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GHSA-5ww9-j83m-q7qx

Information exposure in FasterXML jackson-databind

Source: GitHub Advisory Database (reviewed) High CVE-2019-12086

Packages

EcosystemPackageAffectedFixed in
Maven com.fasterxml.jackson.core:jackson-databind >= 2.9.0, < 2.9.9 2.9.9
Maven com.fasterxml.jackson.core:jackson-databind >= 2.8.0, < 2.8.11.4 2.8.11.4
Maven com.fasterxml.jackson.core:jackson-databind >= 2.7.0, < 2.7.9.6 2.7.9.6
Maven com.fasterxml.jackson.core:jackson-databind >= 2.0.0, < 2.6.7.3 2.6.7.3

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.