Overview
CVE-2023-47473 is a critical Directory Traversal vulnerability identified within versions 23.8_ad0 and earlier of fuwushe.org’s iFair software. This vulnerability could allow an attacker to gain unauthorized access to sensitive data through a specifically crafted script, leading to potential system compromise or data leakage. It is essential for iFair software users to understand the implications of this vulnerability and take immediate steps to mitigate its risks.
Vulnerability Summary
CVE ID: CVE-2023-47473
Severity: High (7.5 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
iFair by fuwushe.org | 23.8_ad0 and before
How the Exploit Works
The exploit works by exploiting a weakness in the iFair software’s directory traversal controls. An attacker crafts a malicious script that is able to bypass these controls and gain unauthorized access to directories containing sensitive data. This could include user credentials, confidential files, or other proprietary information, which could then be exfiltrated or used for further malicious activity.
Conceptual Example Code
Below is a simplified example of how this directory traversal vulnerability might be exploited using a malicious HTTP request:
GET /../../../../../etc/passwd HTTP/1.1
Host: vulnerable-ifair.example.comIn this example, the attacker is attempting to access the system’s password file by moving up the directory tree using the “../” string, a common technique in directory traversal attacks.
Mitigation Guidance
Users are advised to immediately apply the vendor’s patch to mitigate this vulnerability. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by detecting and blocking exploit attempts. Regularly updating and patching software remains the best defense against such vulnerabilities.
