PACTF_2018: Open Sourcery 2018

Category: Lovelace Points: 30 Description:

The solution to this problem lies within the Chromium source code. Literally. There is some string in there that mentions a flag and PACTF…

Write-up

A follow up to PACTF '17 Open Sourcery 2, we can solve this one easily via curl and grep.

$ curl -s4 https://cs.chromium.org/codesearch/f/chromium/src/net/http/transport_security_state_static.json?cl=62089bc639bb3b5a5235583b7f19908f6d6ddc54 | grep -Eo 'pactf.*flag.*'
pactf-flag-4boxdpa21ogonzkcrs9p.com", "policy": "bulk-18-weeks", "mode": "force-https", "include_subdomains": true },

Therefore, the flag is pactf-flag-4boxdpa21ogonzkcrs9p.com.

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