fix(exec): detect cmd wrapper carriers (#62439)

* fix(exec): detect cmd wrapper carriers

* fix(exec): block env cmd wrapper carriers

* fix: keep cmd wrapper carriers approval-gated (#62439) (thanks @ngutman)
This commit is contained in:
Nimrod Gutman
2026-04-07 14:27:06 +03:00
committed by GitHub
parent 7d2088132d
commit de6bac331c
5 changed files with 133 additions and 36 deletions

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@@ -40,6 +40,7 @@ Docs: https://docs.openclaw.ai
- Sessions/model selection: resolve the explicitly selected session model separately from runtime fallback resolution so session status and live model switching stay aligned with the chosen model.
- iOS/Watch exec approvals: keep Apple Watch review and approval recovery working while the iPhone is locked or backgrounded, including reconnect recovery, pending approval persistence, notification cleanup, and APNs-backed watch refresh recovery. (#61757) Thanks @ngutman.
- Nodes/exec approvals: keep `host=node` POSIX transport shell wrappers (`/bin/sh -lc ...`) aligned with inner-command allowlist analysis so allowlisted scripts stop prompting unnecessarily, while Windows `cmd.exe` wrapper runs stay approval-gated. (#62401) Thanks @ngutman.
- Nodes/exec approvals: keep Windows `cmd.exe /c` wrapper runs approval-gated even when `env` carriers, including env-assignment carriers, wrap the shell invocation. (#62439) Thanks @ngutman.
- Agents/context overflow: combine oversized and aggregate tool-result recovery in one pass and restore a total-context overflow backstop so recoverable sessions retry instead of failing early. (#61651) Thanks @Takhoffman.
- Agents/exec: preserve explicit `host=node` routing under elevated defaults when `tools.exec.host=auto`, fail loud on invalid elevated cross-host overrides, and keep `strictInlineEval` commands blocked after approval timeouts instead of falling through to automatic execution. (#61739) Thanks @obviyus.
- Providers/Ollama: honor the selected provider's `baseUrl` during streaming so multi-Ollama setups stop routing every stream to the first configured Ollama endpoint. (#61678)

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@@ -8,6 +8,7 @@ import {
isShellWrapperExecutable,
normalizeExecutableToken,
resolveDispatchWrapperTrustPlan,
resolveShellWrapperTransportArgv,
unwrapEnvInvocation,
unwrapKnownDispatchWrapperInvocation,
unwrapKnownShellMultiplexerInvocation,
@@ -382,6 +383,25 @@ describe("hasEnvManipulationBeforeShellWrapper", () => {
});
});
describe("resolveShellWrapperTransportArgv", () => {
test.each([
{
argv: ["env", "cmd.exe", "/d", "/s", "/c", "echo hi"],
expected: ["cmd.exe", "/d", "/s", "/c", "echo hi"],
},
{
argv: ["env", "FOO=bar", "cmd.exe", "/d", "/s", "/c", "echo hi"],
expected: ["cmd.exe", "/d", "/s", "/c", "echo hi"],
},
{
argv: ["bash", "script.sh"],
expected: null,
},
])("resolves wrapper transport argv for %j", ({ argv, expected }) => {
expect(resolveShellWrapperTransportArgv(argv)).toEqual(expected);
});
});
describe("extractShellWrapperCommand", () => {
test.each([
{

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@@ -56,6 +56,48 @@ export type ShellWrapperCommand = {
command: string | null;
};
function resolveShellWrapperSpecAndArgvInternal(
argv: string[],
depth: number,
): { argv: string[]; wrapper: ShellWrapperSpec; payload: string } | null {
if (!isWithinDispatchClassificationDepth(depth)) {
return null;
}
const token0 = argv[0]?.trim();
if (!token0) {
return null;
}
const dispatchUnwrap = unwrapKnownDispatchWrapperInvocation(argv);
if (dispatchUnwrap.kind === "blocked") {
return null;
}
if (dispatchUnwrap.kind === "unwrapped") {
return resolveShellWrapperSpecAndArgvInternal(dispatchUnwrap.argv, depth + 1);
}
const shellMultiplexerUnwrap = unwrapKnownShellMultiplexerInvocation(argv);
if (shellMultiplexerUnwrap.kind === "blocked") {
return null;
}
if (shellMultiplexerUnwrap.kind === "unwrapped") {
return resolveShellWrapperSpecAndArgvInternal(shellMultiplexerUnwrap.argv, depth + 1);
}
const wrapper = findShellWrapperSpec(normalizeExecutableToken(token0));
if (!wrapper) {
return null;
}
const payload = extractShellWrapperPayload(argv, wrapper);
if (!payload) {
return null;
}
return { argv, wrapper, payload };
}
function isWithinDispatchClassificationDepth(depth: number): boolean {
return depth <= MAX_DISPATCH_WRAPPER_DEPTH;
}
@@ -213,42 +255,16 @@ function extractShellWrapperCommandInternal(
rawCommand: string | null,
depth: number,
): ShellWrapperCommand {
if (!isWithinDispatchClassificationDepth(depth)) {
const resolved = resolveShellWrapperSpecAndArgvInternal(argv, depth);
if (!resolved) {
return { isWrapper: false, command: null };
}
const token0 = argv[0]?.trim();
if (!token0) {
return { isWrapper: false, command: null };
}
return { isWrapper: true, command: rawCommand ?? resolved.payload };
}
const dispatchUnwrap = unwrapKnownDispatchWrapperInvocation(argv);
if (dispatchUnwrap.kind === "blocked") {
return { isWrapper: false, command: null };
}
if (dispatchUnwrap.kind === "unwrapped") {
return extractShellWrapperCommandInternal(dispatchUnwrap.argv, rawCommand, depth + 1);
}
const shellMultiplexerUnwrap = unwrapKnownShellMultiplexerInvocation(argv);
if (shellMultiplexerUnwrap.kind === "blocked") {
return { isWrapper: false, command: null };
}
if (shellMultiplexerUnwrap.kind === "unwrapped") {
return extractShellWrapperCommandInternal(shellMultiplexerUnwrap.argv, rawCommand, depth + 1);
}
const wrapper = findShellWrapperSpec(normalizeExecutableToken(token0));
if (!wrapper) {
return { isWrapper: false, command: null };
}
const payload = extractShellWrapperPayload(argv, wrapper);
if (!payload) {
return { isWrapper: false, command: null };
}
return { isWrapper: true, command: rawCommand ?? payload };
export function resolveShellWrapperTransportArgv(argv: string[]): string[] | null {
return resolveShellWrapperSpecAndArgvInternal(argv, 0)?.argv ?? null;
}
export function extractShellWrapperInlineCommand(argv: string[]): string | null {

