CVE-2019-15123 : Security Advisory and Response
Learn about CVE-2019-15123, a security flaw in Viki Vera version 4.9.1.26180 allowing remote code execution. Find out how to mitigate this vulnerability and prevent unauthorized access.
Vulnerability in Viki Vera version 4.9.1.26180 allows remote code execution via the Branding Module.
Understanding CVE-2019-15123
What is CVE-2019-15123?
The security flaw in Viki Vera version 4.9.1.26180 permits attackers to upload a harmful .aspx file, leading to remote code execution on the website.
The Impact of CVE-2019-15123
Exploiting this vulnerability enables unauthorized users to execute arbitrary code remotely on the affected site.
Technical Details of CVE-2019-15123
Vulnerability Description
The Branding Module in Viki Vera 4.9.1.26180 allows authenticated users to change the website's logo, which can be abused by attackers to upload malicious files and achieve remote code execution.
Affected Systems and Versions
- Product: Viki Vera
- Version: 4.9.1.26180
Exploitation Mechanism
Attackers can exploit this vulnerability by uploading a harmful .aspx file through the Branding Module, gaining the ability to execute arbitrary code remotely.
Mitigation and Prevention
Immediate Steps to Take
- Disable the Branding Module if not essential for operations.
- Implement strict file upload validation to prevent malicious file uploads.
- Regularly monitor and audit website changes and file uploads.
Long-Term Security Practices
- Conduct regular security assessments and penetration testing.
- Keep software and systems up to date with the latest security patches.
- Educate users on safe practices regarding file uploads and website modifications.
Patching and Updates
Apply patches and updates provided by Viki Vera to address this vulnerability.