CVE-2023-38947 – This vulnerability allows attackers to upload a... (How to Fix)

Q: What is the severity of CVE-2023-38947?

CVE-2023-38947 has a CVSS score of 7.2 (HIGH). This vulnerability allows attackers to upload arbitrary PHP files to WBCE CMS through the /languages/install.php component, leading to remote code execution. It affects WBCE CMS version 1.6.1. Attackers can gain full control of affected systems.

📋 TL;DR

This vulnerability allows attackers to upload arbitrary PHP files to WBCE CMS through the /languages/install.php component, leading to remote code execution. It affects WBCE CMS version 1.6.1. Attackers can gain full control of affected systems.

💻 Affected Systems

Products:

WBCE CMS

Versions: 1.6.1

Operating Systems: All

Default Config Vulnerable: ⚠️ Yes

Notes: Only affects installations with the vulnerable /languages/install.php component accessible.

📦 What is this software?

Wbce Cms by Wbce

View all CVEs affecting Wbce Cms →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise with attacker gaining administrative access, installing backdoors, stealing data, and using the server as a pivot point for further attacks.

🟠

Likely Case

Webshell upload leading to data theft, defacement, or cryptocurrency mining malware installation.

🟢

If Mitigated

Attack blocked at web application firewall or file upload validation layer with no impact.

🌐 Internet-Facing: HIGH

🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes

Weaponized: CONFIRMED

Unauthenticated Exploit: ⚠️ Yes

Complexity: LOW

Multiple public exploit scripts and proof-of-concepts available. Attack requires no authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None known

Restart Required: No

Instructions:

1. Check for official patch from WBCE CMS developers. 2. If available, download and apply patch. 3. Verify fix by testing file upload functionality.

🔧 Temporary Workarounds

Disable vulnerable component

linux

Remove or restrict access to /languages/install.php file

mv /path/to/wbce/languages/install.php /path/to/wbce/languages/install.php.disabled
chmod 000 /path/to/wbce/languages/install.php

Implement file upload restrictions

all

Add server-side validation to block PHP file uploads

🧯 If You Can't Patch

Implement strict file upload validation in web application firewall
Restrict network access to WBCE CMS administration interfaces

🔍 How to Verify

Check if Vulnerable:

Attempt to upload a PHP file to /languages/install.php endpoint. If successful without proper validation, system is vulnerable.

Check Version:

Check WBCE CMS version in admin panel or via version.php file

Verify Fix Applied:

Test that PHP file uploads to /languages/install.php are blocked or properly validated.

📡 Detection & Monitoring

Log Indicators:

Unusual file uploads to /languages/install.php
POST requests with PHP file content
Webshell access patterns

Network Indicators:

HTTP POST requests to /languages/install.php with file uploads
Unusual outbound connections from web server

SIEM Query:

source="web_logs" AND (uri="/languages/install.php" OR file_extension="php") AND http_method="POST"

📊 Metadata

CVE ID: CVE-2023-38947

CVSS v3 Score: 7.2 (HIGH)

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

CWE: CWE-434

Published: August 3, 2023

Last Updated: November 21, 2024

🔗 References

https://gitee.com/CTF-hacker/pwn/issues/I7LH2N Exploit,Issue Tracking,Third Party Advisory
https://github.com/capture0x/WBCE_CMS
https://packetstormsecurity.com/files/176018/WBCE-CMS-1.6.1-Shell-Upload.html
https://gitee.com/CTF-hacker/pwn/issues/I7LH2N Exploit,Issue Tracking,Third Party Advisory
https://github.com/capture0x/WBCE_CMS
https://packetstormsecurity.com/files/176018/WBCE-CMS-1.6.1-Shell-Upload.html

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🔗 Related Vulnerabilities

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