A system whose primary function is to deliver web pages on request to clients.

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General User Authorization Security

I am creating a website that needs user authorization. It is my first time creating a website to go live, and also my first time trying to do any form of authorization. The following is my plan, will ...
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1answer
125 views

Allow read-only access to server-side pages for security review?

This answer: http://security.stackexchange.com/a/37319/10574 Mentions the issue of host-based security. To the end user, the web server is an untrustable black box. Would it provide to needed ...
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2answers
113 views

To-dos when taking over an existing webserver [closed]

I'm taking over as a system administrator on an existing LAMP server for a site with a number of individual applications. The person I'm replacing has done a pretty good job with security as far as I ...
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3answers
151 views

If my server was compromised, is my database safe?

I have an AWS instance running a rails app that I don't actively maintain. Since I didn't keep track of what was going on with this app, I didn't update it promptly when all the rails vulnerabilities ...
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1answer
1k views

Ban MAC address from website? [duplicate]

Possible Duplicate: Can I block based on Mac Address? I have a situation where I need to ban a MAC address from accessing my webserver. (Windows Web Server 2008 R2). Is this possible? P.S. ...
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2answers
109 views

Was I a victim of an “Apache PHP Remote Exploit” attack?

I have a server in my computer for testing purposes, accessible from the outside. I was reviewing the access.log file, and I saw 89.187.33.50 - - [29/Mar/2014:03:39:01 +0100] "HEAD / HTTP/1.0" 200 - ...
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1answer
153 views

Can closing port 80 lead to more security?

If a website is running on HTTPS only, is it reasonable to close port 80 of the web server and only leave port 443 open? Does this action provide more security for the website?
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1answer
57 views

Different certificate information for the same website?

Apologies for the funny title, I'll try to give a better explanation here :) I have just noticed something weird with regards to a website certificate: if I go to https://www.anobii.com/login using ...
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1answer
67 views

Possible ways of exploiting PHP register_globals [closed]

I have a PHP script that executes a bunch of commands to verify that a user is logged. if (( isset ($password) && $password!="" && auth($password,$hidden_password)==1) || ...
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1answer
54 views

What security exposure (if any) can result from lots of apparently odd referrers in server log

I see relatively many referrers such as the following (as reported by Webalizer) in a web server log. The server is located outside Russia and it's a small one. 8 3 http://tiandeural.ru/ 19 ...
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1answer
93 views

How to investigate this anomaly?

According to the IT managers, this problem is neither at the server nor at the client but is suspected to be somewhere inbetween e.g. some DNS server that has been infected. Do you recognize this ...
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1answer
79 views

How to track MAC policy violations back to HTTP request?

Suppose there is a web application under public load that runs under a very restrictive MAC (e.g., SELinux, TOMOYO, Grsecurity) policy. Suppose we detect and log a MAC policy violation like a file ...
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1answer
76 views

Is there any reason to allow Python fetches of my Web server's pages?

I keep seeing "python-requests/1.1.0 CPython/2.7.4 Linux/3.8.0-19-generic" requests e.g. from Amazon's servers of my website. It's kind of creepy. Who would set up an Amazon server to scan websites? ...
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1answer
109 views

Protecting Website Static Resources

If I have a website that is only accessible by authenticating at a login page, is it possible for a non-authenticated person to get access to static assets (images, css, javascript, ...)? I imagine ...
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3answers
175 views

Odd Server Logs

I have a webapp running using Django. I recently activated some middleware which is supposed to alert me of 404's where the referrer is within my domain (supposedly indicating a 404 that is my fault). ...
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2answers
302 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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2answers
252 views

How to restrict web access to certain countries

What are the better ways of filtering access to the web application based on Geographical location. Is it possible with a network layer firewall or we need an application layer?
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2answers
232 views

What are the go-to books on server security? [closed]

To learn how to keep things secured, and to do a good job at it, what books should one check out?
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1answer
347 views

Iframe hack / done through FTP?

On two websites which I host for a friend, I found that there is an iframe at the bottom of each site's index.htm file. <iframe src="http://www.kunstsalen.dk" width=1 height=1 style="visibility: ...
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1answer
16 views

Allow loopback in Iptables?

