CVE-2017-7695 : What You Need to Know
Learn about CVE-2017-7695, a vulnerability in BigTree CMS before 4.2.17 allowing attackers to upload malicious files for code execution. Find mitigation steps here.
BigTree CMS before version 4.2.17 is vulnerable to Unrestricted File Upload, allowing attackers to execute arbitrary code.
Understanding CVE-2017-7695
Before version 4.2.17 of BigTree CMS, a vulnerability known as Unrestricted File Upload exists, enabling attackers to bypass safety checks.
What is CVE-2017-7695?
This vulnerability in BigTree CMS allows attackers to upload a file named 'xxx.php[space]' to execute malicious code.
The Impact of CVE-2017-7695
The vulnerability permits attackers to bypass security measures and execute arbitrary code on the affected system.
Technical Details of CVE-2017-7695
BigTree CMS before version 4.2.17 is susceptible to Unrestricted File Upload.
Vulnerability Description
Attackers can exploit this flaw by uploading a file named 'xxx.php[space]', circumventing security checks and executing unauthorized code.
Affected Systems and Versions
- Product: BigTree CMS
- Vendor: N/A
- Versions affected: Before 4.2.17
Exploitation Mechanism
By uploading a file with a specific name, attackers can evade security validations and run malicious code on the target system.
Mitigation and Prevention
To address CVE-2017-7695, follow these steps:
Immediate Steps to Take
- Update BigTree CMS to version 4.2.17 or later.
- Implement file upload restrictions and validation mechanisms.
Long-Term Security Practices
- Regularly monitor and audit file uploads on the CMS.
- Educate users on safe file upload practices to prevent malicious uploads.
Patching and Updates
- Apply security patches promptly to mitigate known vulnerabilities in BigTree CMS.