[CVE-2024-26469] Server-Side Request Forgery (SSRF) in Tunis Soft – Product Designer for PrestaShop

PrestaShop Security Advisory

In the module “Product Designer” (productdesigner) up to version 1.178.36 from Tunis Soft for PrestaShop, an anonymous user can perform a Server-Side Request Forgery (SSRF) in affected versions.

Summary

  • CVE ID: CVE-2024-26469
  • 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 (9.1)

Description

In the Product Designer module from Tunis Soft for PrestaShop, an improper validation of url parameter in the method ProductDesignerPixabayModuleFrontController::postProcess can be executed via a trivial HTTP call to forge Server-Side Request.

This vulnerability can be exploited to initiate a HTTP request and get the return, for instance, use the vulnerable website as proxy to attack others websites, exfiltrate data in files under IP restriction or perform a path traversal attack.

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: unchanged
  • Confidentiality: high
  • Integrity: high
  • Availability: none

Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Possible malicious usage

  • Attack others websites via the vulnerability
  • Bypass WAF/.htaccess restrictions
  • Perform path traversal attack

Other recommendations

  • It’s recommended to upgrade the module to its latest version
  • Activate OWASP 930 and 931’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

DateAction
2023-09-30Issue discovered during a code review by TouchWeb
2023-09-30Contact PrestaShop Addons security Team to confirm version scope by author
2023-10-25PrestaShop Addons security Team confirms version scope
2023-11-07Author provide a patch
2024-02-22Received CVE ID
2024-02-29Publish this security advisory

Tunis Soft thanks TouchWeb for its courtesy and its help after the vulnerability disclosure.

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