Dynamic (#77)

tests/dynamic_fixtures/java/cmdi_positive.java

@@ -0,0 +1,20 @@
+// Command injection — positive fixture.
+// Vulnerable: passes user input to /bin/sh -c via Runtime.exec.
+// Entry: Entry.runPing(String)  Cap: CODE_EXEC
+// Expected verdict: Confirmed ("; echo NYX_PWN_CMDI" echoes the marker)
+
+import java.io.*;
+
+public class Entry {
+    public static void runPing(String host) throws Exception {
+        System.out.print("__NYX_SINK_HIT__\n");
+        String[] cmd = {"/bin/sh", "-c", "echo hello " + host};
+        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();
+    }
+}