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Trim user input before sending to detectSqlInjection#291

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fix/trim-user-input-sql-injection
Open

Trim user input before sending to detectSqlInjection#291
bitterpanda63 wants to merge 2 commits into
mainfrom
fix/trim-user-input-sql-injection

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@bitterpanda63 bitterpanda63 commented Jun 1, 2026

Strips leading/trailing whitespace from user input before SQL injection detection, matching the fix applied to the Java firewall in AikidoSec/firewall-java#298.

Problem: An attacker can pad their payload with trailing whitespace (e.g. "payload "). If the DB driver trims this before execution, the SQL query won't contain the padded input, causing @query.include?(@input) to return false (missed detection).

Fix: Apply .downcase.strip to the user input in the SQLInjectionScanner initializer.

See: AikidoSec/firewall-java#298

Summary by Aikido

Security Issues: 0 Quality Issues: 0 Resolved Issues: 0

🐛 Bugfixes

  • Trimmed user input before SQL injection detection to fix missed detections

More info

After adding .strip to user input normalization, inputs like "\n123\n" are
reduced to "123" which is correctly considered safe (alphanumeric). This is
consistent with "  123  " (spaces) already being a refute_attack case.
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codecov Bot commented Jun 1, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.

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