Questions about the security of Apache open source software, especially Apache HTTP Server

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What are the consequences of turning on Apache AllowEncodedSlashes?

What are the consequences of turning on Apache AllowEncodedSlashes? I want to turn it on and I want to know if this any worse than any of the other kinds of injection attacks that may occur in web ...
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2k views

NGINX / HTTP TRACE

I have a http server Nginx with HTTP TRACE Enabled. A single nmap --script=http-methods.nse host.name give this result : Not shown: 988 closed ports PORT STATE SERVICE VERSION [...] ...
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39 views

SSL connection between MySQL, Apache and the User's device

I set up SSL connection on my apache web server and I just would like to find out is it enough to secure my connection between the MySQL server, the apache web server and the user's device. Because I ...
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1answer
223 views

How to know an Apache web server mod_cgi module is enabled?

I am currently working on penetration test of a web site that uses an Apache HTTP server. To test a vulnerability which is related to mod_cgi module, I need to know whether this web site uses mod_cgi ...
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84 views

What are the traces of a mysql attack on a server when the attacker has full permissions?

I just turned my server off yesterday, after it began to distribute comment spam across the internet, at an astounding rate over 70 "spams"/min, bottom of the line 1/2 gig ram VPS. I'm still trying to ...
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291 views

Is this slowloris attack or not?

IP is hidden in apache log for privacy, except last octet. /billing is our application start page. But it doesn't make sense that it sends POST requests, and get 500 response. Or maybe this is ...
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270 views

Why are OSX users of my TLS-only site being asked to supply a client certificate?

I purchased a Comodo SSL certificate (OV), and set up the Apache vhost config so that all traffic is forwarded to 443. Intermittently some users are being prompted to supply a client certificate; ...
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352 views

Installed new Wildcard certificates on my server, but still appear as expired on browser [closed]

I have bought new WILDCARD certificates (*.mydomain.com) for my servers. I was able to install successfully on one server. So, I know the files are correct and I was able to verify their validity. ...
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2answers
128 views

Force https, complex implementation

I have a website running on a dedicated server (single IP) on apache. Multiple domains are pointed to the website . For ex: sub.abc.com, sub.bcdaf.com I have now purchased a single SSL certificate ...
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1answer
560 views

What security concerns exist in running a glassfish app directly on port 443

I have installed Apache http server in front of glassfish based on recommendations i had in this question. I have been told that i will run into performance problems along with security issues. I was ...
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1answer
369 views

Exclude file names from mod_security patterns

I have a question regarding mod_security. I have installed mod_security on my server and OWASP core rule set. However, now people are having trouble when accessing my page. For example, one problem ...
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407 views

Checking if Mod_Rewrite is Enabled Remotely

When pentesting it is useful to know when apache mod_rewrite is enabled. But when one comes across a web server that does not utilize PHP it is difficult to tell if mod_rewrite is enabled considering ...
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39 views

Make Apache server only to be avaliable for personal use? [closed]

I'm afraid if I have Apache active that someone can hack into my computer so everytime I had Apache active I went offline (I also installed XAMPP on USB stick because of that fear). How can I make ...
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87 views

Has HTTP bogus request type “COOK” been used in any known website attacks?

An apache web server access weblog shows a request type "COOK" where POST or GET are normally found. Is such a request part of any known web-based site attacks?
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102 views

How to recreate the Freak attack?

Currently I am trying to recreate the Freak attack on a virtual machine. For this purpose I set up a Linux Mint 17.1 system with Apache 2.4.7 (with a self signed certificate) and OpenSSL 1.0.1f. I ...
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138 views

Slow Loris Incomplete GET Request

A slow loris attack is an attack of incomplete GET requests to most famously an Apache server because the server does not timeout the connection made after extremely long periods of time, from my ...
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76 views

Kerberos based infrastructure with artifactory repo for our java artifcts with Apache reverse proxy and mod auth kerb. how can I access with gradle? [closed]

