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fix(security): fix SQL injection in updatePaymetToPaid, OTP random_int, static IV encryption, storage mismatch

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Hamza-Ayed
2026-06-17 06:31:13 +03:00
parent 8c6dea5d96
commit 0ceb67ee56
7 changed files with 100 additions and 33 deletions
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38
backend/encrypt_decrypt.php
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@@ -49,8 +49,9 @@ class EncryptionHelper {
public function encryptData($plainText) {
$plainText = mb_convert_encoding($plainText, 'UTF-8');
$paddedText = $this->addPadding($plainText);
$encrypted = openssl_encrypt($paddedText, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv);
return base64_encode($encrypted);
$iv = random_bytes(16);
$encrypted = openssl_encrypt($paddedText, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $iv);
return base64_encode($iv . $encrypted);
}
public function decryptData($encryptedText) {
@@ -61,6 +62,22 @@ class EncryptionHelper {
return false;
}
// محاولة أولى: استخراج IV عشوائي من أول 16 بايت
if (strlen($decoded) >= 16) {
$iv = substr($decoded, 0, 16);
$payload = substr($decoded, 16);
$decrypted = openssl_decrypt($payload, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $iv);
if ($decrypted !== false) {
$pad = ord($decrypted[strlen($decrypted) - 1]);
if ($pad >= 1 && $pad <= 16) {
return substr($decrypted, 0, -$pad);
}
}
}
// محاولة ثانية: IV ثابت (للبيانات القديمة)
$decrypted = openssl_decrypt($decoded, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv);
if ($decrypted === false) {
@@ -68,7 +85,6 @@ class EncryptionHelper {
return false;
}
// Verify padding is valid before removal
$pad = ord($decrypted[strlen($decrypted) - 1]);
if ($pad < 1 || $pad > 16) {
error_log("[ERROR] Invalid padding value ($pad) for decrypted input: $encryptedText");
@@ -95,13 +111,23 @@ class EncryptionHelper {
return true;
}
public function encryptBinary($data) {
$encrypted = openssl_encrypt($data, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv);
return $encrypted;
$iv = random_bytes(16);
$encrypted = openssl_encrypt($data, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $iv);
return $iv . $encrypted;
}
public function decryptBinary($data) {
if (strlen($data) >= 16) {
$iv = substr($data, 0, 16);
$payload = substr($data, 16);
$decrypted = openssl_decrypt($payload, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $iv);
if ($decrypted !== false) {
return $decrypted;
}
}
// للبيانات القديمة ذات IV الثابت
$decrypted = openssl_decrypt($data, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv);
// CRIT-07 FIX: التحقق من فشل openssl_decrypt
if ($decrypted === false) {
error_log('[CRIT-07] openssl_decrypt failed in decryptBinary');
throw new Exception('Decryption failed');