CVE-2021-45458

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache KylinApache Kylin 2 <= 2.6.6affected
Apache Software FoundationApache KylinApache Kylin 3 <= 3.1.2affected
Apache Software FoundationApache KylinApache Kylin 4 <= 4.0.0affected

Weaknesses

  • CWE-798: CWE-798 Use of Hard-coded Credentials

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.

ADP Enrichment

CVE Program Container

Additional References

References