We recently migrated our company to a kerberos-based infrastructure. I successfully set up an Artifactory repo for our java artifacts, with Apache reverse proxy and mod_auth_kerb. How can I access ...
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1answer
3k views

removing SSLv3 does not seem to fix POODLE problem [duplicate]

I have removed SSLv3 from my Apache 2.2.15 ssl.conf file with the line SSLProtocol All -SSLv2 -SSLv3 I have restarted httpd but POODLE tests still show vulnerability exists with POODLE. What else ...
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293 views

Securely send password to script as parameter

I have an expect script on my server which opens a WebDAV connection to another server, expects a username and password, and then sends $arg1 and $arg2 as the username and password respectively. ...
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157 views

Which OWASP modsecurity crs version to install on apache 2.2.22

Hello I am considering installing owasp mod_security crs on an ubuntu 12.04.4 which comes with apache 2.2.22. On the github page I have seen many version's but all tutorials were using 2.2.7 First I ...
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43 views

Mysql Virtual IP and timeout

What are the risk that I encounter when increasing the timeout of a vip between a web server (apache) and mysql cluster (two servers). Actually it is set to 5 minutes. If time_out was 1hour, knowing ...
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1answer
864 views

Strange bug in ModSecurity with the rule 950901

I have a classic ModSecurity configuration (apt-get...) SecRuleEngine Off SecPcreMatchLimit 1000 SecPcreMatchLimitRecursion 1000 SecAction "phase:1,t:none,nolog,pass, \ ...
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92 views

trackback spotted in multple http errors

[Sun May 11 12:24:46 2014] [error] [client private ip] [X_FORWARDED_FOR 27.159.207.165] Path not found: /contact_us_public.php/trackback/, referer: http://www.mydomain.net/contact_us_public.php Does ...
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44 views

How to manage security for multiple PC and VM?

I have a firewall VM which creates I have used to setup subnet for different purposes. For example: (fake ips, of course) 1.1.2.1/24 DMZ 1.1.3.1/24 Internal 1.1.5.1/24 security/logging I use ...
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413 views

Nessus scanner and Red Hat backport security updates

I have asked this question: False positive Apache version in scanner results on Centos I need additional clarification: Do you know if it is possible to configure Nessus to adopt Red Hat backport ...
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1answer
129 views

How to Minimize Apache Loadable Modules (serving MediaWiki)

According to Guide to the Secure Configuration of Red Hat Enterprise Linux 6, there is this policy: "In certain scenarios, it is beneficial to remove certain httpd modules to limit the functionality ...
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1k views

WSO 2.5 Found on Apache

I have found on my web server the file wp-conf.php which when you call it from the browser with a url parameter like wp-conf.php?t7831n=any value shows an interface where you can control the entire ...
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204 views

How Do I Secure Apache Web Server [duplicate]

Possible Duplicate: Apache Server Hardening I'm going to make a web server on Apache 2. What are the security issue I will be looking at? And how do I secure it? I have been reading news ...
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2answers
1k views

Weird IP addresses showing up on my server

I have a personal server located in the US, I use it to execute code which requires a lot of resources. I sometimes have apache running on my server, to test php code. I recently left my apache server ...
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2answers
1k views

Running Apache as system service on Windows 2003 R2 64-bit

Trying to make my point, that running Apache with PHP5 module as Windows service is not secure. All I got to prove it - FTP access to some internal website. So what I did - I uploaded file test.php ...
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1answer
204 views

Google Chrome obsolete cryptography

I have a apache server running and following configuration for ssl: Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains" SSLProtocol -all +TLSv1.2 SSLCompression Off ...
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4answers
701 views

How to secure MySQL database usernames and passwords within a php file? [duplicate]

I am working on a PHP website and my researches showed that it is entirely possible that the server can get hacked and the PHP files may get exposed. I store the MySQL DB Username and Password within ...
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3answers
422 views

Disadvantages of disabling RC4 in SSL/TLS [closed]

Other than requiring more server resources, are there any disadvantages of disabling RC4 from being using by an Apache webserver? My primary concern is preventing access from older browsers.
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2answers
153 views

How to prevent Cookie-Bombs?

