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Attackers exploit Spring4Shell flaw to let loose the Mirai botnet


"They also can downgrade to a lower JDK version such as version 8, though doing so "could impact application features and open doors to other attacks mitigated in higher versions of JDK," the researchers wrote."

The botnet tools like Mirai are not single function, they are toolsets. The nature of IOT is ship and forget. I would be highly surprised that they do not carry exploits for multiple versions since not doing so would leave a lot of older targets unused. So, um, no, downgrading to avoid the exploit du jour is not going to help in the larger scheme.

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