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[CVE-2023-40920] Improper neutralization of an SQL parameter in prixanconnect module for PrestaShop
In the module “Prixan connect” (prixanconnect) for PrestaShop, an attacker can perform a blind SQL injection before 1.62 without restrictions. Release 1.62 fixed this security issue.
Summary
- CVE ID: CVE-2023-40920
- Published at: 2023-10-05
- Advisory source: Friends-Of-Presta.org
- Vendor: PrestaShop
- Product: prixanconnect
- Impacted release: <= 1.61 (1.62 fixed the issue)
- Product author: Prixan
- Weakness: CWE-89
- Severity: critical (9.8)
Description
Up to Release 1.63, multiple sensitive SQL calls in class PrixanconnectUpdateProductsModuleFrontController::importProducts() can be executed with a trivial http call and exploited to forge a blind SQL injection throught a json string posted in the body content.
CVSS base metrics
- Attack vector: network
- Attack complexity: low
- Privilege required: none
- User interaction: none
- Scope: unchanged
- Confidentiality: high
- Integrity: high
- Availability: high
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Possible malicious usage
- Obtain admin access
- Remove data from the associated PrestaShop
- Copy/paste data from sensitive tables to FRONT to expose tokens and unlock admins’s ajax scripts
- Rewrite SMTP settings to hijack emails
Patch
--- a/prixanconnect/controllers/front/Products.php
+++ b/prixanconnect/controllers/front/Products.php
@@ -33,21 +33,21 @@ class PrixanconnectProductsModuleFrontCo
LEFT JOIN `" . _DB_PREFIX_ . "product_attribute` AS pa ON pa.`id_product_attribute` = pashop.`id_product_attribute`
LEFT JOIN `" . _DB_PREFIX_ . "product_attribute_combination` AS combi ON combi.`id_product_attribute` = pashop.`id_product_attribute`
LEFT JOIN `" . _DB_PREFIX_ . "attribute` as attr ON attr.`id_attribute` = combi.`id_attribute`
- LEFT JOIN `" . _DB_PREFIX_ . "attribute_lang` as attlang ON attlang.`id_attribute` = attr.`id_attribute` AND attlang.`id_lang` = " . $langID . "
+ LEFT JOIN `" . _DB_PREFIX_ . "attribute_lang` as attlang ON attlang.`id_attribute` = attr.`id_attribute` AND attlang.`id_lang` = " . (int)$langID . "
LEFT JOIN `" . _DB_PREFIX_ . "attribute_group_lang`AS grouplang ON grouplang.`id_attribute_group` = attr.`id_attribute_group` AND grouplang.`id_lang` = attlang.`id_lang`
- WHERE prshop.`id_shop` = " . $idShop;
+ WHERE prshop.`id_shop` = " . (int)$idShop;
if ($only_active === 1) {
$query .= " AND prshop.`active` = 1";
}
if (!empty($date_from)) {
- $query .= " AND prshop.`date_upd` > '$date_from'";
+ $query .= ' AND prshop.`date_upd` > "'.pSQL($date_from).'"';
}
if (!empty($product_ids) && count($product_ids) > 0) {
- $query .= ' AND prshop.`id_product` IN (' . join(',', $product_ids) . ') ';
+ $query .= ' AND prshop.`id_product` IN (' . implode(',', array_map('intval', $product_ids)) . ') ';
}
- $query .= " ORDER BY prshop.`id_product` $limit";
+ $query .= " ORDER BY prshop.`id_product` ". (int) $limit;
return $query;
}
@@ -177,21 +157,12 @@ INNER JOIN `" . _DB_PREFIX_ . "orders` O
WHERE pt.name = \"product\" GROUP BY p.id_object ) view_counter on (view_counter.obj_id=producttable.`id_product`) ";
$mainSqlQuery = "SELECT producttable.id_product, od.sales_count,od.sales,od.purchase_cost FROM
`" . _DB_PREFIX_ . "product` AS producttable
INNER JOIN `" . _DB_PREFIX_ . "product_shop` AS prshop ON producttable.`id_product`= prshop.`id_product`
INNER JOIN $sqlSubQuerySalesCount
- WHERE prshop.`active` = 1 AND prshop.`id_shop` = " . $idShop;
-
- // LEFT JOIN $sqlSubQueryViews
+ WHERE prshop.`active` = 1 AND prshop.`id_shop` = " . (int)$idShop;
- // $mainSqlQuery = $this->parseDateAndAddToSqlQuery($mainSqlQuery, 'start_date', '>=', false);
- // $mainSqlQuery = $this->parseDateAndAddToSqlQuery($mainSqlQuery, 'end_date', '<=', true);
if (Tools::getValue('ids') != null) {
$splitted = explode(',', Tools::getValue('ids'));
--- a/prixanconnect/controllers/front/ProductsStats.php
+++ b/prixanconnect/controllers/front/ProductsStats.php
@@ -177,66 +161,25 @@ INNER JOIN `" . _DB_PREFIX_ . "orders` O
WHERE pt.name = \"product\" GROUP BY p.id_object ) view_counter on (view_counter.obj_id=producttable.`id_product`) ";
