CVE-2020-21862 : Vulnerability Insights and Analysis
Understand the impact of CVE-2020-21862, a directory traversal vulnerability in DuxCMS 2.1, allowing attackers to delete arbitrary files. Learn mitigation steps and long-term security practices.
CVE-2020-21862 is a directory traversal vulnerability in DuxCMS 2.1 that allows attackers to delete arbitrary files via a specific path.
Understanding CVE-2020-21862
This section provides insights into the nature and impact of the CVE-2020-21862 vulnerability.
What is CVE-2020-21862?
CVE-2020-21862 is a security flaw in DuxCMS 2.1 that enables malicious actors to delete files they should not have access to by exploiting a directory traversal vulnerability.
The Impact of CVE-2020-21862
The vulnerability poses a significant risk as attackers can potentially delete critical files, leading to data loss, system instability, and unauthorized access to sensitive information.
Technical Details of CVE-2020-21862
Explore the technical aspects of CVE-2020-21862 to understand its implications and how it affects systems.
Vulnerability Description
The vulnerability in DuxCMS 2.1 allows attackers to perform directory traversal attacks, manipulating file paths to delete files outside the intended directory.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Versions: All versions of DuxCMS 2.1 are affected by this vulnerability.
Exploitation Mechanism
Attackers exploit the vulnerability by crafting specific requests to the /admin/AdminBackup/del endpoint, enabling them to delete files beyond the intended scope.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2020-21862 and prevent potential exploitation.
Immediate Steps to Take
- Disable or restrict access to the vulnerable endpoint /admin/AdminBackup/del.
- Implement input validation to sanitize user-controlled input and prevent directory traversal attacks.
Long-Term Security Practices
- Regularly update and patch DuxCMS to address security vulnerabilities.
- Conduct security audits and penetration testing to identify and remediate potential weaknesses.
Patching and Updates
- Apply patches or updates provided by DuxCMS to fix the directory traversal vulnerability and enhance overall system security.