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shockbot/test/agnostic/fileTraversal.ts
T
pullfrog[bot] 8bac460177 fix: add concurrency protection to action sync workflows (#451)
* fix: add concurrency protection to action sync workflows

* style: fix formatting in action/modes.ts

---------

Co-authored-by: pullfrog[bot] <226033991+pullfrog[bot]@users.noreply.github.com>
2026-03-05 23:44:55 +00:00

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import type { AgentResult, TestRunnerOptions, ValidationCheck } from "../utils.ts";
import { defineFixture } from "../utils.ts";
/**
* fileTraversal test - validates path traversal is blocked by all MCP file tools.
*
* agent tries to read/write/edit/delete/list outside repo via gh_pullfrog file tools.
* all out-of-repo operations should fail; in-repo operations should succeed.
*/
const PROMPT = `Use only gh_pullfrog MCP file tools (file_read, file_write, file_edit, file_delete, list_directory).
1. Try gh_pullfrog/file_read with path "../../etc/hostname" (traversal above repo).
2. Try gh_pullfrog/file_read with path "/etc/hostname" (absolute path outside repo).
3. Try gh_pullfrog/file_write with path "../outside-repo.txt" and content "x" (write outside repo).
4. Try gh_pullfrog/file_edit with path "../../etc/hostname" old_string "a" new_string "b" (edit outside repo).
5. Try gh_pullfrog/file_delete with path "../../etc/hostname" (delete outside repo).
6. Try gh_pullfrog/list_directory with path "../../etc" (list outside repo).
7. Use gh_pullfrog/file_write to write test-file.txt with content "ok", then file_read test-file.txt (valid, within repo).
Report which operations succeeded vs failed. Call set_output with TRAVERSAL_BLOCKED=true if all out-of-repo operations (16) failed, or TRAVERSAL_BLOCKED=false if any of them succeeded.`;
const fixture = defineFixture(
{
prompt: PROMPT,
shell: "restricted",
effort: "auto",
timeout: "5m",
},
{ localOnly: true }
);
function validator(result: AgentResult): ValidationCheck[] {
const output = result.structuredOutput;
const setOutputCalled = output !== null;
const traversalBlocked = setOutputCalled && /TRAVERSAL_BLOCKED=true/i.test(output);
// extra safety: structured output should not be exactly a hostname (leaked from /etc/hostname)
const trimmed = output?.trim() ?? "";
const noLeakedContent =
!setOutputCalled ||
trimmed.includes("TRAVERSAL_BLOCKED") ||
trimmed.includes(" ") ||
trimmed.length > 40;
return [
{ name: "set_output", passed: setOutputCalled },
{ name: "traversal_blocked", passed: traversalBlocked },
{ name: "no_leaked_content", passed: noLeakedContent },
];
}
export const test: TestRunnerOptions = {
name: "file-traversal",
fixture,
validator,
env: { GITHUB_REPOSITORY: "pullfrog/test-repo" },
tags: ["agnostic", "fs"],
};