Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Fasterxml | Jackson-Databind | >= 2.0.0, < 2.6.7.3 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://russiansecurity.expert/2016/04/20/mysql-connect-file-read/ExploitThird Party Advisory
- http://www.securityfocus.com/bid/109227Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2858Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2935Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2936Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2937Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2938Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2998Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3044Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3045Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3046Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3050Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3149Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3200Third Party Advisory
- https://github.com/FasterXML/jackson-databind/issues/2326PatchThird Party Advisory
FAQ
What is CVE-2019-12086?
CVE-2019-12086 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 end...
How severe is CVE-2019-12086?
CVE-2019-12086 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-12086?
Check the references section above for vendor advisories and patch information. Affected products include: Fasterxml Jackson-Databind, Debian Debian Linux.