Impact

Successful exploitation of this SQL injection vulnerability allows for unauthorized access to the application's database. This could lead to the exposure of student or administrative credentials, exfiltration of personal records stored within the admission system, and potential administrative takeover of the application. Given the nature of the application, the impact primarily concerns the loss of confidentiality and integrity of educational data.

Recommendation

Prioritize the identification and isolation of all instances of the Online Admission System Project version 1.0 within the environment. Deploy the provided detection rule to monitor for SQL injection attempts against the target login page. If the application is internet-facing, restrict access to the /admin/ directory using a WAF or VPN until the vulnerability is remediated.

Rules

• title: "Detect SQL Injection Attempt against Online Admission System" description: "Detects potential SQL injection attempts targeting the User parameter in /admin/login1.php" logsource: category: "webserver" detection: selection: cs-uri-stem|endswith: "/admin/login1.php" cs-uri-query|contains:
• "User="
• "SELECT"
• "UNION"
• "--"
• "OR 1=1" condition: selection level: "high" tags:
• "attack.initial_access"
• "attack.t1190" tests: positive:
• name: "SQL injection attempt in User parameter" data:
• cs-uri-stem: "/admin/login1.php" cs-uri-query: "User=admin' OR 1=1--" negative:
• name: "Legitimate login attempt" data:
• cs-uri-stem: "/admin/login1.php" cs-uri-query: "User=testuser" falsepositives:
• "Legitimate users inputting special characters that coincidentally match SQL syntax" handoff: detection_confidence: "medium" required_telemetry:
• log_source: "webserver" event_or_channel: "Access Logs" required_fields:
• "cs-uri-stem"
• "cs-uri-query" availability: "available" notes: "Requires web server access logs with full query string logging" validation: status: "needs_environment_validation" steps:
• "Simulate a benign SQL injection string in a lab environment to verify log capture" expected_telemetry: "Web server access logs capturing the malicious query string" pass_criteria: "Alert fires for the injected test string" known_evasions:
• "Use of URL encoding or obfuscation techniques to bypass keyword-based filters" limitations:
• "Keyword matching may produce false positives on non-malicious user input" tuning:
• source: "Global WAF logs" guidance: "Tune based on observed standard usage patterns of the web application" suggested_owner: "Detection Engineering"