CVE-2019-12086

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Fasterxml Jackson-databind

PublishedMay 17, 2019

First seenMay 17, 2019

How to fix

Update

fasterxml jackson-databind2.6.7.3, 2.7.9.6, 2.8.11.4, 2.9.9 or later
com.fasterxml.jackson.core:jackson-databind2.9.9, 2.8.11.4, 2.7.9.6, 2.6.7.3 or later

Vendor advisories

Affected products

Product	Affected versions	Fixed in
fasterxml jackson-databind	2.0.0 ≤ v < 2.6.7.3, 2.7.0 ≤ v < 2.7.9.6, 2.8.0 ≤ v < 2.8.11.4, 2.9.0 ≤ v < 2.9.9	2.6.7.3, 2.7.9.6, 2.8.11.4, 2.9.9
debian debian_linux	8.0, 9.0	—
com.fasterxml.jackson.core:jackson-databindMaven	2.9.0 ≤ v < 2.9.9, 2.8.0 ≤ v < 2.8.11.4, 2.7.0 ≤ v < 2.7.9.6, 2.0.0 ≤ v < 2.6.7.3	2.9.9, 2.8.11.4, 2.7.9.6, 2.6.7.3

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