[pitboss/grind] deferred session-0022 (20260522T043516Z-29b8)

src/dynamic/corpus/header_injection/js.rs

@@ -53,4 +53,62 @@ pub const PAYLOADS: &[CuratedPayload] = &[
         benign_control: None,
         no_benign_control_rationale: None,
     },
+    // Phase 08 tier-(b): raw-socket wire-frame smuggling payload.
+    // Same CRLF-bearing bytes as the Node payload above, but pinned to
+    // the `js_raw` fixture (a `net.createServer` callback writing raw
+    // bytes via `socket.write`).  The wire frame captured off the
+    // response socket carries two distinct `Set-Cookie:` lines, so
+    // `HeaderSmuggledInWire { primary: "Set-Cookie", smuggled:
+    // "Set-Cookie" }` fires — proving the smuggled header survived to
+    // the actual wire instead of being CRLF-stripped en route.
+    //
+    // Distinct payload (not just an extra predicate on the Node row)
+    // because Node's `http.ServerResponse#setHeader` validator strips
+    // CRLF at the wire-write boundary, so the wire-frame predicate
+    // would never fire against the canonical Node fixture.  See
+    // `.pitboss/play/deferred.md` (Phase 08 wire-frame option A) for
+    // the framework-level CRLF-strip empirical from session-0018.
+    CuratedPayload {
+        bytes: b"nyx-session\r\nSet-Cookie: nyx-injected=pwn",
+        label: "header-injection-js-raw-wire-smuggle",
+        oracle: Oracle::SinkProbe {
+            predicates: &[ProbePredicate::HeaderSmuggledInWire {
+                primary: "Set-Cookie",
+                smuggled: "Set-Cookie",
+            }],
+        },
+        is_benign: false,
+        provenance: PayloadProvenance::Curated,
+        since_corpus_version: 12,
+        deprecated_at_corpus_version: None,
+        fixture_paths: &["tests/dynamic_fixtures/header_injection/js_raw/vuln.js"],
+        oob_nonce_slot: false,
+        probe_predicates: &[ProbePredicate::HeaderSmuggledInWire {
+            primary: "Set-Cookie",
+            smuggled: "Set-Cookie",
+        }],
+        benign_control: Some(PayloadRef {
+            label: "header-injection-js-raw-benign",
+        }),
+        no_benign_control_rationale: None,
+    },
+    CuratedPayload {
+        bytes: b"nyx-session%0D%0ASet-Cookie%3A%20nyx-injected%3Dpwn",
+        label: "header-injection-js-raw-benign",
+        oracle: Oracle::SinkProbe {
+            predicates: &[ProbePredicate::HeaderSmuggledInWire {
+                primary: "Set-Cookie",
+                smuggled: "Set-Cookie",
+            }],
+        },
+        is_benign: true,
+        provenance: PayloadProvenance::Curated,
+        since_corpus_version: 12,
+        deprecated_at_corpus_version: None,
+        fixture_paths: &["tests/dynamic_fixtures/header_injection/js_raw/vuln.js"],
+        oob_nonce_slot: false,
+        probe_predicates: &[],
+        benign_control: None,
+        no_benign_control_rationale: None,
+    },
 ];