$mainSqlQuery = "SELECT producttable.id_product, od.sales_count,od.sales,od.purchase_cost, view_counter.views FROM
`" . _DB_PREFIX_ . "product` AS producttable
INNER JOIN `" . _DB_PREFIX_ . "product_shop` AS prshop ON producttable.`id_product`= prshop.`id_product`
INNER JOIN $sqlSubQuerySalesCount
LEFT JOIN $sqlSubQueryViews
- WHERE prshop.`active` = 1 AND prshop.`id_shop` = " . $idShop;
+ WHERE prshop.`active` = 1 AND prshop.`id_shop` = " . (int)$idShop;
if (Tools::getValue('ids') != null) {
$splitted = explode(',', Tools::getValue('ids'));
if (count($splitted) > 0) {
- $mainSqlQuery .= ' AND producttable.id_product IN (' . implode(',', $splitted) . ')';
+ $mainSqlQuery .= ' AND producttable.id_product IN (' . implode(',', array_map('intval', $splitted)) . ')';
}
}
--- a/prixanconnect/controllers/front/ProductsViews.php
+++ b/prixanconnect/controllers/front/ProductsViews.php
@@ -176,7 +160,7 @@ class PrixanconnectProductsViewsModuleFr
`" . _DB_PREFIX_ . "product` AS producttable
INNER JOIN `" . _DB_PREFIX_ . "product_shop` AS prshop ON producttable.`id_product`= prshop.`id_product`
LEFT JOIN $sqlSubQueryViews
- WHERE prshop.`active` = 1 AND prshop.`id_shop` = " . $idShop;
+ WHERE prshop.`active` = 1 AND prshop.`id_shop` = " . (int)$idShop;
@@ -184,7 +168,7 @@ class PrixanconnectProductsViewsModuleFr
if (Tools::getValue('ids') != null) {
$splitted = explode(',', Tools::getValue('ids'));
if (count($splitted) > 0) {
- $mainSqlQuery .= ' AND producttable.id_product IN (' . implode(',', $splitted) . ')';
+ $mainSqlQuery .= ' AND producttable.id_product IN (' . implode(',', array_map('intval', $splitted)) . ')';
}
}
--- a/prixanconnect/controllers/front/UpdateProducts.php
+++ b/prixanconnect/controllers/front/UpdateProducts.php
@@ -16,18 +16,20 @@ class PrixanconnectUpdateProductsModuleF
{
header('Content-type: application/json');
// $request->getContent();
+
die(Tools::jsonEncode(array('check' => 'you must call this url with POST method')));
+
}
private function getProductAttributes($product_id)
{
- $query = "SELECT id_product_attribute FROM `" . _DB_PREFIX_ . "product_attribute` WHERE id_product=" . $product_id;
+ $query = "SELECT id_product_attribute FROM `" . _DB_PREFIX_ . "product_attribute` WHERE id_product=" . (int)$product_id;
$results = Db::getInstance()->executeS($query);
return $results;
}
private function getProductFromAttributeId($product_attribute_id)
{
- $query = "SELECT id_product FROM `" . _DB_PREFIX_ . "product_attribute` WHERE id_product_attribute=" . $product_attribute_id;
+ $query = "SELECT id_product FROM `" . _DB_PREFIX_ . "product_attribute` WHERE id_product_attribute=" . (int)$product_attribute_id;
$results = Db::getInstance()->executeS($query);
if ($results && count($results) > 0) {
@@ -102,20 +80,14 @@ class PrixanconnectUpdateProductsModuleF
private function changeProductAttributePrice_mode_impact($id_product, $id_product_attribute, $price, $id_shop)
{
- $query = 'SELECT price FROM `' . _DB_PREFIX_ . 'product` WHERE id_product=' . $id_product;
+ $query = 'SELECT price FROM `' . _DB_PREFIX_ . 'product` WHERE id_product=' . (int)$id_product;
$price_result = Db::getInstance()->executeS($query);
if ($price_result == null || count($price_result) == 0) {
@@ -127,16 +99,11 @@ class PrixanconnectUpdateProductsModuleF
//only shop
- $query = 'UPDATE `' . _DB_PREFIX_ . 'product_attribute_shop` SET price=' . $impact_price . ' WHERE id_product_attribute=' . $id_product_attribute;
+ $query = 'UPDATE `' . _DB_PREFIX_ . 'product_attribute_shop` SET price=' . (float) $impact_price . ' WHERE id_product_attribute=' . (int)$id_product_attribute;
if (!empty($id_shop)) {
- $query .= ' AND id_shop=' . $id_shop;
+ $query .= ' AND id_shop=' . (int)$id_shop;
}
@@ -147,18 +114,17 @@ class PrixanconnectUpdateProductsModuleF
if (empty($id_shop)) {
$id_shop = 0;
}
- $query = 'INSERT INTO `' . _DB_PREFIX_ . 'specific_price` (id_product,id_product_attribute,price,`from`,`to`,id_shop) VALUES(' . (int) $id_product . ',' . $id_product_attribute . ',' . $price . ',' . "'0000-00-00 00:00:00'" . ',' . "'0000-00-00 00:00:00'" . ',' . $id_shop . ')';
