
Krigshaw
126 posts








Race conditions in OAuth flows can still happen in custom implementations. Here's how to find it: During the token exchange, the server is supposed to treat an authorization code as single-use. If you race the token endpoint by sending parallel requests with the same code simultaneously, vulnerable implementations may issue multiple valid access tokens and some won't properly revoke all of them. Tools like Turbo Intruder or even a simple multi-threaded script sending concurrent requests to the callback URL with different tokens may trigger it. Further reading here: blog.avuln.com/article/4




HackerNotes TLDR for episode 167! blog.criticalthinkingpodcast.io/p/hackernotes-… ►⠀Pre-position on acquisition targets: find bugs before the deal closes, document everything with screenshots ►⠀Third-party vendors reusing credentials across environments create critical supply chain attack paths ►⠀Stolen research is a real threat: over-detailed reports can leak through Slack integrations or duplicate collaborators ►⠀Protect your intellectual property: watermark reports, host exploits on your own infra, don't reveal full chains





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