CVE-2020-13442 : Vulnerability Insights and Analysis
Learn about CVE-2020-13442, a remote code execution vulnerability in DEXT5Upload up to version 2.7.1402870. Understand the impact, affected systems, exploitation, and mitigation steps.
A Remote code execution vulnerability exists in DEXT5Upload in DEXT5 through 2.7.1402870. An attacker can upload a PHP file via dext5handler.jsp handler because the uploaded file is stored under dext5uploadeddata/.
Understanding CVE-2020-13442
This CVE-2020-13442 vulnerability allows remote code execution in DEXT5Upload, potentially leading to serious security breaches.
What is CVE-2020-13442?
CVE-2020-13442 is a remote code execution vulnerability found in DEXT5Upload within DEXT5 versions up to 2.7.1402870. It enables attackers to upload malicious PHP files through the dext5handler.jsp handler due to improper file storage.
The Impact of CVE-2020-13442
The exploitation of this vulnerability can result in unauthorized remote code execution, potentially compromising the integrity and confidentiality of the affected system.
Technical Details of CVE-2020-13442
This section provides more in-depth technical insights into the CVE-2020-13442 vulnerability.
Vulnerability Description
The vulnerability in DEXT5Upload allows attackers to upload PHP files, leading to remote code execution through the dext5handler.jsp handler.
Affected Systems and Versions
- Product: DEXT5
- Vendor: Not applicable
- Versions affected: Up to 2.7.1402870
Exploitation Mechanism
Attackers exploit this vulnerability by uploading a PHP file via the dext5handler.jsp handler, taking advantage of the insecure file storage location.
Mitigation and Prevention
Protecting systems from CVE-2020-13442 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Disable or restrict access to the dext5handler.jsp handler.
- Implement file upload restrictions and validation mechanisms.
- Monitor file uploads for suspicious activities.
Long-Term Security Practices
- Regularly update and patch the DEXT5 software to eliminate known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address potential weaknesses.
Patching and Updates
Ensure that the DEXT5 software is updated to a version that addresses the CVE-2020-13442 vulnerability.