CVE-2017-7545 : What You Need to Know
Learn about CVE-2017-7545, a medium severity vulnerability in jbpm-designer version 6.5 enabling remote attackers to conduct XML eXternal Entity (XXE) attacks. Find out how to mitigate and prevent this security risk.
CVE-2017-7545 is a vulnerability found in jbpm-designer version 6.5 that allows remote attackers to conduct XML eXternal Entity (XXE) attacks.
Understanding CVE-2017-7545
What is CVE-2017-7545?
CVE-2017-7545 is a vulnerability in jbpm-designer version 6.5 that enables remote attackers to exploit XML parsing to retrieve files accessible to the user and potentially launch sophisticated XXE attacks.
The Impact of CVE-2017-7545
This vulnerability poses a medium severity risk with high confidentiality impact, allowing attackers to access sensitive files and potentially execute further attacks.
Technical Details of CVE-2017-7545
Vulnerability Description
The XmlUtils class in jbpm-designer 6.5 expands external parameter entities during XML file parsing, enabling remote attackers to retrieve user-accessible files and execute XXE attacks.
Affected Systems and Versions
- Product: jbpm-designer
- Vendor: KIE
- Version: 6.5
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- User Interaction: None
- Vector String: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Mitigation and Prevention
Immediate Steps to Take
- Update to a patched version of jbpm-designer to mitigate the vulnerability.
- Implement strict input validation to prevent malicious XML input.
Long-Term Security Practices
- Regularly monitor and update software to address security vulnerabilities.
- Educate users and developers on secure coding practices to prevent XXE attacks.
Patching and Updates
- Apply security patches provided by the vendor to fix the vulnerability.