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

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116 views

Strange Log in Apache

I found in my Apache log something strange in requested URL / method request (I suspect an attempt to hack): \x1b\x95J\xe2h\xa7\xcfj\xe1`\x85R\x1f\x98\x9e\xcf\xdedFM(\xa8\xbcc\xc0P\xd9::e\xed\xaa~...
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1answer
116 views

Strange entry in Apache's ports.conf

I am not sure if this may indicate a compromised server or if I'm just being paranoid. While fiddling around with Apache and Webmin on a new Ubuntu 14.04 virtual server (as well as DNS records for ...
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73 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
610 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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136 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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454 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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309 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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419 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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670 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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444 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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67 views

Executing arbitrary code with cat command when reading access.log

I made this file based on a combination of hexadecimal that can breakcat and the terminal showing the file with cat, and the reset command does not work anymore: Download Cat Killer Version 1 To ...
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76 views

HTTPS: Same certificate, different public key

I have a web server, Debian, and the site uses a HTTPS cert from Thawte. The root certificate meant to be on top of my verification chain is also on the server, in /etc/ssl/certs, because the APT ...
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114 views

How to keep my VPS server up on Hulk.py attack

This question in not duplicated, I tried everything that was published on stackexchange websites, but could not fix my problem. I have a web server. OS: Ubuntu 15.10 Configured on Apache2 Ram: 1.5 GB ...
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88 views

What type of authentication should I use, basic or digest? [duplicate]

I know that it is strongly recommended to use both basic and digest authentification with https. Many say that if you use SSL, there are no advandages in using digest auth, and basic auth is safe ...
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53 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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126 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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98 views

Can't get my SSL CA to work with Apache

So I have an SSL enabled website running on Apache2. https://eamorr.com (I get a warning in my browser, as expected) I have a config file for this website at: /etc/apache2/sites-available/eamorr....
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123 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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131 views

Apply SSL for domain that I do not own

As part of a project that my company is doing, we need to setup a development server. Let's say our company's main domain is example.com We need to be able to access the dev server through dev....
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477 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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255 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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50 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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2k 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, \ setvar:'tx.allowed_methods=...
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98 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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50 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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164 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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2k 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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208 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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78 views

Bizarre HTTP requests to VPS, former malware command and control server?

I just bought a new VPS with Linode. I installed Apache and noticed some very strange behavior that I have been seeing consistently throughout the logs. So basically, I keep receiving stranger HTTP ...
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2answers
2k 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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449 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
3k 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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506 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 /?search==%00{.exec|cmd.exe+%2Fc+echo%3E22222.vbs+dim+wait%2Cquit%2Cout%3ASet+xml%...
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60 views

SSL warnings while using Origin Certificate on my VPS

I created Origin Certificate in cloudflare and installed on my Apache on Debian VPS using the guide https://support.cloudflare.com/hc/en-us/articles/217472077. My URL is like this: https://socket....
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3answers
5k 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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158 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
376 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
397 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
226 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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478 views

Strange access in apache's access.log

Does anyone know what that means? I found those today on apache's access logs. Thanks! XX.82.64.68 - - [18/Jan/2016:14:30:45 -0800] "GET /wp-content/themes/Akhbar24/images/alemarah.jpg HTTP/1.0" 404 ...
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104 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
3k 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
2k views

Apache 2.2 mod_ssl configuration Forward Secrecy/BREACH/BEAST/CRIME

I am looking for mod_ssl configuration which protects against common attacks like Breach, Beast and Crime. I already disabled gzip to avoid Crime but I'm unsure about the others. RC4 should only be ...
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566 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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261 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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3answers
1k 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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2answers
525 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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2answers
391 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: http://www.modsecurity.org/...
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85 views

What is the most valuable file you can get using a directory traversal hole [closed]

I am doing a penetration test and I found a directory traversal hole in the web application which enables me to download any readable file in the server. However, I could only download files that is ...