src/dynamic/lang/js_shared.rs

@@ -1365,6 +1365,116 @@ pub fn emit_header_injection_harness(spec: &HarnessSpec) -> HarnessSource {
         || entry_source.contains("from \"http\"")
         || entry_source.contains("from 'express'")
         || entry_source.contains("from \"express\"");
+    // Phase 08 tier-(b): a fixture that uses `net.createServer` writes
+    // bytes straight to the response socket via `socket.write`, bypassing
+    // every framework-level CRLF validator (Node's
+    // `http.ServerResponse#setHeader` / Express / axum / Tomcat all
+    // strip CRLF before write).  The harness boots the server on a
+    // loopback port and captures the raw response-header block as a
+    // `ProbeKind::HeaderWireFrame` probe.  Mirrors the Python tier-(b)
+    // at `src/dynamic/lang/python.rs::emit_header_injection_harness`.
+    let uses_raw_socket = entry_source.contains("net.createServer")
+        || entry_source.contains("require('net')")
+        || entry_source.contains("require(\"net\")")
+        || entry_source.contains("from 'net'")
+        || entry_source.contains("from \"net\"");
+
+    let wire_frame_via_fixture = if uses_raw_socket {
+        format!(
+            r#"async function nyxWireFrameViaFixture(payload) {{
+  // Phase 08 tier-(b): boot the fixture's net.Server on 127.0.0.1:0,
+  // issue one raw-socket GET, read the bytes the handler wrote to the
+  // response socket up to the CRLF-CRLF boundary.  Returns the captured
+  // header-block bytes on success, or `null` on import / boot failure so
+  // the caller can fall back to the inline synthetic probe.
+  const _net = require('net');
+  let mod;
+  try {{
+    mod = require('./{entry_stem}');
+  }} catch (e) {{
+    return null;
+  }}
+  if (!mod || typeof mod.createServer !== 'function' || typeof mod.setCookieValue !== 'function') {{
+    return null;
+  }}
+  try {{
+    if (Buffer.isBuffer(payload)) {{
+      mod.setCookieValue(payload);
+    }} else {{
+      mod.setCookieValue(Buffer.from(String(payload), 'utf8'));
+    }}
+  }} catch (e) {{
+    return null;
+  }}
+  let server;
+  try {{
+    server = mod.createServer();
+  }} catch (e) {{
+    return null;
+  }}
+  const listenPort = await new Promise((resolve) => {{
+    server.once('error', () => resolve(null));
+    server.listen(0, '127.0.0.1', () => {{
+      const addr = server.address();
+      resolve(addr && typeof addr === 'object' ? addr.port : null);
+    }});
+  }});
+  if (listenPort === null) {{
+    try {{ server.close(); }} catch (e) {{}}
+    return null;
+  }}
+  let raw = Buffer.alloc(0);
+  await new Promise((resolve) => {{
+    const client = _net.createConnection({{ host: '127.0.0.1', port: listenPort }}, () => {{
+      try {{
+        client.write('GET / HTTP/1.0\r\nHost: 127.0.0.1\r\n\r\n');
+      }} catch (e) {{}}
+    }});
+    const timer = setTimeout(() => {{
+      try {{ client.destroy(); }} catch (e) {{}}
+      resolve();
+    }}, 5000);
+    client.on('data', (chunk) => {{
+      raw = Buffer.concat([raw, chunk]);
+      if (raw.length >= 65536 || raw.indexOf('\r\n\r\n') !== -1) {{
+        try {{ client.end(); }} catch (e) {{}}
+      }}
+    }});
+    client.on('end', () => {{ clearTimeout(timer); resolve(); }});
+    client.on('error', () => {{ clearTimeout(timer); resolve(); }});
+    client.on('close', () => {{ clearTimeout(timer); resolve(); }});
+  }});
+  try {{ server.close(); }} catch (e) {{}}
+  const sep = raw.indexOf('\r\n\r\n');
+  if (sep === -1) {{
+    return raw;
+  }}
+  return raw.subarray(0, sep);
+}}
+
+function nyxWireFrameProbe(rawBytes) {{
+  const p = process.env.NYX_PROBE_PATH;
+  if (!p) return;
+  const rec = {{
+    sink_callee: 'net.Server.socket.write',
+    args: [],
+    captured_at_ns: Number(process.hrtime.bigint()),
+    payload_id: process.env.NYX_PAYLOAD_ID || '',
+    kind: {{ kind: 'HeaderWireFrame', raw_bytes: Array.from(rawBytes) }},
+    witness: __nyx_witness('net.Server.socket.write', []),
+  }};
+  try {{
+    require('fs').appendFileSync(p, JSON.stringify(rec) + '\n');
+  }} catch (e) {{
+    // best-effort
+  }}
+}}
+
+"#
+        )
+    } else {
+        String::new()
+    };
 
     let via_fixture = if uses_node_writer {
         format!(
@@ -1434,8 +1544,74 @@ pub fn emit_header_injection_harness(spec: &HarnessSpec) -> HarnessSource {
         "const name = 'Set-Cookie';\nconst value = payload;\nnyxHeaderProbe(name, value);\nconsole.log('__NYX_SINK_HIT__');\nconsole.log(JSON.stringify({ name: name, value: value }));\n"
     };
 
