Implementing file integrity checks and verifying file authenticity before opening are recommended.

Long-Term Security Practices

To enhance overall security posture, users are advised to keep software updated with the latest patches and security fixes. Regular security awareness training and cautious online behavior can help prevent falling victim to potential exploits.

Patching and Updates

Adobe has released security updates addressing the CVE-2021-21047 vulnerability. Users are strongly encouraged to apply the latest patches provided by Adobe to mitigate the risk of remote code execution.