CVE-2025-1588: Phpgurukul Nurse Hiring Path Traversal

CVE-2025-1588 Overview

A critical path traversal vulnerability has been discovered in PHPGurukul Online Nurse Hiring System version 1.0. This vulnerability exists in the /admin/manage-nurse.php file, where improper handling of the profilepic argument allows attackers to manipulate file paths using directory traversal sequences such as ../filedir. The attack can be initiated remotely without authentication, potentially allowing unauthorized access to files outside the intended directory structure.

Critical Impact

Remote attackers can exploit this path traversal vulnerability to access or manipulate files outside the intended upload directory, potentially leading to unauthorized file access, information disclosure, or system compromise.

Affected Products

• PHPGurukul Online Nurse Hiring System 1.0
• Systems running the vulnerable /admin/manage-nurse.php endpoint
• Web servers hosting the Online Nurse Hiring System application

Discovery Timeline

• 2025-02-23 - CVE-2025-1588 published to NVD
• 2025-02-28 - Last updated in NVD database

Technical Details for CVE-2025-1588

Vulnerability Analysis

This vulnerability falls under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory) and CWE-23 (Relative Path Traversal). The vulnerable code in /admin/manage-nurse.php fails to properly sanitize the profilepic parameter before using it in file operations. The application accepts file path input from users without adequate validation, allowing attackers to inject directory traversal sequences.

The attack can be executed remotely over the network without requiring any authentication or user interaction. When exploited, an attacker could potentially read sensitive files from the server, overwrite critical system files, or upload malicious content to arbitrary locations on the filesystem. The initial researcher advisory mentions contradicting vulnerability classes, suggesting the attack surface may extend beyond simple path traversal.

Root Cause

The root cause of this vulnerability is insufficient input validation and sanitization of the profilepic parameter in the nurse management functionality. The application fails to implement proper checks for directory traversal sequences (such as ../) before processing file operations. This allows user-controlled input to escape the intended upload directory and access other parts of the filesystem.

Attack Vector

The vulnerability is exploited via network-based attacks targeting the /admin/manage-nurse.php endpoint. An attacker crafts a malicious request containing directory traversal sequences in the profilepic parameter. By using patterns like ../filedir or multiple ../ sequences, the attacker can navigate outside the intended directory and access or manipulate files in other locations on the server.

The attack requires no special privileges or user interaction, making it particularly dangerous for exposed instances of this application. Successful exploitation could allow attackers to read configuration files containing database credentials, access sensitive patient or nurse data, or potentially achieve code execution by overwriting application files.

Detection Methods for CVE-2025-1588

Indicators of Compromise

• Unusual HTTP requests to /admin/manage-nurse.php containing ../ sequences in the profilepic parameter
• Web server logs showing repeated attempts to access files outside the normal upload directory structure
• Unexpected file access patterns or modifications in directories outside the application's web root
• Error messages indicating failed file operations in unexpected filesystem locations

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block requests containing directory traversal sequences (../, ..%2f, %2e%2e/)
• Configure intrusion detection systems to alert on path traversal patterns targeting PHP applications
• Enable detailed logging on the web server and application to capture file path manipulation attempts
• Deploy file integrity monitoring on critical system directories to detect unauthorized access

Monitoring Recommendations

• Monitor web server access logs for requests to /admin/manage-nurse.php with suspicious parameter values
• Set up alerts for any file operations occurring outside the designated upload directories
• Track authentication failures and unusual access patterns to administrative endpoints
• Review application error logs for path-related exceptions or file not found errors in unexpected locations

How to Mitigate CVE-2025-1588

Immediate Actions Required

• Restrict access to the /admin/manage-nurse.php endpoint using network-level controls or .htaccess rules
• Implement IP whitelisting for administrative functions if possible
• Deploy a Web Application Firewall with rules to block path traversal attacks
• Consider taking the application offline until a patch is available if it contains sensitive data

Patch Information

No official vendor patch has been identified in the available CVE data. Organizations using PHPGurukul Online Nurse Hiring System 1.0 should monitor the PHP Gurukul website and the GitHub security issue for updates. Additional vulnerability details are available through VulDB #296572.

Workarounds

• Implement server-side input validation to reject any file paths containing ../ or other traversal sequences
• Use basename() function in PHP to strip directory components from uploaded filenames
• Configure the web server to restrict file access to the intended upload directory using open_basedir directive
• Apply the principle of least privilege to the web server process to limit filesystem access

# Configuration example - Add to php.ini or .htaccess to restrict file access
# Restrict PHP file operations to specific directories
open_basedir = /var/www/html/uploads:/tmp

# Apache .htaccess rule to block path traversal attempts
RewriteEngine On
RewriteCond %{QUERY_STRING} (\.\./|\.\.%2f) [NC]
RewriteRule .* - [F,L]