Vulnerability identifier: #VU59279

Vulnerability risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-27738

CWE-ID: CWE-918

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Kylin
Server applications / Database software

Vendor: Apache Foundation

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input in "StreamingCoordinatorController.java" when handling requests sent to "/kylin/api/streaming_coordinator/*" REST API endpoints. A remote non-authenticated attacker can send a specially crafted HTTP request and force the application to issue arbitrary requests, such as assigning/unassigning of streaming cubes, creation/modification and deletion of replica sets, to the Kylin Coordinator.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Kylin: 3.1.0 - 3.1.2, 3.0.0 - 3.0.2

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External links
http://lists.apache.org/thread/vkohh0to2vzwymyb2x13fszs3cs3vd70
http://www.openwall.com/lists/oss-security/2022/01/06/6

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.