CVE-2021-27738: apache software foundation apache kylin Server-Side Request Forgery (SSRF)

Vulnerability summary

CVE-2021-27738 is a high (CVSS 7.5) Server-Side Request Forgery (SSRF) vulnerability in apache software foundation apache kylin. EPSS estimates a 2.56% chance of exploitation in the next 30 days, higher than 84.8% of scored vulnerabilities.

Timeline

1. 06-01-2022
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

All request mappings in `StreamingCoordinatorController.java` handling `/kylin/api/streaming_coordinator/*` REST API endpoints did not include any security checks, which allowed an unauthenticated user to issue arbitrary requests, such as assigning/unassigning of streaming cubes, creation/modification and deletion of replica sets, to the Kylin Coordinator. For endpoints accepting node details in HTTP message body, unauthenticated (but limited) server-side request forgery (SSRF) can be achieved. This issue affects Apache Kylin Apache Kylin 3 versions prior to 3.1.2.

• CWE-918Server-Side Request Forgery (SSRF)The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.