Security: Missing Input Validation in Dropbox Serializer credentials_are_valid#11791
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The DropboxSerializer.credentials_are_valid method accesses user_settings.external_accounts[0] without checking if the list is empty. This could cause an IndexError exception. Additionally, the method creates a Dropbox client with an OAuth key without proper validation of the key format or source. Signed-off-by: tomaioo <203048277+tomaioo@users.noreply.github.com>
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Summary
Security: Missing Input Validation in Dropbox Serializer credentials_are_valid
Problem
Severity:
Medium| File:addons/dropbox/serializer.py:L14The DropboxSerializer.credentials_are_valid method accesses user_settings.external_accounts[0] without checking if the list is empty. This could cause an IndexError exception. Additionally, the method creates a Dropbox client with an OAuth key without proper validation of the key format or source.
Solution
Add explicit bounds checking before accessing external_accounts[0]. Validate the OAuth key format before creating the Dropbox client. Consider using a try-except block specifically for IndexError.
Changes
addons/dropbox/serializer.py(modified)