CVE-2019-25675: eDirectory SQL Injection Vulnerability

CVE-2019-25675 Overview

CVE-2019-25675 is a SQL Injection vulnerability affecting eDirectory, a business directory software platform. The vulnerability allows unauthenticated attackers to bypass administrator authentication and disclose sensitive files by injecting SQL code into parameters. Attackers can exploit the key parameter in the login endpoint with union-based SQL injection to authenticate as administrator, then leverage authenticated file disclosure vulnerabilities in language_file.php to read arbitrary PHP files from the server.

Critical Impact

Unauthenticated attackers can gain full administrator access and read sensitive server files including configuration data and source code, potentially leading to complete system compromise.

Affected Products

• eDirectory (all versions reported as vulnerable)

Discovery Timeline

• 2026-04-05 - CVE CVE-2019-25675 published to NVD
• 2026-04-07 - Last updated in NVD database

Technical Details for CVE-2019-25675

Vulnerability Analysis

This vulnerability chain consists of two distinct security flaws that can be combined for maximum impact. The first flaw is a union-based SQL injection in the login endpoint's key parameter, which allows attackers to manipulate SQL queries to bypass authentication entirely. By crafting malicious SQL payloads, an attacker can trick the application into returning valid administrator credentials or session tokens without knowing the actual password.

The second flaw is an authenticated file disclosure vulnerability in language_file.php. Once an attacker has gained administrator access through the SQL injection bypass, they can exploit this file inclusion weakness to read arbitrary PHP files from the server filesystem. This can expose sensitive configuration files containing database credentials, API keys, and other secrets.

The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), indicating that user-supplied input is not properly sanitized before being incorporated into SQL queries.

Root Cause

The root cause of this vulnerability is improper input validation and lack of parameterized queries in the authentication mechanism. The application directly concatenates user-supplied input into SQL queries without sanitization or prepared statements. Additionally, the language_file.php script fails to properly validate and restrict which files can be accessed, allowing arbitrary file reads once authenticated.

Attack Vector

The attack is network-based and requires no authentication or user interaction. An attacker can remotely exploit the SQL injection vulnerability by sending crafted HTTP requests to the login endpoint. The attack flow involves:

1. Sending a malicious payload to the key parameter in the login form containing union-based SQL injection syntax
2. The injected SQL manipulates the query to return valid administrator session data
3. Using the authenticated session to access language_file.php with a path traversal payload
4. Reading sensitive PHP files from the server including configuration and database connection files

The vulnerability is exploitable from the network with no special conditions required. A public exploit is available on Exploit-DB #46423 demonstrating the attack methodology.

Detection Methods for CVE-2019-25675

Indicators of Compromise

• HTTP requests to the login endpoint containing SQL injection patterns such as UNION SELECT, single quotes, or comment characters (--, #)
• Unusual access patterns to language_file.php with path traversal sequences (../) in parameters
• Administrator login events from unexpected IP addresses or geographic locations
• Error logs showing SQL syntax errors or database warnings indicating injection attempts

Detection Strategies

• Deploy web application firewall (WAF) rules to detect and block SQL injection patterns in request parameters
• Implement intrusion detection system (IDS) signatures for known eDirectory exploit payloads
• Monitor authentication logs for anomalous administrator access patterns or brute-force attempts
• Enable database query logging to detect malformed or suspicious SQL statements

Monitoring Recommendations

• Set up alerts for failed login attempts followed by successful administrator authentication from the same source
• Monitor file access logs for reads of sensitive configuration files like config.php or database connection scripts
• Track HTTP error rates on the login endpoint which may indicate active exploitation attempts
• Review web server access logs for requests matching known exploit signatures from Exploit-DB

How to Mitigate CVE-2019-25675

Immediate Actions Required

• Take the eDirectory application offline or restrict access to trusted networks until patches are applied
• Review administrator accounts for unauthorized access and reset all admin credentials
• Implement web application firewall rules to block SQL injection payloads targeting the login endpoint
• Audit server files for unauthorized modifications or evidence of data exfiltration

Patch Information

No vendor patch information is currently available in the CVE data. Organizations should check the eDirectory Official Website for security updates and upgrade to the latest version if available. Additional technical details can be found in the VulnCheck SQL Injection Advisory.

Workarounds

• Deploy a web application firewall (WAF) with SQL injection detection rules in front of the eDirectory application
• Implement network-level access controls to restrict login page access to authorized IP ranges only
• Use .htaccess or web server configuration to add additional authentication layer to the admin login endpoint
• Consider migrating to an alternative directory platform if the vendor does not provide timely security patches