Advisories for Maven/Org.apache.shardingsphere/Shardingsphere package

Deserialization of Untrusted Data vulnerability in Apache ShardingSphere-Agent, which allows attackers to execute arbitrary code by constructing a special YAML configuration file. The attacker needs to have permission to modify the ShardingSphere Agent YAML configuration file on the target machine, and the target machine can access the URL with the arbitrary code JAR. An attacker can use SnakeYAML to deserialize java.net.URLClassLoader and make it load a JAR from a specified …

Apache ShardingSphere-Proxy prior to 5.3.0 when using MySQL as database backend didn't cleanup the database session completely after client authentication failed, which allowed an attacker to execute normal commands by constructing a special MySQL client. This vulnerability has been fixed in Apache ShardingSphere 5.3.0.

In Apache ShardingSphere, the web console uses the SnakeYAML library for parsing YAML inputs to load datasource configuration. SnakeYAML allows unmarshalling data to a Java type by using the YAML tag. Unmarshalling untrusted data could lead to security flaws such as Remote Code Execution (RCE).