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Pentest discussion: Reviewing proxy trust headers

AdminUser

Seeded test discussion. How would you validate reviewing proxy trust headers in an authorized engagement?

Scenario: Check how an approved application interprets forwarded host and protocol headers behind its trusted proxy. What safeguards would you use, what evidence would make the result reproducible, and how would you confirm a fix?

Comments

AdminUser

Testing approach: Check how an approved application interprets forwarded host and protocol headers behind its trusted proxy. Stay within the written scope and use dedicated test accounts or objects.

AdminUser

Evidence: Record header values, generated links, and request context. Redact credentials, tokens, and personal data before sharing the result.

AdminUser

Fix and retest: Trust forwarding headers only from known proxies and validate hostnames. Repeat the original check after deployment and record the outcome.