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Updated cookie exclusions rules #10

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Merged
jsrobinson3 merged 1 commit into from
Mar 23, 2026
Merged

Updated cookie exclusions rules #10

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26 changes: 18 additions & 8 deletions src/nssec/modules/waf/config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -209,14 +209,24 @@
# These rules prevent false positives on the NetSapiens management UI
# and API endpoints while keeping CRS protection active for everything else.

# ---- Admin UI form submissions trigger SQL injection false positives ----
SecRuleUpdateTargetById 942100 "!REQUEST_COOKIES"
SecRuleUpdateTargetById 942200 "!REQUEST_COOKIES"

# ---- Third-party tracking cookies trigger RCE false positives ----
# Reddit (_rdt_*), Google (_ga, _gid), Facebook (_fbp) etc. use delimiters
# that match shell patterns like ~N (directory stack) or command separators.
SecRuleUpdateTargetById 932270 "!REQUEST_COOKIES"
# ---- Admin UI form submissions and third-party tracking cookies ----
# Cookies from admin UI sessions trigger SQL injection false positives (942100,
# 942200). Reddit (_rdt_*), Google (_ga, _gid), Facebook (_fbp) etc. use
# delimiters that match shell patterns like ~N (directory stack), triggering
# RCE false positives (932270).
#
# Uses runtime ctl:ruleRemoveTargetById so this works regardless of whether
# the exclusions file loads before or after the CRS rules (e.g. when the
# default Debian wildcard IncludeOptional /etc/modsecurity/*.conf picks up
# this file alphabetically before the CRS rules are loaded).
SecAction \
"id:1000009,\\
phase:1,\\
pass,\\
nolog,\\
ctl:ruleRemoveTargetById=942100;REQUEST_COOKIES,\\
ctl:ruleRemoveTargetById=942200;REQUEST_COOKIES,\\
ctl:ruleRemoveTargetById=932270;REQUEST_COOKIES"

# ---- NS API endpoints use base64 in query strings ----
SecRule REQUEST_URI "@beginsWith /ns-api/" \\
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