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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-2024-24302] Deserialization of Untrusted Data in Tunis Soft - Product Designer module for PrestaShop
In the module “Product Designer” (productdesigner) up to version 1.178.36 from Tunis Soft for PrestaShop, a guest can execute a remote code via un untrusted data deserialized.
Summary
- CVE ID: CVE-2024-24302
- Published at: 2024-02-29
- Platform: PrestaShop
- Product: productdesigner
- Impacted release: < 1.178.36 (1.178.36 fixed the vulnerability)
- Product author: Tunis Soft
- Weakness: CWE-918
- Severity: critical (10)
Description
Prior to PHP 8.0, a deserialization of untrusted data exploiting phar wrapper, in the method ProductDesignerPixabayModuleFrontController::postProcess() can be used with a trivial http call and exploited to execute a remote code.
This exploit uses a PrestaShop front controller and most attackers can conceal the module controller’s path during the exploit, so you will never know within your conventional frontend logs that it exploits this vulnerability. You will only see “POST /” inside your conventional frontend logs. Activating the AuditEngine of mod_security (or similar) is the only way to get data to confirm this exploit.
CVSS base metrics
- Attack vector: network
- Attack complexity: low
- Privilege required: none
- User interaction: none
- Scope: changed
- Confidentiality: high
- Integrity: high
- Availability: high
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Possible malicious usage
- Obtain admin access
- Steal/Remove data from the associated PrestaShop
Other recommendations
- It’s recommended to upgrade the module to its latest version
- Activate OWASP 933’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 |
|---|---|
| 2023-10-24 | Issue discovered during a code review by TouchWeb.fr |
| 2023-10-24 | Contact PrestaShop Addons security Team to confirm version scope by author |
| 2023-10-25 | PrestaShop Addons security Team confirms version scope |
| 2023-11-07 | Author provide a patch |
| 2024-02-05 | Received CVE ID |
| 2024-02-29 | Publish this security advisory |
Tunis Soft thanks TouchWeb for its courtesy and its help after the vulnerability disclosure.
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
