SSRF in Apache Kylin
CVE-2021-27738
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.026 (85.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000
Affected products
- Apache Kylin
- Apache Software Foundation Kylin — versions Apache Kylin 3
Weakness classification (CWE)
References
- lists.apache.org/thread/vkohh0to2vzwymyb2x13fszs3cs3vd70 (Mailing List, Vendor Advisory)
- www.openwall.com/lists/oss-security/2022/01/06/6 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-27738?
- CVE-2021-27738 is a high-severity vulnerability in Apache Kylin, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2022-01-06.
- How severe is CVE-2021-27738?
- High severity. CVSS v3 base score is 7.5 out of 10.