title: Hardcoded credentials
description: 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 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.
problem types: CWE-798 Use of Hard-coded Credentials
affected:
{
product: Apache Kylin
vendor: Apache Software Foundation
versions:
lessThanOrEqual: 2.6.6, status: affected, version: Apache Kylin 2, versionType: custom
lessThanOrEqual: 3.1.2, status: affected, version: Apache Kylin 3, versionType: custom
lessThanOrEqual: 4.0.0, status: affected, version: Apache Kylin 4, versionType: custom
}
metrics:
other: [
content: {'other': 'moderate'}
type: unknown
]
workarounds: Users of Kylin 2.x & Kylin 3.x should upgrade to 3.1.3 or apply patch https://github.com/apache/kylin/pull/1782.
Users of Kylin 4.x should upgrade to 4.0.1 or apply patch https://github.com/apache/kylin/pull/1781.
After upgrading, users can configure the value of `kylin.security.encrypt.cipher.ivSpec` in kylin.properties for encryption algorithm, and then re-encrypt the password they need to encrypt.