Headline

CVE-2023-33493: [CVE-2023-33493] Unrestricted Upload of File with Dangerous Type in the Ajaxmanager File and Database explorer (ajaxmanager) module from RSI for PrestaShop

An Unrestricted Upload of File with Dangerous Type vulnerability in the Ajaxmanager File and Database explorer (ajaxmanager) module for PrestaShop through 2.3.0, allows remote attackers to upload dangerous files without restrictions.

1 year ago

CVE

Open in Source

#vulnerability #web #backdoor #auth

An “Unrestricted Upload of File with Dangerous Type” vulnerability exists in the Ajaxmanager File and Database explorer (ajaxmanager) module, from RSI, for PrestaShop, in all versions (including the latest version 2.3.0). This allows remote attackers to upload dangerous files without restriction.

Summary

CVE ID: CVE-2023-33493
Published at: 2023-07-28
Advisory source: Friends-Of-Presta
Platform: PrestaShop
Product: ajaxmanager
Impacted release: All versions (No fix provided. Still vulnerable in the latest version 2.3.0)
Product author: RSI
Weakness: CWE-434
Severity: critical (10)

Description

In the Ajaxmanager File and Database explorer (ajaxmanager) module for PrestaShop, remote attackers can access a file explorer without being logged in, enabling upload view and deletion of files. The file explorer tool is also providing access to a shell console, port scan and server information. Disabling or uninstalling the module does not remove access to the tool. The issue is not fixed in the latest version.

It should be noted that the module provides users the ability to set a password to restrict access to the tool. However, the password is giving no protection. A bug allows users to access the file explorer without having to provide the password.

This vulnerability has been successfully reproduced in versions 2.1.0, 2.2.0 and 2.3.0 (the last version to date). We believe that the issue also existed in previous versions.

WARNING: Disabling or uninstalling the module will not stop the vulnerability from being exploited. You must delete it completely.

Be warned that other modules from this creator are actively scanned, and this one will probably be exploited soon.

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

Removing and altering files (without malware injection)
Removing and altering data in the database (without malware injection)
Obtaining database password and cookie key (without malware injection)
Uploading malwares to the website
Obtaining complete admin access to the website

Patch

This module contains multiple functional and technical vulnerabilities. No patch can be applied without redeveloping most of the module to introduce an authentication system.

Also, even with a proper authentication system, due to the nature of the module, its usage alone can qualify it as a backdoor. As this module is not essential for PrestaShop, it’s recommended to uninstall the module (and to remove the module’s files).

Make sure that the following directory is removed after uninstalling the module : /modules/ajaxmanager/

Timeline

Date

Action

2023-03-29

Discovery of the vulnerability by Profileo

2023-03-29

Security issue reported to the author, in addons support platform

2023-03-31

The author did not confirm the issue

2023-04-02

Release additional details to the author to reproduce the issue