Are your Secrets Safe In Python?
On scrolling through Hackernews, I stumbled upon this article where Jesse points out how you or your organization can have secrets hidden in the form of pyc files.
While Jesse's code has scrolled through Github repos and intimated the code owners, there is a good chance that our private repo could have some hanging around.
I modified the code to scroll through Saama's private repositories. Gladly I didn't find any pyc files checked in.
You can use the same code to scroll through your private repositories.
Dependencies
pip install PyGithub
pip install uncompyle6
Code
If you want to jump ahead to the whole code checkout the Github repo
- Import necessary packages
import base64
import io
import os
import tempfile
import uncompyle6
from github import Github
- Authenticate with Github
Create a private access token and use it to authenticate yourself
GITHUB_KEY = <GITHUB_ACCESS_TOKEN>
g = Github(GITHUB_KEY)
- Get all repos given an organization
repos = g.get_organization(<ORGANIZATION>).get_repos(type="private")
- Find files with *.pyc extension
for repo in repos:
print (repo)
try:
contents = repo.get_contents("")
except:
continue
for file_ in contents:
try:
extension = file_.name.split(".")[1]
except IndexError:
extension = None
if file_.name in secrets or ( extension and extension == "pyc"):
items.append(file_)
- If there are no
pycfiles, you are good to go
if not items:
print ("No files found, you are good!")
- If any
pycfiles might contain secrets decompile and print them out
for item in items:
print(f"DECOMPILING REPO https://github.com/{item.repository.full_name}")
print(f"OWNER TYPE: {item.repository.owner.type}")
try:
contents = base64.b64decode(item.content)
with tempfile.NamedTemporaryFile(suffix=".pyc") as f:
f.write(contents)
f.seek(0)
out = io.StringIO()
uncompyle6.decompile_file(f.name, out)
out.seek(0)
print(out.read())
except Exception as e:
print(e)
print(f"COULD NOT DECOMPILE REPO https://github.com/{item.repository.full_name}")
continue
print("\n\n\n")
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