Vulnerability Information

AppSecAI Vulnerability ID: 69654fbefc355c4beda09b67
Vulnerability: SQL Injection
CWE Classification: CWE-89
Severity: Medium
File: src/main/java/org/owasp/benchmark/testcode/BenchmarkTest02355.java
Detection Rule: java.lang.security.audit.sqli.tainted-sql-from-http-request.tainted-sql-from-http-request
Description: Detected input from a HTTPServletRequest going into a SQL sink or statement. This could lead to SQL injection if variables in the SQL statement are not properly sanitized. Use parameterized SQL queries or properly sanitize user input instead.

Triage Analysis

Status: Confirmed vulnerability
Security Assessment:

Severity: High

Confidence: 100%

Analysis

The code contains a definite SQL injection vulnerability at line 67. User input from HTTP request parameter names flows through the doSomething() method into the 'bar' variable, which is directly concatenated into a SQL string using string interpolation: "PASSWORD='" + bar + "'". While the USERNAME field uses a parameterized placeholder (?), the PASSWORD field uses unsafe string concatenation. The PreparedStatement is created AFTER the concatenation occurs, so it provides no protection for the concatenated portion. An attacker can inject SQL by crafting malicious parameter names (e.g., 'foo' OR '1'='1') that will be executed as SQL code, enabling authentication bypass or data manipulation.

Recommended Remediation

Replace string concatenation with a second parameterized placeholder. Change line 67 to: 'String sql = "SELECT * from USERS where USERNAME=? and PASSWORD=?";' and add 'statement.setString(2, bar);' before statement.execute(). This ensures both USERNAME and PASSWORD use parameterized queries that treat user input as data rather than executable SQL code.

Remediation Details

Fix Description:

Summary

The SQL injection vulnerability has been successfully fixed in src/main/java/org/owasp/benchmark/testcode/BenchmarkTest02355.java.

Changes made:

1. Line 62: Replaced string concatenation with a parameterized placeholder for the PASSWORD field

   • Before: "SELECT * from USERS where USERNAME=? and PASSWORD='" + bar + "'"
   • After: "SELECT * from USERS where USERNAME=? and PASSWORD=?"

2. Line 70: Added parameter binding for the PASSWORD field

   • Added: statement.setString(2, bar);

Security improvement:
The code originally concatenated user input (bar) directly into the SQL query string, allowing attackers to inject malicious SQL code. The fix uses PreparedStatement's parameterized query mechanism for both USERNAME and PASSWORD fields, treating user input as data rather than executable SQL code. This prevents SQL injection attacks by ensuring that special characters in user input cannot alter the query structure.

Functional equivalence:
The fix maintains complete API compatibility and functional equivalence. All method signatures, return types, and business logic remain unchanged. The query executes identically to before, but securely handles user input.

No dependency updates are required since the fix uses the existing PreparedStatement API already present in the codebase.

Changes Made:

• Updated source code with secure implementation

This PR was generated automatically to address a security vulnerability.
Please review the changes carefully before merging.