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Given the rise in professional cybercrime networks actively seeking out these vulnerabilities, it's crucial that any potential threats are promptly addressed and the community is informed. The most effective method to do this is by publishing a CVE, like the one provided below.
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[CVE-2023-33666] Improper neutralization of a SQL parameter in aioptimizedcombinations from ai-dev module for PrestaShop
In the module “Opimized combinations” (aioptimizedcombinations) for PrestaShop, an attacker can perform a SQL injection up to 0.1.2. Release 0.1.3 fixed this security issue.
Summary
- CVE ID: CVE-2023-33666
- Published at: 2023-08-03
- Advisory source: Friends-Of-Presta.org
- Platform: PrestaShop
- Product: aioptimizedcombinations
- Impacted release: <= 0.1.2 (0.1.3 fixed issue)
- Product author: ai-dev
- Weakness: CWE-89
- Severity: critical (9.8)
Description
Up to 0.1.3, a sensitive SQL call in file includes/ajax.php can be executed with a trivial http call and exploited to forge a blind SQL injection throught the POST or GET submitted attributes variables.
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
- Technical and personal data leaks
- Obtain admin access
- Remove all data of the linked PrestaShop
- Display sensitives tables to front-office to unlock potential admin’s ajax scripts of modules protected by token on the ecosystem
Patch
--- a/modules/aioptimizedcombinations/includes/ajax.php
+++ b/modules/aioptimizedcombinations/includes/ajax.php
switch (Tools::getValue('action'))
{
case 'getCombination' :
/* If no product or combination, we quit */
if (!Tools::getIsset('product') || !Tools::getIsset('attributes'))
die();
$attributes = explode(',', Tools::getValue('attributes'));
/* Get combination id */
$combination_data = Db::getInstance()->getRow(
'SELECT COUNT(*) as number, pa.id_product_attribute FROM '._DB_PREFIX_.'product_attribute AS pa LEFT JOIN '._DB_PREFIX_.'product_attribute_combination AS pac ON pa.id_product_attribute = pac.id_product_attribute WHERE pa.id_product = '.
- (int)Tools::getValue('product').' AND pac.id_attribute IN ('.pSQL(Tools::getValue('attributes')).') GROUP BY pa.id_product_attribute HAVING number = '.count($attributes)
+ (int)Tools::getValue('product').' AND pac.id_attribute IN ('.implode(',', array_map('intval', explode(',', Tools::getValue('attributes')))).') GROUP BY pa.id_product_attribute HAVING number = '.count($attributes)
);
Other recommandations
-
- To help improve the security of your PrestaShop installation, we recommend upgrading to the latest version. One of the benefits of upgrading is that it will disable the use of multiquery executions (separated by semicolons). However, please be aware that this will not protect your shop against SQL injection attacks that use the UNION clause to steal data. Additionally, it’s important to note that PrestaShop includes a function called pSQL, which includes a strip_tags function. This helps protect your shop against Stored XSS (also known as XSS T2) of Category 1. If a pSQL function is missing, it could potentially expose your project to critical Stored XSS vulnerabilities due to edge cases. Therefore, it’s crucial to ensure that all relevant functions are properly implemented and used consistently throughout your project.
- Change the default database prefix
ps_by 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 these set of rules.
Timeline
| Date | Action |
|---|---|
| 2023-05-08 | Vunlnerability found during a audit by 202 ecommerce |
| 2023-05-10 | Contact the author |
| 2023-05-12 | The author confirm the issue and supply a fixed release |
| 2023-05-12 | Request a CVE ID |
| 2023-08-03 | Publication of this advisory |
Links
DISCLAIMER: The French Association Friends Of Presta (FOP) acts as an intermediary to help hosting this advisory. While we strive to ensure the information and advice provided are accurate, FOP cannot be held liable for any consequences arising from reported vulnerabilities or any subsequent actions taken.
This advisory and patch is licensed under CC BY-SA 4.0
