CVE-2018-17798 : Security Advisory and Response
Learn about CVE-2018-17798, a vulnerability in zzcms 8.3 that enables remote attackers to delete files, potentially leading to unauthorized database access. Find out how to mitigate this issue.
A vulnerability in zzcms 8.3 allows remote attackers to delete arbitrary files, potentially leading to unauthorized database access.
Understanding CVE-2018-17798
What is CVE-2018-17798?
This CVE identifies a flaw in zzcms 8.3 that enables attackers to delete files using a specific parameter, potentially compromising system integrity.
The Impact of CVE-2018-17798
The vulnerability could result in unauthorized access to the database by deleting critical files, such as the install.lock file.
Technical Details of CVE-2018-17798
Vulnerability Description
By exploiting the user/ztconfig.php file, remote attackers can delete any files using an absolute pathname specified in the oldimg parameter within an action=modify request.
Affected Systems and Versions
- Product: zzcms 8.3
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
Attackers can delete files by manipulating the oldimg parameter in specific requests, potentially leading to unauthorized database access.
Mitigation and Prevention
Immediate Steps to Take
- Apply the patch provided by the vendor promptly.
- Restrict access to sensitive files and directories.
- Monitor system logs for any suspicious activities.
Long-Term Security Practices
- Regularly update and patch all software components.
- Implement access controls and least privilege principles.
- Conduct regular security assessments and penetration testing.
Patching and Updates
Ensure that zzcms is updated to a secure version that addresses the vulnerability.