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We urge you to report any vulnerabilities directly to us. Our mission is to ensure the safety and security of the PrestaShop ecosystem. Unfortunately, many module developers may not always recognize or acknowledge the vulnerabilities in their code, whether due to lack of awareness, or inability to properly evaluate the associated risk, or other reasons.
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.
Should you discover any vulnerabilities, please report them to us at: report[@]security-presta.org or visit https://security-presta.org for more information.
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[CVE-2023-29630] Blind SQL injection vulnerability in Jms MegaMenu (jmsmegamenu) PrestaShop module
The module Jms MegaMenu (jmsmegamenu) from Joommasters contains a Blind SQL injection vulnerability. This module is for the PrestaShop e-commerce platform and mainly provided with joo masters PrestaShop themes
Summary
- CVE ID: CVE-2023-29630
- Published at: 2023-03-13
- Advisory source: Friends-Of-Presta
- Platform: PrestaShop
- Product: jmsmegamenu
- Impacted release: All versions (at least 1.1.x and 2.0.x)
- Product author: Joommasters
- Weakness: CWE-89
- Severity: critical (9.8)
Description
ajax_jmsmegamenu.php hold sensitives SQL calls that can be executed with a trivial http call and exploited to forge a blind SQL injection.
WARNING : This exploit is actively used to deploy 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
- 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/ajax_jmsmegamenu.php
+++ b/ajax_jmsmegamenu.php
@@ -29,1 +29,1 @@ function getPosts
- UPDATE `'._DB_PREFIX_.'jmsmegamenu` SET `params` = \''.Tools::getValue('params').'\'
+ UPDATE `'._DB_PREFIX_.'jmsmegamenu` SET `params` = \''.pSQL(Tools::getValue('params')).'\'
Timeline
| Date | Action |
|---|---|
| 2022-09-01 | Issue discovered during a pentest |
| 2023-02-17 | Contact the author |
| 2023-03-13 | Publish this security advisory |
Other recommendations
- 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 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 these set of rules.
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
