Vulnerability Details : 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 category: Server-side request forgery (SSRF)
Products affected by CVE-2021-27738
- cpe:2.3:a:apache:kylin:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27738
2.43%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27738
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-27738
-
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.Assigned by:
- nvd@nist.gov (Primary)
- security@apache.org (Secondary)
References for CVE-2021-27738
-
https://lists.apache.org/thread/vkohh0to2vzwymyb2x13fszs3cs3vd70
CVE-2021-27738: Apache Kylin: Improper Access Control to Streaming Coordinator & SSRF-Apache Mail ArchivesMailing List;Vendor Advisory
-
http://www.openwall.com/lists/oss-security/2022/01/06/6
oss-security - CVE-2021-27738: Apache Kylin: Improper Access Control to Streaming Coordinator & SSRFMailing List;Third Party Advisory
Jump to