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[CVE-2023-39675] Improper neutralization of a SQL parameter in simpleimportproduct from MyPrestaModules module for PrestaShop
In the module “SimpleImportProduct “ (simpleimportproduct) for PrestaShop, an attacker can perform SQL injection.
Summary
- CVE ID: CVE-2023-39675
- Published at: 2023-09-07
- Advisory source: Friends-Of-Presta.org
- Platform: PrestaShop
- Product: simpleimportproduct
- Impacted release:
- Product author: MyPrestaModules
- Weakness: CWE-89
- Severity: critical (9.8)
Description
Before 0.2.1, sensitive SQL calls in file send.php can be executed with a trivial http call and exploited to forge a blind SQL injection through the POST or GET submitted key variables.
A patch was released in august 2023.
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 sensitive tables to front-office to unlock potential admin’s ajax scripts of modules protected by token on the ecosystem
Patch
--- a/modules/simpleimportproduct/send.php
+++ b/modules/simpleimportproduct/send.php
$key = Tools::getValue('key');
$key = pSQL($key);
- Db::getInstance()->delete('simpleimport_tasks', "import_settings=$key");
+ Db::getInstance()->delete('simpleimport_tasks', "import_settings='".$key."'");
Other recommendations
- Upgrade PrestaShop to the latest version to disable multiquery execution (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_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 |
|---|---|
| 2023-07-10 | Vulnerability found during an audit by sorcery.ie |
| 2023-08-28 | CVE-2023-39675 assigned |
| 2023-09-07 | Blog post released by sorcery.ie |
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.