Modified `is_private_ip` in `app/utils/network.py` to fail securely by returning True (blocking the request) when a hostname cannot be resolved. The previous implementation failed open, creating a risk for Server-Side Request Forgery (SSRF) and DNS rebinding attacks.
Updated corresponding tests to expect the secure behavior.
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
The `_test_webdav_connection` function previously used `urllib.request.urlopen`
to verify connection credentials. This triggers a Bandit B310 warning because
`urllib` supports multiple schemes (like file://, ftp://) and implicitly follows
redirects.
Although scheme checking and a basic `is_private_ip` validation were implemented,
using `urllib.request` remains risky because a public URL could return an
HTTP redirect to a private IP (e.g., 127.0.0.1) which `urllib` would blindly follow,
causing an SSRF (Server-Side Request Forgery) bypass.
This commit replaces `urllib.request` with `httpx.request` using explicitly
`follow_redirects=False`. This eliminates the B310 vulnerability, ensures
requests only hit the specified URL without following potentially malicious
redirects, and standardizes the application on `httpx` for safer HTTP connections.
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
google-labs-jules[bot]