Egor Homakov made a nice writeup (Cookie Bomb or let's break the Internet) on how to crash CDNs and other websites with cookies. Although this is a user/browser-side DOS, I'm wondering how one would ...
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1answer
378 views

suspicious http request in logs

I found this request in my Ubuntu 14.04 apache2 access.log: xxx.228.207.244 - - [25/Sep/2014:17:52:03 -0400] "GET ...
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3answers
4k views

How to filter POST requests before they reach PHP on Apache?

I have done URL filtering with .htaccess (using learning and generator), however I am still concerned that any POST request can be submitted to the PHP even there is only one POST form on the website, ...
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1answer
76 views

.htaccess protected folder except IP

I created an e-shop with e-books and they are stored in specific folder which is protected by a .htaccess file : Order deny,allow deny from all allow from 127.0.0.1 The IP is the IP of the webpage, ...
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2answers
149 views

Security risk of using virtual hosts for public and internal sites

I have an Apache server which hosts a public website and an internal website. However, since Apache denotes virtual hosts based on the Host HTTP header, couldn't someone on the Internet request my ...
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2answers
327 views

Clarifying MITM attacks and Digital Certificate requirement

We are running a Portal application for our client with Payment Gateway integrated. Payment gateway uses SSL as it is suppose to be . The concern for me is that our Portal application does not use ...
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1answer
171 views

Dangers of PHP uploading word docs into a quarantine

I plan to write a PHP script which will allow web users to upload MS Word formatted docs. Here are the precautions I am taking: Filenames will be created by me (something like YYYY-MM-DD.doc) Files ...
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1answer
82 views

When can the exploit for CVE: 2006-7098 be used?

I'm studying the vulnerabilities of an old version of Apache, the 1.3.34. And I don't quite understand in what exact situation the CVE 2006-7098 vulnerability can be exploited. The README included in ...
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3answers
1k views

Prevent a server side script from a direct URL access

There is a server side script written in php(say backend_file.php) or coldfusion(say backend_file.cfm). Lets say, i am using Apache and I have a sample web folder (on my Localhost) like: ...
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1answer
437 views

501 Not Implemented ServerInfo.jsp

I looked at my logs from amazon ec2 instance and found the following lines: 94.177.121.102 - - [29/Mar/2014:08:50:52 +0000] "XGET /web-console/ServerInfo.jsp HTTP/1.0" 501 418 "-" "-" 94.177.121.102 ...
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1answer
230 views

Lots of bot hits, referer seems to be the variable

I've recently (over the last 15 minutes) had quite a few hits from the same IP, it's in a country on our blacklist so they just up up on our "Access Denied" page, but I was just interested in what ...
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1answer
2k views

“Must have” and “Preferred Cipher” suites terminology

I have received the following advise to set cipher suites to suitably mitigate Beast attack on a newly setup Apache HTTPD server. Preferred ciphers: RC4-SHA, RC4-MD5 Must Have Ciphers: ...
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3answers
996 views

How to find vulnerable sites on a web server

A client of mine has a managed VPS with dozens of websites on it, maybe even hundreds. Now his server keeps getting infected on a regular basis. The webhost / server admins keep digging in the dark. ...
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395 views

How to protect files (cron files) frome being executed by everyone?

I wonder what read / write permissions should I set on my cron files (php files) so they can be executed only by our server. We're using CentOS 5.9 - 64bit and cPanel / WHM + Apache. Thanks!
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378 views

Is there an easy way to secure Apache on debian?

I run an Apache webserver with lots of PHP-sites of several customers. I tried install apache-mod_security2 after this (german) tutorial that is using these rulesets: ...
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26 views

apache rewriterule htaccess security

If I configure an .htaccess like this : RewriteEngine On RewriteRule ^([^/]*)$ /view.php?key=$1 [L] Which transforms original URL http://www.test.com/view.php?key=123 rewritten URL ...
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1k views

is HttpOnly and Secure cookie enough to prevent CSRF in rest api?

I created one RESTful API using spring. I am transmitting a secret key as HttpOnly & Secure cookie with login response. After login every rest request will check with that cookie and update it ...