A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint, the service has the mysql-connector-java jar (8.0.14 or earlier) in the classpath, and an attacker can host a crafted MySQL server reachable by the victim, an attacker can send a crafted JSON message that allows them to read arbitrary local files on the server. This occurs because of missing com.mysql.cj.jdbc.admin.MiniAdmin validation.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| com.fasterxml.jackson.core:jackson-databind(Maven) | 2.9.0 | 2.9.9 | N/A |
| com.fasterxml.jackson.core:jackson-databind(Maven) | 2.8.0 | 2.8.11.4 | N/A |
| com.fasterxml.jackson.core:jackson-databind(Maven) | 2.7.0 | 2.7.9.6 | N/A |
| com.fasterxml.jackson.core:jackson-databind(Maven) | 2.0.0 | 2.6.7.3 | N/A |
CVSS Metrics
