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Debian LTS Advisory ([SECURITY] [DLA 1798-1] jackson-databind security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'jackson-databind' package(s) announced via the DSA-1798-1 advisory.
Insight
Insight
A Polymorphic Typing issue was discovered in jackson-databind, a JSON library for Java. 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.
Affected Software
Affected Software
'jackson-databind' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For Debian 8 'Jessie', this problem has been fixed in version 2.4.2-2+deb8u6. We recommend that you upgrade your jackson-databind packages.