Overview
This report addresses the cybersecurity vulnerability CVE-2023-50256 related to Froxlor, an open-source server administration software. The vulnerability, found in versions prior to 2.1.2, allows users to bypass mandatory field requirements during registration, potentially leading to system compromise or data leakage. It is a significant issue due to its potential impact on data security and integrity.
Vulnerability Summary
CVE ID: CVE-2023-50256
Severity: High (7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
Froxlor | Versions prior to 2.1.2
How the Exploit Works
The exploit works by submitting the registration form with important fields, such as username and password, left intentionally blank. These fields, which are typically mandatory, can be bypassed in Froxlor versions prior to 2.1.2, allowing the registration process to proceed without key data. This could potentially allow an attacker to gain access to the system and compromise it or leak sensitive data.
Conceptual Example Code
Here is a conceptual example of how the vulnerability might be exploited using an HTTP request:
POST /registration HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
username=&password=&surname=&company_name=In the above example, the attacker leaves the fields for `username`, `password`, `surname`, and `company_name` empty, thereby bypassing the system’s mandatory field requirements and potentially gaining unauthorized access.
Mitigation
To mitigate this vulnerability, users are advised to update Froxlor to version 2.1.2 or later, which contains a fix for this issue. In the meantime, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation.