CVE-2020-27514 : Exploit Details and Defense Strategies
Learn about CVE-2020-27514, a critical Directory Traversal vulnerability in ZrLog version 2.1.15, allowing remote attackers to delete files and cause denial of service (DoS). Find mitigation steps and preventive measures.
CVE-2020-27514 is a Directory Traversal vulnerability in the delete function in admin.api.TemplateController in ZrLog version 2.1.15, allowing remote attackers to delete arbitrary files and cause a denial of service (DoS).
Understanding CVE-2020-27514
This CVE identifies a critical security issue in ZrLog version 2.1.15 that can be exploited by attackers to delete files and disrupt services.
What is CVE-2020-27514?
The vulnerability in the delete function of admin.api.TemplateController in ZrLog version 2.1.15 enables remote attackers to perform Directory Traversal attacks, leading to unauthorized file deletions and potential denial of service.
The Impact of CVE-2020-27514
The exploitation of this vulnerability can result in severe consequences, including unauthorized deletion of critical files and disruption of services, potentially causing downtime and data loss.
Technical Details of CVE-2020-27514
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows remote attackers to delete arbitrary files through the delete function in admin.api.TemplateController in ZrLog version 2.1.15.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Versions Affected: ZrLog version 2.1.15
Exploitation Mechanism
Attackers exploit the vulnerability by manipulating directory traversal sequences in the delete function, enabling them to delete files outside the intended directory structure.
Mitigation and Prevention
Protecting systems from CVE-2020-27514 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Disable or restrict access to the delete function in admin.api.TemplateController.
- Implement input validation to prevent directory traversal attacks.
- Monitor file deletion activities for suspicious behavior.
Long-Term Security Practices
- Regularly update and patch ZrLog to the latest secure version.
- Conduct security audits to identify and address vulnerabilities proactively.
- Educate developers and administrators on secure coding practices.
Patching and Updates
- Apply patches provided by ZrLog promptly to address the vulnerability and enhance system security.