CVE-2018-25192: GPS Tracking System SQLi Vulnerability

CVE-2018-25192 Overview

CVE-2018-25192 is a SQL Injection vulnerability affecting GPS Tracking System version 2.12. The vulnerability allows unauthenticated attackers to bypass authentication by injecting SQL code through the username parameter. Attackers can submit crafted POST requests to the login.php endpoint with SQL injection payloads in the username field to gain unauthorized access without valid credentials.

Critical Impact

Unauthenticated attackers can completely bypass authentication controls and gain unauthorized access to the GPS tracking system, potentially exposing sensitive location data and system functionality.

Affected Products

• GPS Tracking System 2.12

Discovery Timeline

• 2026-03-06 - CVE CVE-2018-25192 published to NVD
• 2026-03-09 - Last updated in NVD database

Technical Details for CVE-2018-25192

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) resides in the authentication mechanism of GPS Tracking System 2.12. The login.php endpoint fails to properly sanitize user-supplied input in the username parameter before incorporating it into SQL queries. This classic injection flaw allows attackers to manipulate the underlying database queries, effectively bypassing the authentication logic entirely.

The vulnerability is network-accessible and requires no prior authentication or user interaction to exploit. An attacker can craft malicious POST requests containing SQL injection payloads that alter the intended query logic, causing the application to authenticate the attacker without valid credentials.

Root Cause

The root cause of this vulnerability is improper input validation and failure to use parameterized queries or prepared statements when processing the username parameter in the login.php authentication handler. User-supplied input is directly concatenated into SQL query strings without proper sanitization, escaping, or type validation.

Attack Vector

The attack is executed remotely over the network by sending specially crafted HTTP POST requests to the login.php endpoint. The attacker injects SQL syntax into the username parameter, which is then interpreted as part of the SQL query rather than as data. Common payloads include techniques like ' OR '1'='1 or comment-based injection to terminate the password check portion of the query.

For detailed technical information and proof-of-concept examples, refer to the Exploit-DB #45816 entry and the VulnCheck SQL Injection Advisory.

Detection Methods for CVE-2018-25192

Indicators of Compromise

• Unusual authentication events with suspicious usernames containing SQL syntax characters such as single quotes, semicolons, or SQL keywords
• Multiple failed login attempts followed by successful authentication from the same source IP
• Web server logs showing POST requests to login.php with anomalous parameter lengths or encoded SQL payloads
• Database query logs revealing syntax errors or unexpected query structures in authentication-related queries

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in POST parameters
• Implement intrusion detection signatures for SQL injection attempts targeting authentication endpoints
• Enable detailed logging on the login.php endpoint to capture all authentication attempts with full parameter values
• Monitor database query logs for anomalous authentication queries or SQL syntax errors

Monitoring Recommendations

• Configure real-time alerting for authentication successes from accounts that have not had recent legitimate activity
• Establish baseline metrics for authentication patterns and alert on statistical deviations
• Monitor for unusual geographic or temporal access patterns following successful authentications
• Implement rate limiting on the login endpoint to slow brute-force SQL injection attempts

How to Mitigate CVE-2018-25192

Immediate Actions Required

• Restrict network access to the GPS Tracking System to trusted IP addresses using firewall rules
• Place a Web Application Firewall (WAF) in front of the application with SQL injection protection enabled
• Review authentication logs for evidence of exploitation and investigate any suspicious access
• Consider temporarily disabling the affected login functionality if alternative access methods exist

Patch Information

No official vendor patch information is available in the current CVE data. Organizations should monitor the vendor's official channels for security updates. For technical details and additional context, refer to the Exploit-DB #45816 and the VulnCheck SQL Injection Advisory.

Workarounds

• Implement input validation at the web server or reverse proxy level to reject requests containing SQL metacharacters in authentication parameters
• Deploy a WAF rule to block requests to login.php containing common SQL injection patterns
• If source code access is available, modify the authentication query to use parameterized queries or prepared statements
• Implement network segmentation to limit exposure of the GPS Tracking System to only authorized networks

# Example WAF configuration to block SQL injection in login parameters
# ModSecurity rule example
SecRule ARGS:username "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection Attempt Detected in Username Parameter',\
    log,\
    auditlog"