CVE-2020-7604 : Exploit Details and Defense Strategies

A vulnerability in pulverizr through version 0.7.0 allows for the execution of arbitrary commands due to improper handling of user-controlled input.

Understanding CVE-2020-7604

This CVE involves a Command Injection vulnerability in the pulverizr software.

What is CVE-2020-7604?

The vulnerability in pulverizr up to version 0.7.0 enables attackers to execute arbitrary commands by manipulating the 'filename' variable within 'lib/job.js'. This flaw allows the construction of exec calls without proper sanitization, requiring the attacker to create a file with the same name as the attack command.

The Impact of CVE-2020-7604

Exploitation of this vulnerability can lead to unauthorized command execution on affected systems, potentially resulting in data breaches, system compromise, and further exploitation of the compromised system.

Technical Details of CVE-2020-7604

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The vulnerability arises from the lack of input sanitization in the 'filename' variable within 'lib/job.js', allowing attackers to inject and execute arbitrary commands.

Affected Systems and Versions

Product: pulverizr
Vendor: Not available
Versions affected: All versions including 0.7.0

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the 'filename' variable to construct exec calls without proper sanitization, requiring the creation of a file with a specific name.

Mitigation and Prevention

Protecting systems from CVE-2020-7604 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update pulverizr to a patched version that addresses the command injection vulnerability.
Implement input validation and sanitization mechanisms to prevent unauthorized command execution.

Long-Term Security Practices

Regularly monitor and audit software code for vulnerabilities like command injection.
Educate developers on secure coding practices to prevent similar vulnerabilities in the future.

Patching and Updates

Apply security patches promptly to mitigate the risk of exploitation.