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@@ -1600,6 +1600,64 @@ describe("handleSystemRunInvoke mac app exec host routing", () => {
}
});
it.each([
{
name: "keeps env cmd.exe transport wrappers approval-gated on Windows",
command: ["env", "cmd.exe", "/d", "/s", "/c"],
},
{
name: "keeps env-assignment cmd.exe transport wrappers approval-gated on Windows",
command: ["env", "FOO=bar", "cmd.exe", "/d", "/s", "/c"],
},
])("$name", async ({ command }) => {
const platformSpy = vi.spyOn(process, "platform", "get").mockReturnValue("win32");
const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), "openclaw-env-cmd-wrapper-allow-"));
try {
const scriptPath = path.join(tempDir, "check_mail.cmd");
fs.writeFileSync(scriptPath, "@echo off\r\necho ok\r\n");
const wrappedCommand = [...command, `${scriptPath} --limit 5`];
await withTempApprovalsHome({
approvals: createAllowlistOnMissApprovals({
agents: {
main: {
allowlist: [{ pattern: scriptPath }],
},
},
}),
run: async () => {
const seenArgv: string[][] = [];
const invoke = await runSystemInvoke({
preferMacAppExecHost: false,
command: wrappedCommand,
cwd: tempDir,
security: "allowlist",
ask: "on-miss",
isCmdExeInvocation: (argv) => {
seenArgv.push([...argv]);
const token = argv[0]?.trim();
if (!token) {
return false;
}
const base = path.win32.basename(token).toLowerCase();
return base === "cmd.exe" || base === "cmd";
},
});
expect(seenArgv).toContainEqual(["cmd.exe", "/d", "/s", "/c", `${scriptPath} --limit 5`]);
expect(invoke.runCommand).not.toHaveBeenCalled();
expectApprovalRequiredDenied({
sendNodeEvent: invoke.sendNodeEvent,
sendInvokeResult: invoke.sendInvokeResult,
});
},
});
} finally {
platformSpy.mockRestore();
fs.rmSync(tempDir, { recursive: true, force: true });
}
});
it("reuses exact-command durable trust for shell-wrapper reruns", async () => {
if (process.platform === "win32") {
return;

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@@ -20,6 +20,7 @@ import {
detectInterpreterInlineEvalArgv,
} from "../infra/exec-inline-eval.js";
import { resolveExecSafeBinRuntimePolicy } from "../infra/exec-safe-bin-runtime-policy.js";
import { resolveShellWrapperTransportArgv } from "../infra/exec-wrapper-resolution.js";
import {
inspectHostExecEnvOverrides,
sanitizeSystemRunEnvOverrides,
@@ -359,10 +360,11 @@ async function evaluateSystemRunPolicyPhase(
.find((entry) => entry !== null) ?? null)
: null;
const isWindows = process.platform === "win32";
// Detect Windows wrapper transport from the original request argv, not the
// analyzed inner shell payload. Once parsing unwraps `cmd.exe /c ...`, the
// inner segments no longer retain the wrapper marker we need for policy.
const cmdInvocation = opts.isCmdExeInvocation(parsed.argv);
// Detect Windows wrapper transport from the same shell-wrapper view used to
// derive the inner payload. That keeps `cmd.exe /c` approval-gated even when
// dispatch carriers like `env FOO=bar ...` wrap the shell invocation.
const cmdDetectionArgv = resolveShellWrapperTransportArgv(parsed.argv) ?? parsed.argv;
const cmdInvocation = opts.isCmdExeInvocation(cmdDetectionArgv);
const durableApprovalSatisfied = hasDurableExecApproval({
analysisOk,
segmentAllowlistEntries,