+ $query = 'INSERT INTO `' . _DB_PREFIX_ . 'specific_price` (id_product,id_product_attribute,price,`from`,`to`,id_shop) VALUES(' . (int) $id_product . ',' . (int) $id_product_attribute . ',' . (float) $price . ',' . "'0000-00-00 00:00:00'" . ',' . "'0000-00-00 00:00:00'" . ',' . (int) $id_shop . ')';
return Db::getInstance()->execute($query);
- // $query = "UPDATE `" . _DB_PREFIX_ . "specific_price` SET `from`='1980-01-01 00:00:00', `to`='2100-01-01 00:00:00' WHERE `id_specific_price`=" . $newSpecId;
- // return Db::getInstance()->executeS($query);
+
}
private function deleteSpecificPriceForAttribute($id_product, $id_product_attribute, $id_shop)
{
if (empty($id_shop)) {
$id_shop = 0;
}
- $query = 'DELETE FROM `' . _DB_PREFIX_ . 'specific_price` WHERE `id_product` = ' . (int) $id_product . ' AND `id_product_attribute` = ' . $id_product_attribute . ' AND id_shop=' . $id_shop;
+ $query = 'DELETE FROM `' . _DB_PREFIX_ . 'specific_price` WHERE `id_product` = ' . (int) $id_product . ' AND `id_product_attribute` = ' . (int) $id_product_attribute . ' AND id_shop=' . (int)$id_shop;
Db::getInstance()->execute($query);
}
private function updateProductPriceWithCleanSpecific($id, $prix_base, $prix_promo, $idShop)
@@ -195,15 +161,21 @@ class PrixanconnectUpdateProductsModuleF
{
header('Content-type: application/json');
$returned = array('success' => false, 'products' => array(), 'error' => null);
+
try {
$idShop = Tools::getValue('id_shop');
if (!empty($idShop)) {
$idShop = (int) $idShop;
}
+ if (strtoupper(trim($_SERVER['REQUEST_METHOD'])) != 'POST'){
+ throw new Exception('you must call this url with POST method');
+ }
+ $cle_module = Configuration::get('PRIXANCONNECT_CLE');
+ if (Tools::getValue('key') == false || Tools::getValue('key') != $cle_module) {
+ throw new Exception('erreur d\'autorisation');
+ }
// $entityBody = stream_get_contents(STDIN);
$entityBody = file_get_contents('php://input');
@@ -298,10 +264,10 @@ class PrixanconnectUpdateProductsModuleF
if (!is_numeric($prix_base)) {
throw new Exception('prix_base is not correct');
}
- $query_result = Db::getInstance()->executeS('update `' . _DB_PREFIX_ . 'pm_advancedpack` SET fixed_price=' . $prix_base . ' WHERE id_pack=' . $id);
+ $query_result = Db::getInstance()->executeS('update `' . _DB_PREFIX_ . 'pm_advancedpack` SET fixed_price=' . (float)$prix_base . ' WHERE id_pack=' . (int)$id);
$returned['products'][] = array('id' => $id, 'success' => $query_result);
} else {
- $query_result = Db::getInstance()->executeS('update `' . _DB_PREFIX_ . 'pm_advancedpack` SET fixed_price=NULL WHERE id_pack=' . $id);
+ $query_result = Db::getInstance()->executeS('update `' . _DB_PREFIX_ . 'pm_advancedpack` SET fixed_price=NULL WHERE id_pack=' . (int)$id);
$returned['products'][] = array('id' => $id, 'success' => $query_result);
}
} else {
Other recommandations
- It’s recommended to upgrade to the latest version of the module prixanconnect.
- Upgrade PrestaShop to the latest version to disable multiquery executions (separated by “;”) - be warned that this functionality WILL NOT protect your SHOP against injection SQL which uses the UNION clause to steal data.
- Change the default database prefix
ps_with a new longer, arbitrary prefix. Nevertheless, be warned that this is useless against blackhats with DBA senior skills because of a design vulnerability in DBMS - Activate OWASP 942’s rules on your WAF (Web application firewall), be warned that you will probably break your backoffice and you will need to pre-configure some bypasses against this set of rules.
Timeline
| Date | Action |
|---|---|
| 2023-03-05 | Vulnerability discovered during a code reviews by 202 ecommerce |
| 2023-03-07 | Contact the author |
| 2023-04-05 | The author confirm the vulnerability without possibility to verify the patch |
| 2023-05-29 | Retrieve the patched release and ask to the author to fix all sensitive SQL calls |
| 2023-06-15 | Retry to contact Prixan team |
| 2023-08-15 | Request a CVE ID from Mitre.org |
| 2023-08-25 | Recieved the CVE ID |
| 2023-09-25 | Inform the author about the scheduled publication of the CVE. Propose 30 days of delay before disclose. |
| 2023-10-05 | Publication of this security advisory |
Links
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