CVE-2021-36774: Apache Kylin: Mysql JDBC Connector Deserialize RCE

["Xiaoxiang Yu" <xxyu () apache org>]

Severity: moderate

Description:

Apache Kylin allows users to read data from other database systems using JDBC. The MySQL JDBC driver supports certain 
properties, which, if left unmitigated, can allow an attacker to execute arbitrary code from a hacker-controlled 
malicious MySQL server within Kylin server processes. 
This issue affects Apache Kylin Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior 
versions.

Mitigation:

Users of Kylin 2.x & Kylin 3.x should upgrade to 3.1.3 or apply patch https://github.com/apache/kylin/pull/1694.

Credit:

jinchen sheng --

Best wishes to you ! 
From ：Xiaoxiang Yu