8000 docs: add warning about default charsets modification by fzipi · Pull Request #4003 · coreruleset/coreruleset · GitHub
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docs: add warning about default charsets modification #4003

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Feb 17, 2025
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5 changes: 5 additions & 0 deletions crs-setup.conf.example
Original file line number Diff line number Diff line change
Expand Up @@ -644,6 +644,11 @@ SecDefaultAction "phase:2,log,auditlog,pass"

# Content-Types charsets that a client is allowed to send in a request.
# The content-types are enclosed by |pipes| as delimiters to guarantee exact matches.
#
# You c 507A an add additional character sets if something more exotic is required. One caveat: you will also need to edit 'regex-assembly/include/allowed-charsets.ra' and rebuild all the associated regular expressions using `crs-toolchain regex update --all`. See https://coreruleset.org/docs/6-development/6-2-crs-toolchain/.
#
# Warning: If the WAF engine is unable to fully and correctly decode a newly added character encoding then this can lead to a full request body or response body bypass. Additional permitted character encodings should be added with caution and tested to ensure inspection is not affected.
#
# Default: |utf-8| |iso-8859-1| |iso-8859-15| |windows-1252|
# Uncomment this rule to change the default.
#SecAction \
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