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add chained regex for rule 941310 to not match japan word 'company' 

Resolves: rhbz#2040257
This commit is contained in:
Richard Lescak 2023-04-03 15:48:02 +02:00
parent 5ef7dd5617
commit 24147a7348
2 changed files with 23 additions and 1 deletions
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16
mod_security_crs-rule-941310-dont-match-japanese-word.patch Normal file
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@ -0,0 +1,16 @@
--- a/rules/REQUEST-941-APPLICATION-ATTACK-XSS.conf 2020-07-01 18:38:19.000000000 +0200
+++ b/rules/REQUEST-941-APPLICATION-ATTACK-XSS.conf 2023-02-16 09:14:52.151838881 +0100
@@ -543,8 +543,11 @@
ctl:auditLogParts=+E,\
ver:'OWASP_CRS/3.3.4',\
severity:'CRITICAL',\
- setvar:'tx.xss_score=+%{tx.critical_anomaly_score}',\
- setvar:'tx.anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
+ chain"
+ SecRule REQUEST_COOKIES|!REQUEST_COOKIES:/__utm/|REQUEST_COOKIES_NAMES|ARGS_NAMES|ARGS|REQUEST_FILENAME|XML:/* "@rx [^\xe4]\xbc[^\x9a][^\xbe>]*[^\xe7][^\xa4][\xbe>]|<[^\xbe]*[^\xe7][^\xa4]\xbe" \
+ "t:none,t:lowercase,t:urlDecode,t:htmlEntityDecode,t:jsDecode,\
+ setvar:'tx.xss_score=+%{tx.critical_anomaly_score}',\
+ setvar:'tx.anomaly_score_pl1=+%{tx.critical_anomaly_score}'"
#
# https://nedbatchelder.com/blog/200704/xss_with_utf7.html

8
mod_security_crs.spec
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@ -1,7 +1,7 @@
Summary: ModSecurity Rules
Name: mod_security_crs
Version: 3.3.4
Release: 1%{?dist}
Release: 2%{?dist}
License: ASL 2.0
URL: https://www.owasp.org/index.php/Category:OWASP_ModSecurity_Core_Rule_Set_Project
Group: System Environment/Daemons
@ -10,6 +10,7 @@ BuildArch: noarch
Requires: mod_security >= 2.8.0
Obsoletes: mod_security_crs-extras < 3.0.0
Patch0: mod_security_crs-early-blocking.patch
Patch1: mod_security_crs-rule-941310-dont-match-japanese-word.patch
%description
This package provides the base rules for mod_security.
@ -17,6 +18,7 @@ This package provides the base rules for mod_security.
%prep
%setup -q -n coreruleset-%{version}
%patch0 -p1 -b.early_blocking
%patch1 -p1 -b.rule_941310
%build
@ -48,6 +50,10 @@ done
%{_datarootdir}/mod_modsecurity_crs
%changelog
* Fri Mar 31 2023 Richard Lescak <rlescak@redhat.com> - 3.3.4-2
- add chained regex for rule 941310 to not match japan word 'company'
- Resolves: rhbz#2040257
* Thu Dec 08 2022 Luboš Uhliarik <luhliari@redhat.com> - 3.3.4-1
- new version 3.3.4
- Resolves: #2141432 - [RFE] upgrade mod_security_crs to latest upstream 3.3.x