-    let body = format!(
-        r#"// Nyx dynamic harness — HEADER_INJECTION http.ServerResponse#setHeader (Phase 08 / Track J.6).
+    // Phase 08 tier-(b): when the fixture imports `net.createServer`, run
+    // the wire-frame branch first (async IIFE awaits the loopback round
+    // trip).  When it succeeds, emit a `HeaderWireFrame` probe plus a
+    // derived `HeaderEmit` per Set-Cookie line and exit.  When it returns
+    // null (require/boot failure), fall through to the existing sync
+    // tier-(a) / synthetic path so the harness still produces some
+    // signal.
+    let body = if uses_raw_socket {
+        format!(
+            r#"// Nyx dynamic harness — HEADER_INJECTION net.Server raw-socket wire-frame (Phase 08 / Track J.6).
+{shim}
+
+function nyxHeaderProbe(name, value) {{
+  const p = process.env.NYX_PROBE_PATH;
+  if (!p) return;
+  const rec = {{
+    sink_callee: 'http.ServerResponse#setHeader',
+    args: [
+      {{ kind: 'String', value: name }},
+      {{ kind: 'String', value: value }},
+    ],
+    captured_at_ns: Number(process.hrtime.bigint()),
+    payload_id: process.env.NYX_PAYLOAD_ID || '',
+    kind: {{ kind: 'HeaderEmit', name: name, value: value, protocol: 'in-process' }},
+    witness: __nyx_witness('http.ServerResponse#setHeader', [name, value]),
+  }};
+  try {{
+    require('fs').appendFileSync(p, JSON.stringify(rec) + '\n');
+  }} catch (e) {{
+    // best-effort
+  }}
+}}
+
+{wire_frame_via_fixture}(async () => {{
+  const payload = process.env.NYX_PAYLOAD || '';
+  const rawBytes = await nyxWireFrameViaFixture(payload);
+  if (rawBytes !== null && rawBytes !== undefined) {{
+    nyxWireFrameProbe(rawBytes);
+    // Also emit a HeaderEmit record per Set-Cookie line so the tier-(a)
+    // HeaderInjected predicate fires on the same payload that trips
+    // HeaderSmuggledInWire.  The wire-frame branch is the source of
+    // truth; the HeaderEmit records are derived from the same captured
+    // bytes.
+    const headerText = rawBytes.toString('binary');
+    for (const line of headerText.split('\r\n')) {{
+      const sep = line.indexOf(': ');
+      if (sep < 0) continue;
+      const hname = line.slice(0, sep);
+      if (hname.toLowerCase() !== 'set-cookie') continue;
+      const hvalue = line.slice(sep + 2);
+      nyxHeaderProbe(hname, hvalue);
+    }}
+    console.log('__NYX_SINK_HIT__');
+    console.log(JSON.stringify({{ wire_frame_len: rawBytes.length }}));
+    return;
+  }}
+  // Synthetic fallback — wire-frame branch did not produce bytes.
+  const name = 'Set-Cookie';
+  const value = payload;
+  nyxHeaderProbe(name, value);
+  console.log('__NYX_SINK_HIT__');
+  console.log(JSON.stringify({{ name: name, value: value }}));
+}})();
+"#
+        )
+    } else {
+        format!(
+            r#"// Nyx dynamic harness — HEADER_INJECTION http.ServerResponse#setHeader (Phase 08 / Track J.6).
 {shim}
 
 function nyxHeaderProbe(name, value) {{
@@ -1461,7 +1637,8 @@ function nyxHeaderProbe(name, value) {{
 
 {via_fixture}const payload = process.env.NYX_PAYLOAD || '';
 {invoke_via_fixture}"#
-    );
+        )
+    };
     HarnessSource {
         source: body,
         filename: "harness.js".to_owned(),
@@ -3028,6 +3205,93 @@ mod tests {
         let _ = std::fs::remove_dir_all(&dir);
     }
 
+    #[test]
+    fn emit_header_injection_harness_routes_through_wire_frame_when_net_create_server_imported() {
+        let dir = std::env::temp_dir().join("nyx_phase08_js_test_wire_frame");
+        let _ = std::fs::remove_dir_all(&dir);
+        std::fs::create_dir_all(&dir).unwrap();
+        let entry = dir.join("vuln.js");
+        std::fs::write(
+            &entry,
+            "const net = require('net');\nlet cookieValue = Buffer.alloc(0);\nfunction setCookieValue(v) { cookieValue = Buffer.from(String(v)); }\nfunction createServer() { return net.createServer((s) => { s.write(Buffer.concat([Buffer.from('HTTP/1.0 200 OK\\r\\nSet-Cookie: '), cookieValue, Buffer.from('\\r\\n\\r\\nok')])); s.end(); }); }\nmodule.exports = { setCookieValue, createServer };\n",
+        )
+        .unwrap();
+        let h = emit_header_injection_harness(&make_header_spec(
+            entry.to_str().unwrap(),
+            "run",
+        ));
+        assert!(
+            h.source.contains("async function nyxWireFrameViaFixture(payload)"),
+            "tier-(b) harness must define the async wire-frame helper: {}",
+            h.source
+        );
+        assert!(
+            h.source.contains("require('./vuln')"),
+            "tier-(b) harness must require the staged fixture: {}",
+            h.source
+        );
+        assert!(
+            h.source.contains("mod.createServer()"),
+            "tier-(b) harness must boot the fixture's net.Server: {}",
+            h.source
+        );
+        assert!(
+            h.source.contains("'GET / HTTP/1.0\\r\\nHost: 127.0.0.1\\r\\n\\r\\n'"),
+            "tier-(b) harness must issue a raw GET over the client socket: {}",
+            h.source
+        );
+        assert!(
+            h.source
+                .contains("kind: 'HeaderWireFrame', raw_bytes: Array.from(rawBytes)"),
+            "tier-(b) harness must emit a HeaderWireFrame probe carrying the raw header-block bytes: {}",
+            h.source
+        );
+        assert!(
+            h.source.contains("wire_frame_len: rawBytes.length"),
+            "tier-(b) harness must print the wire_frame_len stdout marker: {}",
+            h.source
+        );
+        assert!(
+            h.source.contains("if (hname.toLowerCase() !== 'set-cookie')"),
+            "tier-(b) harness must derive a HeaderEmit probe per Set-Cookie line: {}",
+            h.source
+        );
+        let _ = std::fs::remove_dir_all(&dir);
+    }
+
+    #[test]
+    fn emit_header_injection_harness_drops_wire_frame_branch_when_only_http_required() {
+        let dir = std::env::temp_dir().join("nyx_phase08_js_test_no_wire_frame");
+        let _ = std::fs::remove_dir_all(&dir);
+        std::fs::create_dir_all(&dir).unwrap();
+        let entry = dir.join("vuln.js");
+        std::fs::write(
+            &entry,
+            "const http = require('http');\nfunction run(res, value) { res.setHeader('Set-Cookie', value); }\nmodule.exports = { run };\n",
+        )
+        .unwrap();
+        let h = emit_header_injection_harness(&make_header_spec(
+            entry.to_str().unwrap(),
+            "run",
+        ));
+        assert!(
+            !h.source.contains("async function nyxWireFrameViaFixture"),
+            "http-only harness must not emit the wire-frame helper: {}",
+            h.source
+        );
+        assert!(
+            !h.source.contains("HeaderWireFrame"),
+            "http-only harness must not emit the HeaderWireFrame probe shape: {}",
+            h.source
+        );
+        assert!(
+            !h.source.contains("wire_frame_len"),
+            "http-only harness must not emit the wire_frame_len stdout marker: {}",
+            h.source
+        );
+        let _ = std::fs::remove_dir_all(&dir);
+    }
+
     #[test]
     fn emit_header_injection_harness_derives_entry_stem_from_entry_file() {
         let dir = std::env::temp_dir().join("nyx_phase08_js_test_stem_derive");

tests/dynamic_fixtures/header_injection/js_raw/vuln.js

@@ -0,0 +1,50 @@
+// Phase 08 (Track J.6) — JavaScript raw-socket HEADER_INJECTION vuln fixture.
+//
+// Writes the response status line and headers directly to the wire via
+// `socket.write`, bypassing the framework-level CRLF validator that
+// Node's `http.ServerResponse#setHeader` / Express / axum / Tomcat
+// would otherwise interpose.  A payload carrying `\r\nSet-Cookie: ...`
+// splits the single Set-Cookie header into two on the wire, producing
+// the canonical smuggled-second-header shape that
+// `ProbeKind::HeaderWireFrame` is designed to catch.
+//
+// The harness (`src/dynamic/lang/js_shared.rs::emit_header_injection_harness`)
+// detects the `net.createServer` import in this file and routes
+// through the tier-(b) wire-frame branch: boot a `net.Server` on a
+// loopback port, issue one `GET /` over a raw socket, read the bytes
+// the handler wrote to the response socket, and emit them as a
+// `ProbeKind::HeaderWireFrame` record.
+const net = require('net');
+
+// Set by the harness before each request.  Bytes go straight onto
+// the wire with no encoding pass.
+let cookieValue = Buffer.alloc(0);
+
+function setCookieValue(value) {
+  if (Buffer.isBuffer(value)) {
+    cookieValue = value;
+  } else {
+    cookieValue = Buffer.from(String(value), 'utf8');
+  }
+}
+
+function createServer() {
+  return net.createServer((socket) => {
+    socket.once('data', () => {
+      const body = Buffer.from('ok\n');
+      const head = Buffer.concat([
+        Buffer.from('HTTP/1.0 200 OK\r\n'),
+        Buffer.from('Content-Length: ' + body.length + '\r\n'),
+        Buffer.from('Set-Cookie: '),
+        cookieValue,
+        Buffer.from('\r\n'),
+        Buffer.from('\r\n'),
+      ]);
+      socket.write(Buffer.concat([head, body]));
+      socket.end();
+    });
+    socket.on('error', () => {});
+  });
+}
+
+module.exports = { setCookieValue, createServer };

tests/header_injection_corpus.rs

@@ -726,6 +726,88 @@ mod e2e_phase_08 {
         (spec, tmp)
     }
 
+    // Phase 08 tier-(b): JavaScript raw-socket wire-frame fixture.
+    // `tests/dynamic_fixtures/header_injection/js_raw/vuln.js` boots a
+    // `net.Server` whose callback writes raw bytes via `socket.write`,
+    // bypassing Node's `http.ServerResponse#setHeader` CRLF strip.  The
+    // harness boots the server on a loopback port, reads the response-
+    // header block off the socket, and emits a
+    // `ProbeKind::HeaderWireFrame` record.  Asserts the test exercises
+    // the wire-frame branch (not the synthetic fallback) by pinning
+    // `wire_frame_len` in the captured stdout — that literal only
+    // appears in the tier-(b) write path.
+    fn build_js_raw_spec(entry_name: &str) -> (HarnessSpec, TempDir) {
+        let fixture_src = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+            .join("tests/dynamic_fixtures/header_injection/js_raw/vuln.js");
+        let tmp = TempDir::new().expect("create tempdir");
+        let dst = tmp.path().join("vuln.js");
+        std::fs::copy(&fixture_src, &dst).expect("copy js_raw fixture into tempdir");
+        let entry_file = dst.to_string_lossy().into_owned();
+        let mut digest = blake3::Hasher::new();
+        digest.update(b"phase08-e2e-header-injection|js_raw|vuln.js");
+        let spec_hash = format!("{:016x}", {
+            let bytes = digest.finalize();
+            u64::from_le_bytes(bytes.as_bytes()[..8].try_into().unwrap())
+        });
+        let spec = HarnessSpec {
+            finding_id: spec_hash.clone(),
+            entry_file: entry_file.clone(),
+            entry_name: entry_name.to_owned(),
+            entry_kind: EntryKind::Function,
+            lang: Lang::JavaScript,
+            toolchain_id: default_toolchain_id(Lang::JavaScript).into(),
+            payload_slot: PayloadSlot::Param(0),
+            expected_cap: Cap::HEADER_INJECTION,
+            constraint_hints: vec![],
+            sink_file: entry_file,
+            sink_line: 1,
+            spec_hash: spec_hash.clone(),
+            derivation: SpecDerivationStrategy::FromFlowSteps,
+            stubs_required: vec![],
+            framework: None,
+            java_toolchain: nyx_scanner::dynamic::spec::JavaToolchain::default(),
+        };
+        (spec, tmp)
+    }
+
+    #[test]
+    fn js_raw_socket_vuln_confirms_via_wire_frame_probe() {
+        if !command_available("node") {
+            eprintln!("SKIP js_raw: missing node");
+            return;
+        }
+        let _guard = FIXTURE_LOCK.lock().unwrap_or_else(|e| e.into_inner());
+        let (spec, _tmp) = build_js_raw_spec("run");
+        let opts = SandboxOptions {
+            backend: SandboxBackend::Process,
+            ..SandboxOptions::default()
+        };
+        let outcome = match run_spec(&spec, &opts) {
+            Ok(outcome) => outcome,
+            Err(RunError::BuildFailed { stderr, attempts }) => {
+                eprintln!(
+                    "SKIP js_raw: harness build failed after {attempts} attempts: {stderr}",
+                );
+                return;
+            }
+            Err(e) => panic!("run_spec(js_raw) errored: {e:?}"),
+        };
+        assert_confirmed(Lang::JavaScript, &outcome);
+        let any_wire_frame_marker = outcome.attempts.iter().any(|a| {
+            String::from_utf8_lossy(&a.outcome.stdout).contains("wire_frame_len")
+        });
+        assert!(
+            any_wire_frame_marker,
+            "js_raw fixture must exercise the tier-(b) wire-frame harness branch; \
+             expected `wire_frame_len` substring in at least one attempt's stdout, got attempts={:?}",
+            outcome
+                .attempts
+                .iter()
+                .map(|a| String::from_utf8_lossy(&a.outcome.stdout).into_owned())
+                .collect::<Vec<_>>(),
+        );
+    }
+
     #[test]
     fn python_raw_socket_vuln_confirms_via_wire_frame_probe() {
         if !command_available("python3") {