gyrospectre

import time
import socket

BANNER = [
  "bash: cannot set terminal process group (5237): Inappropriate ioctl for device",
  "bash: no job control in this shell",
]
LISTEN_ON = '0.0.0.0'
PORT = 51337
LOGFILE = './honey.log'

gyrospectre

$ curl -X POST <API URL> -d "{test12344: 'test1'}"
{"test12344": "test1"}

$./exploit.sh ...
[+] Creating evil yaml with payload 'switch_runtime.py' and data 'exploit.tmp'
[+] Done, evil yaml at evil_yaml
{"Output": "Successfully took over the bootstrap runtime"}

$ curl -X POST <API URL> -d "{test12344: 'test1'}"
Exception('Runtime has been tampered with, aborting! File: /tmp/new_runtime.py')

gyrospectre

def get_entrypoint():
    stack = inspect.stack()

    entrypoint = {
        'filename': stack[-1].filename,
        'code_context': stack[-1].code_context
    }
    return entrypoint

def check_entrypoint():

gyrospectre

{
    "stack_hash": "2f74ab12d499b7e418d71593dcd1eff56c81a764ec44a2e01a675066bf303047",
    "entry_frame": {
        "filename": "/var/runtime/bootstrap.py",
        "code_context": [
            "    main()\n"
        ]
    }
}

gyrospectre

def get_stackinfo():
    stack = inspect.stack()
    stack_hash = hashlib.sha256(str(stack).encode('utf-8')).hexdigest()

    stack_info = {
        'stack_hash': stack_hash,
        'entry_frame': {
            'filename': stack[-1].filename,
            'code_context': stack[-1].code_context
        }

gyrospectre

const StackTrace = require('error-stack-parser')

function check_entrypoint () {
    var st = StackTrace.parse(new Error())
    var entrypoint = st[ st.length -1 ]

    console.log(serialize(entrypoint))

    entry_file = entrypoint.fileName
    if (!entry_file.startsWith('/var/runtime/')) {

gyrospectre

START RequestId: ecc7732f-6d4d-484c-92b3-fdf41508ad2a Version: $LATEST
[DEBUG] 2021-10-02T05:41:24.876Z Starting new HTTPS connection (1): en713emlh144f.x.pipedream.net:443
END RequestId: ecc7732f-6d4d-484c-92b3-fdf41508ad2a

gyrospectre

    FrameInfo(
        frame=<frame at 0x7fead1ce39a0, file '/tmp/new_runtime.py', line 168, code main>,
        filename='/tmp/new_runtime.py',
        lineno=168, function='main',
        code_context=['    backdoored_run(app_root, handler, lambda_runtime_api_addr)\n'],
        index=0
    ),

gyrospectre

apiVersion: v1
kind: options
spec:
  config:
    decorators:
      load:
      - SELECT uuid AS host_uuid FROM system_info;
      - SELECT hostname AS hostname FROM system_info;
      - SELECT user AS username FROM logged_in_users WHERE user <> '' ORDER BY time LIMIT 1
    options: