CVE-2021-21068 : Security Advisory and Response

Adobe Creative Cloud Desktop Application version 5.3 (and earlier) is affected by a file handling vulnerability that could allow an attacker to cause arbitrary file overwriting. This vulnerability was made public on March 9, 2021.

Understanding CVE-2021-21068

This CVE involves a file handling vulnerability in Adobe Creative Cloud (desktop component) that could lead to arbitrary file overwriting with high impact.

What is CVE-2021-21068?

The CVE-2021-21068 vulnerability affects Adobe Creative Cloud Desktop Application version 5.3 and prior, enabling attackers to overwrite files by gaining physical access and user interaction.

The Impact of CVE-2021-21068

The impact of this vulnerability is rated as medium, with a CVSS base score of 6.1. It can result in high confidentiality, integrity, and availability impacts, requiring high privileges and user interaction for exploitation.

Technical Details of CVE-2021-21068

This section provides technical insights into the vulnerability.

Vulnerability Description

CVE-2021-21068 involves a file handling vulnerability in Adobe Creative Cloud Desktop Application version 5.3 and earlier, allowing attackers to perform arbitrary file overwriting with physical access and user interaction requirements.

Affected Systems and Versions

The vulnerability affects the Creative Cloud desktop component of Adobe, specifically versions 5.3 and earlier.

Exploitation Mechanism

Exploitation of CVE-2021-21068 requires physical access to the system and user interaction.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2021-21068.

Immediate Steps to Take

Users should update their Adobe Creative Cloud Desktop Application to the latest version to address this vulnerability. Additionally, restricting physical access to systems can reduce the risk of exploitation.

Long-Term Security Practices

Implementing strict file permission settings, user access controls, and security awareness training can enhance long-term security posture.

Patching and Updates

Regularly applying security patches and updates for Adobe Creative Cloud Desktop Application can help mitigate potential risks and ensure system security.