ModSecurity supplies an array of request and response filtering rules and other security features to the Apache HTTP Server. ModSecurity is an open source web application layer firewall.
Questions tagged [mod-security]
344 questions
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Enable modsecurity SecRuleEngine On for only a specific directory
Running Apache 2.2.x, modSecurity 2.8.0
I'm trying to get something like this working:
# Default recommended configuration
SecRuleEngine DetectionOnly
# Settings options: DetectionOnly,On,Off
# Only enable full security on candidate facing…

Njna Grimsdottir
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how to modificate modsecurity rule action for only one parameter?
I have a modsecurity with Core Rule Set.
And I have POST-request with 3 parameters:
Par1 = "base64-encoded XML "&
Par2 = "url" &
Par3 = "hash".
I want to modificate CRS rules to base64Decode only Par1 and use Par2 & Par3 'as is'.
I tried to use…

Vladimir
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mod_security: disable cookie verification causing SQLI false positive
I'm trying to configure mod_security on CentOS 7 for apache2.4 with the OWASP ruleset.
The thing is my web app generates a cookie with -- characters and it gets flagged as an SQLI. I read the following article how to whitelist a certain cookie…

sebclaut
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Modsecurity : Creating a new Request Header from SecRule
Consider the following redirect SecRule which is activated from a Lua script
SecRule &TX:SQLI "@eq 1" "id:'129793',phase:2,t:none,redirect:http://www.example.com/failed.html,msg:'SQLi Injection Payload Found',setvar:REQUEST_HEADERS:Blocked"
When…

Futh
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Prevent logging of issues with 127.0.0.1 in mod_security logs
I'm trying to configure modsecurity to not log any issues originating from 127.0.0.1 but I have had no luck with the following rules.
SecRule REMOTE_ADDR "@ipMatch 127.0.0.1" "id:26091975,phase:2,pass,nolog,allow,ctl:ruleEngine=Off"
SecRule…

Citricguy
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Remove IP from modsecurity blacklist
I have a CentOS 7.2 server with apache. I installed and configured modsecurity and I did some tests from my home and now my IP si blocked.
Where is stored the blacklist for modsecurity? I stopped the iptables and fail2ban but I'm still blocked.…

antiks
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mod_security forcing to redirect to Apache test page
i have installed drupal and installed couple of modules to provide the admin export to excel feature. when i click on the export button the page is getting redirected to Apache test page. I have done some R&D and commented #Include…

Suneel Kumar P
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1 answer
Disabling ModSecurity's SQL injection Rule
I've been trying to disable mod_security sql injection rule by adding this to the conf file
SecRuleRemoveById 981172
SecRuleRemoveById 981243
SecRuleRemoveById 981173
SecRuleRemoveById 981249
SecRuleRemoveById 981318
SecRuleRemoveById…

DavidSmith
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Modsecurity Ignore/Whitelist IP
I have looked around on the net and have seen many common answers for this , however, none of them are working.
I am trying to use this to ignore whenever our scans kick off in the morning.
SecRule REMOTE_HOST "@ipmatch 99.123.33.87"…

LUser
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SecRuleEngine Off not working on a single domain in virtual host
I have modSecurity installed and working on a server with multiple hosts and I want to disable some rules for one host only. This is what is what I put in the virtual host file:
SecRuleEngine On
SecRuleRemoveById…

williamsdb
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1 answer
Apache 2: Limit Ressources
I'm running some web pages on apache 2.4.
At the moment I can see a lot of connections like these on status-page:
Srv PID Acc M CPU SS Req Conn Child Slot Client VHost Request
2-0 - 0/0/5 . 1297.48 944 2482371 0.0 0.00 0.26 …

MyFault
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modsecurity whitelisting certian types of cookies
I am seeing cookies being generated on our server which appear to be from 3rd party objects in the site and don't show themselves when one logs in or navigates through the site.
The cookies are random but all start with Wm. So some of them might be…

LUser
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How install PHP 5.4, mod_security and mod_evasive together without conflict
I need create webserver with PHP 5.4, and install mod_security and mod_evasive. But when I try to join the php 5.4 and the mods on an EC2 server, it returns an error of conflict between the versions httpd. I followed the tutorial link trying to do…

Tiago Souza
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mod_security installation not creating /usr/share/modsecurity-crs/
I have a server running ubuntu 14 lamp
I´ve installed mod_security:
apt-get install libapache2-modsecurity
then decided to uninstall using this command:
sudo apt-get remove libapache2-modsecurity
Then deleted manually (ftp) some files and folders…

Frederico Lopes
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1 answer
security2_module for apache is causing the “Forbidden You don't have permission to access / on this server” message
I installed the security2 module to my apache server by adding these following lines to my httpd.conf:
Include crs/owasp-modsecurity-crs/modsecurity_crs_10_setup.conf
Include…

VaTo
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