CVE-2020-13937 Authentication bypass in Apache Kylin

What is CVE-2020-13937?

CVE-2020-13937 is a medium-severity vulnerability in Apache Kylin, published on 19 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Apache Kylin 2.0.0, 2.1.0, 2.2.0, 2.3.0, 2.3.1, 2.3.2, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.5.2, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.6.6, 3.0.0-alpha, 3.0.0-alpha2, 3.0.0-beta, 3.0.0, 3.0.1, 3.0.2, 3.1.0, 4.0.0-alpha has one restful api which exposed Kylin's configuration information without any authentication, so it is dangerous because some confidential information entries will be disclosed to everyone.

Weakness: CWE-922

Which versions are affected by CVE-2020-13937?

4 open source packages ship an affected version, including org.apache.kylin:kylin. It affects 1 product.

Products include Apache Kylin.

How do I fix CVE-2020-13937?

Upgrade org.apache.kylin:kylin to a fixed version for your release line: 3.1.1 or 4.0.0-beta.

Is CVE-2020-13937 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-13937 exists.

Public exploit code: 1 Nuclei template and 3 proofs of concept on GitHub.

Other vulnerabilities in Apache Kylin

• CVE-2020-1956 Apache Kylin OS Command Injection Exploited High 8.8
• CVE-2026-62390 Apache Kylin: SQL Injection Vulnerability in Catalog Cache Refresh API Critical 9.8
• CVE-2022-44621 Apache Kylin: Command injection by Diagnosis Controller Critical 9.8
• CVE-2022-24697 Apache Kylin vulnerable to remote code execution Critical 9.8
• CVE-2021-31522 Apache Kylin unsafe class loading Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2hpg-vwqj-6h6w.