CVE-2018-25196: ServerZilla SQLi Vulnerability

CVE-2018-25196 Overview

CVE-2018-25196 is a SQL Injection vulnerability affecting ServerZilla 1.0 that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the email parameter. Attackers can send POST requests to reset.php with malicious email values containing SQL operators to bypass authentication and extract sensitive database information.

Critical Impact

Unauthenticated attackers can exploit this SQL injection vulnerability to bypass authentication mechanisms and extract sensitive database information, potentially compromising user credentials and other critical data.

Affected Products

• ServerZilla 1.0

Discovery Timeline

• 2026-03-06 - CVE CVE-2018-25196 published to NVD
• 2026-03-09 - Last updated in NVD database

Technical Details for CVE-2018-25196

Vulnerability Analysis

This SQL injection vulnerability (CWE-89) exists within the password reset functionality of ServerZilla 1.0, specifically in the reset.php endpoint. The application fails to properly sanitize or parameterize user-supplied input in the email parameter before incorporating it into SQL queries. This lack of input validation enables attackers to inject arbitrary SQL commands that are executed by the underlying database.

The vulnerability is particularly dangerous because it requires no authentication to exploit—any remote attacker can target the password reset endpoint. Successful exploitation allows attackers to manipulate database queries, potentially extracting sensitive information such as user credentials, session tokens, and other confidential data stored in the database.

Root Cause

The root cause of this vulnerability is improper input validation and the use of unsanitized user input directly in SQL query construction. The reset.php script concatenates the email parameter value directly into SQL statements without using parameterized queries or prepared statements, allowing SQL metacharacters to alter the intended query logic.

Attack Vector

The attack is conducted over the network without requiring authentication. An attacker crafts a malicious POST request to the reset.php endpoint with a specially crafted email parameter containing SQL injection payloads. The injection payload can include SQL operators such as OR, UNION, and comment sequences to bypass intended query logic or extract data from the database.

The vulnerability allows attackers to:

• Bypass authentication mechanisms
• Extract sensitive data from database tables
• Enumerate database structure and contents
• Potentially modify or delete database records

For technical details on exploitation, see the Exploit-DB #45817 entry and the VulnCheck SQL Injection Advisory.

Detection Methods for CVE-2018-25196

Indicators of Compromise

• Unusual POST requests to reset.php containing SQL keywords such as UNION, SELECT, OR, AND, --, or '
• Error messages in logs indicating SQL syntax errors or database query failures
• Abnormal database query patterns or execution times in database logs
• Evidence of data extraction through error-based or time-based blind SQL injection techniques

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block common SQL injection patterns in POST parameters
• Monitor HTTP request logs for suspicious payloads targeting reset.php with anomalous email parameter values
• Configure database query logging to identify queries with unexpected structure or syntax
• Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns

Monitoring Recommendations

• Enable detailed logging for the reset.php endpoint and review logs regularly for injection attempts
• Set up alerting for database errors that may indicate exploitation attempts
• Monitor for unusual database access patterns, particularly bulk data reads from sensitive tables
• Implement rate limiting on the password reset functionality to slow down automated exploitation attempts

How to Mitigate CVE-2018-25196

Immediate Actions Required

• Restrict or disable access to the reset.php endpoint until a patch can be applied
• Implement input validation to reject email parameters containing SQL metacharacters
• Deploy a web application firewall (WAF) with SQL injection protection rules
• Review database access logs for evidence of prior exploitation and assess potential data compromise

Patch Information

No vendor patch information is currently available. Consult the VulnCheck SQL Injection Advisory for the latest remediation guidance. Organizations should consider upgrading to a newer version of the software if available or implementing compensating controls.

Workarounds

• Modify the reset.php code to use parameterized queries or prepared statements instead of string concatenation
• Implement server-side input validation to sanitize the email parameter using allowlist patterns
• Use database accounts with minimal privileges for the web application to limit the impact of successful exploitation
• Consider disabling the password reset functionality entirely if it is not critical to operations

# Example: Apache mod_security rule to block SQL injection in email parameter
SecRule ARGS:email "@detectSQLi" "id:1001,phase:2,deny,status:403,log,msg:'SQL Injection attempt blocked in email parameter'"