CVE-2017-18197 : Vulnerability Insights and Analysis
Learn about CVE-2017-18197, a vulnerability in mxGraph version 3.7.6 and earlier that allows XXE attacks through the /ServerView endpoint. Find out how to mitigate and prevent this security risk.
This CVE-2017-18197 article provides insights into a vulnerability in mxGraph that exposes systems to XML External Entity (XXE) attacks.
Understanding CVE-2017-18197
What is CVE-2017-18197?
The convert() method in mxGraphViewImageReader.java of mxGraph version 3.7.6 and earlier lacks essential flags in the SAXParserFactory instance, making it susceptible to XXE attacks.
The Impact of CVE-2017-18197
This vulnerability has been exploited through the /ServerView endpoint, potentially allowing malicious entities to execute XXE attacks.
Technical Details of CVE-2017-18197
Vulnerability Description
The vulnerability in mxGraphViewImageReader.java exposes systems to XXE attacks due to missing protection flags in the SAXParserFactory instance.
Affected Systems and Versions
- Affected Product: mxGraph
- Affected Version: Before 3.7.6
Exploitation Mechanism
The vulnerability can be exploited through the /ServerView endpoint, enabling attackers to launch XXE attacks.
Mitigation and Prevention
Immediate Steps to Take
- Update mxGraph to version 3.7.6 or later to mitigate the vulnerability.
- Implement strict input validation to prevent malicious XML input.
Long-Term Security Practices
- Regularly monitor and update software components to address security vulnerabilities.
- Educate developers on secure coding practices to prevent similar vulnerabilities.
Patching and Updates
Apply security patches and updates provided by mxGraph to address the XXE vulnerability.