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When configured to enable default typing, Jackson contained a deserialization vulnerability that could lead to arbitrary code execution. Jackson fixed this vulnerability by blacklisting known "deserialization gadgets".
Spring Batch configures Jackson with global default typing enabled which means that through the previous exploit, arbitrary code could be executed if all of the following is true:
In order to protect against this type of attack, Jackson prevents a set of untrusted gadget classes from being deserialized. Spring Batch should be proactive against blocking unknown “deserialization gadgets” when enabling default typing.
Users of an affected version should upgrade to 4.2.3 or later. Releases that have fixed this issue include:
This issue was identified and responsibly reported by Srikanth Ramu.
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To report a security vulnerability in a VMware service or product please refer to the VMware Security Response Policy.