默认情况下禁止 Minecraft 日志记录中使用 Message Pattern Lookup#1209
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Forge 似乎在使用这个功能，需要考虑更保守的策略。 |
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Log4j2 被爆出严重的 RCE 漏洞，至目前为止所有版本都存在该漏洞。对于 Minecraft 服务器来说，任何成员只需要向服务器发送带有特定内容的字符串，即可控制服务器执行攻击者想要的命令。（修复见 apache/logging-log4j2#608）
由于 Minecraft 客户端允许在网络上共享世界，充当服务器的角色，此时也可能遭受类似的攻击。
该攻击是基于 Log4j2 中的 Message Pattern Lookup 功能，Minecraft 中似乎没有使用该功能，默认禁用它可以避免玩家在使用客户端开服时遭受对应攻击。