Dynamic (#77)

tests/dynamic_fixtures/java/static_method/Benign.java

@@ -0,0 +1,23 @@
+// Phase 14 — plain static method, benign.
+//
+// Invokes a fixed shell command and discards the user input — the `;`
+// in a vuln payload cannot escape because the payload is never passed
+// to a shell-interpreted argv slot.
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public class Benign {
+    public static void processInput(String input) throws Exception {
+        System.out.print("__NYX_SINK_HIT__\n");
+        // No-op echo of a fixed string — `input` is dropped.
+        String[] cmd = {"/bin/sh", "-c", "echo hello"};
+        Process p = Runtime.getRuntime().exec(cmd);
+        BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
+        String line;
+        while ((line = reader.readLine()) != null) {
+            System.out.println(line);
+        }
+        p.waitFor();
+    }
+}