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mastodon/spec/controllers/concerns
Eugen Rochko 21ad21cb50
Improve signature verification safeguards (#8959)
* Downcase signed_headers string before building the signed string

The HTTP Signatures draft does not mandate the “headers” field to be downcased,
but mandates the header field names to be downcased in the signed string, which
means that prior to this patch, Mastodon could fail to process signatures from
some compliant clients. It also means that it would not actually check the
Digest of non-compliant clients that wouldn't use a lowercased Digest field
name.

Thankfully, I don't know of any such client.

* Revert "Remove dead code (#8919)"

This reverts commit a00ce8c92c.

* Restore time window checking, change it to 12 hours

By checking the Date header, we can prevent replaying old vulnerable
signatures. The focus is to prevent replaying old vulnerable requests
from software that has been fixed in the meantime, so a somewhat long
window should be fine and accounts for timezone misconfiguration.

* Escape users' URLs when formatting them

Fixes possible HTML injection

* Escape all string interpolations in Formatter class

Slightly improve performance by reducing class allocations
from repeated Formatter#encode calls

* Fix code style issues
6 years ago
..
account_controller_concern_spec.rb Use raw status code on have_http_status (#7214) 7 years ago
export_controller_concern_spec.rb lint pass 2 (#8878) 6 years ago
localized_spec.rb Misc. typos (#8694) 6 years ago
obfuscate_filename_spec.rb Remove methods from ObfuscateFilename and spec (#3347) 8 years ago
rate_limit_headers_spec.rb Rate limit by user instead of IP when API user is authenticated (#5923) 7 years ago
signature_verification_spec.rb Improve signature verification safeguards (#8959) 6 years ago
user_tracking_concern_spec.rb Fix regeneration marker not expiring (#6290) 7 years ago