Description
The Amazon JDBC Driver for Redshift is a Type 4 JDBC driver that provides database connectivity through the standard JDBC application program interfaces (APIs) available in the Java Platform, Enterprise Editions. Prior to version 2.1.0.28, SQL injection is possible when using the non-default connection property `preferQueryMode=simple` in combination with application code which has a vulnerable SQL that negates a parameter value. There is no vulnerability in the driver when using the default, extended query mode. Note that `preferQueryMode` is not a supported parameter in Redshift JDBC driver, and is inherited code from Postgres JDBC driver. Users who do not override default settings to utilize this unsupported query mode are not affected. This issue is patched in driver version 2.1.0.28. As a workaround, do not use the connection property `preferQueryMode=simple`. (NOTE: Those who do not explicitly specify a query mode use the default of extended query mode and are not affected by this issue.)
References
https://github.com/aws/amazon-redshift-jdbc-driver/security/advisories/GHSA-x3wm-hffr-chwm
https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-24rp-q3w6-vc56
https://github.com/aws/amazon-redshift-jdbc-driver/commit/0d354a5f26ca23f7cac4e800e3b8734220230319
https://github.com/aws/amazon-redshift-jdbc-driver/commit/12a5e8ecfbb44c8154fc66041cca2e20ecd7b339
https://github.com/aws/amazon-redshift-jdbc-driver/commit/bc93694201a291493778ce5369a72befeca5ba7d
