CVE-2017-5214 : Exploit Details and Defense Strategies
Learn about CVE-2017-5214, a vulnerability in the b2j_contact extension for Joomla! versions prior to 2.1.13, enabling attackers to predict unique identification values and access arbitrary files.
This CVE-2017-5214 article provides insights into a vulnerability in the b2j_contact extension for Joomla! versions prior to 2.1.13, allowing attackers to predict unique identification values.
Understanding CVE-2017-5214
The b2j_contact extension vulnerability simplifies unauthorized access to arbitrary uploaded files.
What is CVE-2017-5214?
The Codextrous B2J Contact extension before version 2.1.13 for Joomla! enables attackers to predict uniqid values, facilitating file access.
The Impact of CVE-2017-5214
Exploiting this vulnerability allows attackers to predict unique identification values, aiding in unauthorized file access.
Technical Details of CVE-2017-5214
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The flaw in the b2j_contact extension allows attackers to predict uniqid values based on time values, simplifying unauthorized file access.
Affected Systems and Versions
- Product: b2j_contact extension
- Vendor: Codextrous
- Versions affected: Prior to 2.1.13 for Joomla!
Exploitation Mechanism
Attackers exploit the vulnerability by predicting uniqid values, leveraging knowledge of specific time values to access and read arbitrary uploaded files.
Mitigation and Prevention
Protecting systems from CVE-2017-5214 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the b2j_contact extension to version 2.1.13 or newer.
- Monitor file uploads for suspicious activities.
Long-Term Security Practices
- Regularly update Joomla! and its extensions.
- Implement access controls to restrict file access.
Patching and Updates
Apply patches and updates provided by Codextrous to address the vulnerability.