CVE-2019-17636 Explained : Impact and Mitigation
Learn about CVE-2019-17636 affecting Eclipse Theia versions 0.3.9 to 0.15.0. Discover the impact, technical details, and mitigation steps for this security vulnerability.
Eclipse Theia versions 0.3.9 through 0.15.0 are affected by a vulnerability in the pre-installed extension "Mini-Browser" that allows reading files on the host's file system without proper origin restrictions, potentially leading to remote attacks.
Understanding CVE-2019-17636
In this CVE, a design flaw in Eclipse Theia's Mini-Browser extension exposes a HTTP endpoint that lacks proper restrictions, enabling potential exploitation.
What is CVE-2019-17636?
Between versions 0.3.9 and 0.15.0 of Eclipse Theia, the Mini-Browser extension on npmjs.com allows reading files on the host's file system without origin limitations, posing a security risk.
The Impact of CVE-2019-17636
The vulnerability can be exploited for remote attacks using DNS rebinding or drive-by downloads of malicious exploits, compromising system security.
Technical Details of CVE-2019-17636
Eclipse Theia's vulnerability in the Mini-Browser extension exposes systems to potential exploitation.
Vulnerability Description
The Mini-Browser extension in Eclipse Theia versions 0.3.9 to 0.15.0 permits reading files on the host's file system without proper origin restrictions, creating a security risk.
Affected Systems and Versions
- Product: Eclipse Theia
- Vendor: The Eclipse Foundation
- Versions: 0.3.9 to 0.15.0
Exploitation Mechanism
The design flaw in the Mini-Browser extension allows remote attackers to exploit the HTTP endpoint, potentially leading to DNS rebinding attacks or drive-by downloads of malicious exploits.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks posed by CVE-2019-17636.
Immediate Steps to Take
- Disable or remove the Mini-Browser extension in affected versions of Eclipse Theia.
- Implement network restrictions to limit access to vulnerable endpoints.
Long-Term Security Practices
- Regularly update and patch Eclipse Theia to address security vulnerabilities.
- Conduct security audits and penetration testing to identify and address potential weaknesses.
Patching and Updates
- Apply patches provided by The Eclipse Foundation to fix the vulnerability in affected versions of Eclipse Theia.