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redfr0g

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1 points·by redfr0g·há 3 meses·0 comments

Breaking n8n's Expression Sandbox into RCE (CVE-2026-27577) with striga.ai

striga.ai
9 points·by redfr0g·há 4 meses·1 comments

Why Cloudflare rule order matters?

brzozowski.io
66 points·by redfr0g·há 4 meses·13 comments

One year with bug bounty automation

brzozowski.io
1 points·by redfr0g·há 5 meses·0 comments

Show HN: Atri Reports – Automated security report writing with DOCX

github.com
2 points·by redfr0g·ano passado·0 comments

comments

redfr0g
·há 4 meses·discuss
How Striga uncovered a critical sandbox escape and unsanitized node name injection in n8n's expression engine, chaining them into full Remote Code Execution.
redfr0g
·há 4 meses·discuss
I think "as long as it was not a terminating action" is crucial here. The way how Cloudflare dashboard is designed right now may put you in false sense of security by implying that all rules will be evaluated one after another. In my opinion, they could do a better job UI-wise on highlighting, that a terminating action will result in skipping all subsequent rules.
redfr0g
·há 6 meses·discuss
Cybersecurity and research blog: https://www.brzozowski.io/