CVE-2021-40783 : Security Advisory and Response

Adobe Premiere Rush version 1.5.16 (and earlier) is affected by a memory corruption vulnerability due to insecure handling of a malicious WAV file, potentially resulting in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability.

Understanding CVE-2021-40783

Adobe Premiere Rush WAV File Memory Corruption Remote Code Execution

What is CVE-2021-40783?

Adobe Premiere Rush versions 1.5.16 and earlier are vulnerable to memory corruption via a malicious WAV file.
Exploiting this vulnerability may lead to arbitrary code execution on the user's system.
The attacker needs user interaction to exploit this security flaw.

The Impact of CVE-2021-40783

CVSS Base Score: 7.8 (High)
Attack Vector: Local
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Confidentiality, Integrity, and Availability Impact: High
Scope: Unchanged
This vulnerability poses a significant risk as it allows an attacker to execute arbitrary code on the affected system.

Technical Details of CVE-2021-40783

Adobe Premiere Rush version 1.5.16 (and earlier) is susceptible to the following:

Vulnerability Description

The vulnerability is attributed to a memory corruption issue due to the improper handling of malicious WAV files.
This flaw can be exploited to achieve remote code execution in the context of the current user.

Affected Systems and Versions

Affected Product: Premiere Rush
Vendor: Adobe
Vulnerable Versions:
Premiere Rush 1.5.16 and earlier versions
Unspecified custom versions

Exploitation Mechanism

The vulnerability requires user interaction to entice victims into processing a specially crafted WAV file, triggering the memory corruption.

Mitigation and Prevention

To address CVE-2021-40783, consider the following steps:

Immediate Steps to Take

Update Adobe Premiere Rush to the latest version.
Exercise caution when opening WAV files, especially from untrusted sources.

Long-Term Security Practices

Implement strong user training on identifying and handling suspicious files.
Regularly update software and security patches to protect against known vulnerabilities.

Patching and Updates

Adobe has released security updates to address this vulnerability.
Apply the latest patches promptly to mitigate the risk of exploitation.