CVE-2021-3007 : Vulnerability Insights and Analysis
Learn about CVE-2021-3007, a critical deserialization flaw in Laminas Project laminas-http and Zend Framework 3.0.0 that can lead to remote code execution. Find out the impact, affected systems, exploitation details, and mitigation steps.
A detailed article about the CVE-2021-3007 vulnerability in Laminas Project laminas-http and Zend Framework 3.0.0, focusing on a critical deserialization flaw that could result in remote code execution.
Understanding CVE-2021-3007
This section provides insights into the nature of the vulnerability and its potential impact.
What is CVE-2021-3007?
The vulnerability in Laminas Project laminas-http before version 2.14.2 and Zend Framework 3.0.0 allows for a deserialization flaw that could lead to remote code execution under specific circumstances. Even though the laminas-http vendor considers it a vulnerability in the PHP language itself, it has implemented some type checking to mitigate exploitation.
The Impact of CVE-2021-3007
The vulnerability poses a significant risk as it can be exploited for remote code execution if the attacker can control the content, potentially leading to a complete compromise of the affected system.
Technical Details of CVE-2021-3007
Detailed technical information related to the vulnerability.
Vulnerability Description
The deserialization vulnerability is rooted in the __destruct method of the Zend\Http\Response\Stream class in Stream.php, allowing attackers to execute arbitrary code remotely.
Affected Systems and Versions
Laminas Project laminas-http versions before 2.14.2 and Zend Framework 3.0.0 are affected by this critical vulnerability.
Exploitation Mechanism
Exploitation of this vulnerability involves controlling the content to trigger the deserialization flaw, enabling attackers to execute remote code.
Mitigation and Prevention
Guidance on mitigating and preventing the CVE-2021-3007 vulnerability.
Immediate Steps to Take
It is advisable to update the affected systems to the latest patched versions to prevent exploitation of this vulnerability. Additionally, restrict access to vulnerable components.
Long-Term Security Practices
Incorporate secure coding practices, conduct regular security audits, and ensure timely patching of software to enhance overall security posture.
Patching and Updates
Regularly monitor for security updates from relevant vendors and apply patches promptly to address known vulnerabilities.