: The attacker's payload (the malicious .exe or .bat file) is now in place, but it will not run automatically. The trigger occurs when an administrative user (someone with higher privileges) launches the XAMPP Control Panel and performs a routine action, such as opening a log file. Because the control panel uses the configured editor, it will execute the attacker's malicious file instead of Notepad .
The vulnerability, cataloged as , was discovered and publicly disclosed around April 2, 2020. It is a high-severity, improper privilege management flaw (CWE-269) that allows an unprivileged user to achieve arbitrary command execution and privilege escalation on a Windows system running a vulnerable version of XAMPP. The Common Vulnerability Scoring System (CVSS) for this vulnerability is 9.8 out of 10 , indicating a critical level of severity.
Older XAMPP distributions often left the WebDAV module enabled with default or weak administrative credentials. Attackers scanning local area networks can leverage automated frameworks like the Rapid7 Metasploit Module to bypass authentication, upload a PHP web shell, and gain full server side code execution. End-of-Life (EOL) Architecture Threats XAMPP 7.4.3 - Local Privilege Escalation - Exploit-DB xampp for windows 746 exploit
If you are running XAMPP on Windows, it is crucial to harden it, even if it is only on your local machine. A. Set a MySQL/MariaDB Password This is the most critical step. Open the XAMPP Control Panel. Start Apache and MySQL. Click the button on the right.
command. However, the most effective solution is upgrading to a more recent version of XAMPP where service registration scripts have been patched. Furthermore, following the Principle of Least Privilege (PoLP) : The attacker's payload (the malicious
1. Local Privilege Escalation via XAMPP Control Panel (CVE-2020-11107)
Once the web shell is executed, the attacker gains control over the web server process. The term "localroot" implies that the attacker is moving from a local, lower-privilege user to the "root" (or in Windows terms, the Administrator/SYSTEM) user. The vulnerability, cataloged as , was discovered and
XAMPP is meant for local development. Security is intentionally lax to prevent developers from wasting time on configuration issues while coding.
Run the command: mysqladmin -u root password "YourNewSecurePassword"
Apache Friends frequently releases new versions of XAMPP that contain updated, patched versions of PHP, MySQL, and Apache. Download the latest version to ensure you are protected against known CVEs. Conclusion