CVE-2022-23651 b2-sdk-python TOCTOU application key disclosure

b2-sdk-python is a python library to access cloud storage provided by backblaze. Linux and Mac releases of the SDK version 1.14.0 and below contain a key disclosure vulnerability that, in certain conditions, can be exploited by local attackers through a time-of-check-time-of-use TOCTOU race...

CVE-2022-23651

The CVE-2022-23651 issue affects b2-sdk-python 1.14.0 and earlier on Linux/macOS, where SqliteAccountInfo stores API keys and bucket mappings in a local database file. The vulnerability is a TOCTOU race: the database file is created world-readable and briefly becomes private, allowing a local att...