CVE-2020-5412 : Vulnerability Insights and Analysis
Learn about CVE-2020-5412 affecting Spring Cloud Netflix versions 2.2.x and 2.1.x. Find out how attackers can exploit the Hystrix Dashboard proxy.stream endpoint and steps to mitigate the vulnerability.
Spring Cloud Netflix, versions 2.2.x prior to 2.2.4, and versions 2.1.x prior to 2.1.6, are vulnerable to a security issue that allows unauthorized access to servers through the Hystrix Dashboard proxy.stream endpoint.
Understanding CVE-2020-5412
This CVE affects Spring Cloud Netflix, exposing a vulnerability that could be exploited by malicious users to make unauthorized requests to servers.
What is CVE-2020-5412?
CVE-2020-5412 is a security vulnerability in Spring Cloud Netflix that allows attackers to use the Hystrix Dashboard proxy.stream endpoint to send requests to servers reachable by the dashboard server.
The Impact of CVE-2020-5412
The vulnerability enables attackers to access servers that should not be publicly exposed, potentially leading to unauthorized data access or manipulation.
Technical Details of CVE-2020-5412
Spring Cloud Netflix versions 2.2.x and 2.1.x are affected by this vulnerability.
Vulnerability Description
The issue allows unauthorized access to servers through the Hystrix Dashboard proxy.stream endpoint, enabling attackers to send requests to other servers.
Affected Systems and Versions
- Product: Spring Cloud Netflix
- Vendor: Spring by VMware
- Versions Affected: 2.2.x (prior to 2.2.4) and 2.1.x (prior to 2.1.6)
Exploitation Mechanism
Attackers can exploit the Hystrix Dashboard proxy.stream endpoint to make requests to servers reachable by the dashboard server, bypassing security measures.
Mitigation and Prevention
To address CVE-2020-5412, follow these steps:
Immediate Steps to Take
- Upgrade affected systems to versions 2.2.4 or 2.1.6 to mitigate the vulnerability.
- Restrict access to the Hystrix Dashboard proxy.stream endpoint.
Long-Term Security Practices
- Regularly update and patch Spring Cloud Netflix to the latest versions.
- Implement network segmentation to limit access to sensitive servers.
Patching and Updates
- Apply security patches provided by Spring by VMware to fix the vulnerability and enhance system security.