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 Topic: How to verify mod security is running? |
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Redebo
Joined: 13 Feb 2006
Posts: 4
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 Posted: Mon 13 Feb '06 7:30 Post subject: How to verify mod security is running? |
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Hello all.
I'm new at running apache servers and as such am fairly paranoid about security. I just got my first server up and running last night and in my quest for more information stumbled upon this place.
I quickly learned that the module mod_security is very important to have, so I immediately d/l'ed and installed it using Steffen's binaries and sample config guide.
My question is, how can I verify that the module has loaded correctly and that it is working?
I see this in my error log:
[Sun Feb 12 22:23:44 2006] [notice] mod_security/1.9.2 configured
[Sun Feb 12 22:23:44 2006] [notice] Apache/2.0.55 (Win32) configured -- resuming normal operations
[Sun Feb 12 22:23:44 2006] [notice] Server built: Oct 9 2005 19:16:56
and I can only assume that its working from that first line.
If I keep an eye on the sec.log will I see the foiled malicious attempts show up there?
Thanks in advance! |
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James Blond
Moderator
Joined: 19 Jan 2006
Posts: 7298
Location: Germany, Next to Hamburg
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| Posted: Mon 13 Feb '06 12:14 Post subject: |
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If there is no error message from the apache, mod_security works correcly. If Apache can not load a module it will show it to you.
If you have installed PHP on the server
make a page info.php
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<?php
phpinfo();
?>
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Call it via browser and there you can also see the loaded Modules from Apache |
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Steffen
Moderator
Joined: 15 Oct 2005
Posts: 3058
Location: Hilversum, NL, EU
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| Posted: Mon 13 Feb '06 13:58 Post subject: |
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As James says, your mod_security is loaded correct.
Malicious attempts are showing up in the error.log and more detailed in the sec.log.
When you use my conf, try the following to test:
http://www.yourdomain.com/?highlight=%27
This should trigger the "phpBB attack" rule.
Steffen |
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jworisek
Joined: 21 Feb 2007
Posts: 2
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| Posted: Wed 21 Feb '07 0:28 Post subject: |
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I am also having trouble verifying that mod_security is running...
I am using apache 2.0.52
mod_security-2.0.4-2.0.x-w32.zip installed
I see this in my error log:
[Tue Feb 20 15:47:22 2007] [notice] ModSecurity for Apache 2.0.4 configured
This is in my http.conf:
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LoadModule unique_id_module modules/mod_unique_id.so
LoadModule security2_module modules/mod_security2/mod_security2.so
<IfModule mod_security.c>
# Turn ModSecurity On
SecFilterEngine On
#SecFilterScanPOST On
SecFilterCheckURLEncoding On
SecFilterCheckUnicodeEncoding Off
# Accept almost all byte values
SecFilterForceByteRange 1 255
# Server masking is optional
# SecServerSignature "Not Important"
#SecUploadDir logs
#SecUploadKeepFiles Off
# Only record the interesting stuff
SecAuditEngine On
# RelevantOnly
SecAuditLog logs/sec.log
## -- Common attacks --------------------
SecFilterDefaultAction "deny,log,msg:'Common attacks',status:403"
#Web Proxy GET Request
SecFilter "^GET (http|https|ftp)\:/"
#Web Proxy HEAD Request
SecFilter "^HEAD (http|https|ftp)\:/"
#Proxy POST Request
SecFilter "^POST (http|https|ftp)\:/"
#Proxy CONNECT Request
SecFilterSelective THE_REQUEST "^CONNECT "
# Only accept request encodings we know how to handle.
SecFilterSelective REQUEST_METHOD "!^(GET|HEAD)$" chain
SecFilterSelective HTTP_Content-Type "!(^application/x-www-form-urlencoded$|^multipart/form-data;)"
# Do not accept GET or HEAD requests with bodies
SecFilterSelective REQUEST_METHOD "^(GET|HEAD)$" chain
SecFilterSelective HTTP_Content-Length "!^$"
# Restrict which request methods can be used
SecFilterSelective REQUEST_METHOD "!^(GET|HEAD|POST)$"
