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Date: Thu, 6 Jan 2022 19:54:46 +0800 (CST)
From: "Xiaoxiang Yu" <>
Subject: CVE-2021-45458: Apache Kylin: Hardcoded credentials

Severity: moderate


Apache Kylin provides encryption classes PasswordPlaceholderConfigurer to help users encrypt their passwords. In the encryption algorithm used by this encryption class, the cipher is initialized with a hardcoded key and IV.  If users use class PasswordPlaceholderConfigurer to encrypt their password and configure it into kylin's configuration file, there is a risk that the password may be decrypted.
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; Apache Kylin 4 version 4.0.0 and prior versions.


Users of Kylin 2.x & Kylin 3.x should upgrade to 3.1.3 or apply patch
Users of Kylin 4.x should upgrade to 4.0.1 or apply patch

After upgrading, users can configure the value of `` in for encryption algorithm, and then re-encrypt the password they need to encrypt.


Alvaro Munoz 


Best wishes to you ! 
From ´╝ÜXiaoxiang Yu

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