CVE-2017-7559 : Exploit Details and Defense Strategies
Learn about CVE-2017-7559 affecting Undertow versions, enabling data injection in HTTP responses. Find mitigation steps and long-term security practices to prevent exploitation.
Undertow versions 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final are affected by a vulnerability that allows for injection of data into HTTP responses.
Understanding CVE-2017-7559
What is CVE-2017-7559?
A vulnerability in Undertow versions allows attackers to inject data into HTTP responses, potentially leading to web-cache pollution, XSS attacks, or unauthorized access to sensitive information.
The Impact of CVE-2017-7559
The incomplete fix for CVE-2017-2666 in Undertow versions enables attackers to manipulate HTTP responses, posing risks of web-cache pollution, XSS attacks, and data access.
Technical Details of CVE-2017-7559
Vulnerability Description
- Undertow versions 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final are susceptible to data injection in HTTP responses.
Affected Systems and Versions
- Product: Undertow
- Vendor: Red Hat, Inc.
- Affected Versions: 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, 1.3.x before 1.3.31.Final
Exploitation Mechanism
- Attackers exploit the incomplete fix for CVE-2017-2666, allowing injection of data into HTTP responses, potentially leading to various attacks.
Mitigation and Prevention
Immediate Steps to Take
- Update Undertow to versions 2.0.0.Alpha2, 1.4.17.Final, or 1.3.31.Final to mitigate the vulnerability.
- Monitor and filter input to prevent injection attacks.
Long-Term Security Practices
- Regularly update software and apply security patches.
- Implement secure coding practices to prevent injection vulnerabilities.
Patching and Updates
- Apply the latest patches and updates provided by Red Hat, Inc. to address the vulnerability.