# Restrict protocol versions.
SecFilterSelective SERVER_PROTOCOL "!^HTTP/(0\.9|1\.0|1\.1)$"
# Require Content-Length to be provided with every POST request.
SecFilterSelective REQUEST_METHOD "^POST$" chain
SecFilterSelective HTTP_Content-Length "^$"
# Don't accept transfer encodings we know we don't know how to handle
SecFilterSelective HTTP_Transfer-Encoding "!^$"
## -- PHP attacks --------------------
SecFilterSignatureAction "log,deny,msg:'PHP attack'"
# Possible code execution attack (targets valid PHP streams constructs)
SecFilterSelective ARGS_NAMES "^php:/"
#phpBB attack
SecFilterSelective ARG_highlight "(\x27|%27|\x2527|%2527)"
## -- Awstats-------------------------
SecFilterSignatureAction "log,deny,msg:'Awstats Attack'"
SecFilterSelective ARGS_NAMES "configdir"
## -- SQL Injection Attacks --------------------
SecFilterSignatureAction "log,deny,msg:'SQL Injection attack'"
# Generic
SecFilterSelective ARGS "delete[[:space:]]+from"
SecFilterSelective ARGS "drop[[:space:]]+database"
SecFilterSelective ARGS "drop[[:space:]]+table"
SecFilterSelective ARGS "drop[[:space:]]+column"
SecFilterSelective ARGS "drop[[:space:]]+procedure"
SecFilterSelective ARGS "create[[::space:]]+table"
SecFilterSelective ARGS "update.+set.+="
SecFilterSelective ARGS "insert[[:space:]]+into.+values"
SecFilterSelective ARGS "select.+from"
SecFilterSelective ARGS "bulk[[:space:]]+insert"
SecFilterSelective ARGS "union.+select"
SecFilterSelective ARGS "or.+1[[:space:]]*=[[:space:]]1"
SecFilterSelective ARGS "alter[[:space:]]+table"
SecFilterSelective ARGS "or 1=1--'"
SecFilterSelective ARGS "'.+--"
# MySQL
SecFilterSelective ARGS "into[[:space:]]+outfile"
SecFilterSelective ARGS "load[[:space:]]+data
SecFilterSelective ARGS "/\*.+\*/"
## -- Command execution --------------------
SecFilterSignatureAction "log,deny,msg:'Command execution attack'"
SecFilterSelective ARGS_VALUES "^(uname|id|ls|rm|kill)"
SecFilterSelective ARGS_VALUES "^(ls|id|pwd|wget)"
SecFilterSelective ARGS_VALUES ";[[:space:]]*(ls|id|pwd|wget)"
</IfModule>
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I installed the Visual C++ Package. Should the installer disappear when finished without giving an "installation complete" dialogue?
It doesn't show up with phpinfo(); and trying the phpBB attack did nothing but make the page load blank.
Any suggestions would be appreciated. |
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jworisek
Joined: 21 Feb 2007
Posts: 2
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| Posted: Wed 21 Feb '07 1:33 Post subject: |
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I also tried the sampe from the Readme First file:
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SecRuleEngine On
SecDefaultAction log,auditlog,deny,status:403,phase:2,t:lowercase,t:replaceNulls,t:compressWhitespace
SecAuditEngine RelevantOnly
SecAuditLogType Serial
SecAuditLog logs/mod_security2.log
## -- General rules --------------------
SecRule ARGS "c:/" t:normalisePathWin
SecRule ARGS "\.\./" t:normalisePathWin
SecRule ARGS "d:/" t:normalisePathWin
## -- phpBB attack --------------------
SecRule ARGS:highlight "(\x27|%27|\x2527|%2527)"
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Same results. |
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