I'm trying to write Iptables rules for a small web server. Almost every source I've encountered recommends to allow loopback access to the web server, but doesn't explain why this is necessary. ...
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2answers
127 views

Does the Heartbleed vulnerability affect signed java applets [closed]

I have a Windows based server that serves a signed JAVA applet. The website isn't secured (HTTP), but all JAVA applets have to be signed now, so the site serves a signed JAVA applet as part of a web ...
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1answer
110 views

oracle weblogic vulnerability

I searched for Oracle Web logic vulnerabilities and found this vulnerability: Oracle WebLogic Server Cross-Site Scripting and Manipulation of Data Vulnerabilities ...
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1answer
40 views

Security implications of putting virtual hosts source code in /var/www/[domain]

A friend pointed out that putting virtual hosts as sub folders of the default /var/www was a bad idea. (linux example path; this applies to all OS) I see that it's possible to reach the virtual hosts ...
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1answer
38 views

How do I solve a lot of Failure Audit (529 680) which are appearing in event viewer “Security” tab?

was trying to consume an Web Services that I have published on the Web but I couldn't thing is that when I got into the server and check the "Event Viewer" I have a LOT of "Failure Audit" and they ...
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1answer
694 views

What methods are there of protecting a VPS from DDOS attacks? [duplicate]

I was just wondering what would be the best way to stop a VPS from being attacked, bandwidth would be a problem in this case so methods that reduce the amount of incoming attacks and stop sending ...
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1answer
172 views

Can query string command line exploits in older CGI implementations of PHP be protected against without updating PHP versions?

We recently received this from a security audit: PHP is a general purpose scripting language that can be embedded into HTML. A vulnerability exists in PHP versions prior to 5.3.12 and 5.4.2 due to ...
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1answer
61 views

How reliable is virtual hosting?

Web servers such as Apache and nginx support virtual hosting. To the users of websites on a shared server, they will not know that another websites exists on the same server. I have been wondering for ...
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2answers
88 views

SVG-Snippets in Access-Log: Probe or Error?

I get some hits every then and there from different IPs, always the same scheme: GET /blah/Resources/Public/Css/data:image/svg+xml;base64,... HTTP/1.1" 404 795 "http://some.referer/" "Mozilla/4.0 ...
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3answers
831 views

Security checklist for hosting a website on dedicated server - Linux [closed]

I have been searching for a while now. But i can't find a start-up and advanced sought-of checklist to understand the most important things to consider while going for dedicated hosting server for a ...
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2answers
187 views

How do I securely identify a remote (self programmed embedded) device in PHP?

Is there a reliable way in PHP to identify a device that might be behind a Router (so the IP is not unique)? Background: I have several embedded devices (self programmed & adaptable) that contact ...
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1answer
193 views

Response to script-kiddies “scanning” website for vulnerabilities? [duplicate]

I have a website and I have email reports when 500 errors occur. Many of these errors occur because "hackers" are running scripts to look for common vulnerabilities or access to admin interfaces - ...
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1answer
465 views

Phishing attack stuck with jsp loginAction.do page? [closed]

I'm testing a phishing website on a staged replica of an jsp web-application. I'm doing the usual attack which involves changing the post and action field of source code to divert to my own written ...
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1answer
230 views

Is it dangerous to serve executable cgi files in public folder?

In the past, Apache used to serve cgi files from cgi-bin folder only, and it was always advised to avoid putting executable files in public folders. However, today's webservers fairly serve executable ...
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1answer
402 views

Data Retention Laws for ISPs in North America

I was reading an article on TorrentFreak where Private Internet Access claims the United States "is one of the only countries without a mandatory data retention law." According to the linked article ...
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1answer
428 views

Securing firewalls for XAMPP on Mac OS X

I've recently installed XAMPP on my Mac OS X 10.6.8, and this has caused me to reevaluate how I have my firewall setup. Right now I am using the two firewalls that came pre-installed on my computer: ...
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2answers
88 views

Directory traversal & default filesystem permissions (755) for web server

I'm trying to get a better understanding of the potential security holes my default filesystem permissions might be creating. It appears I am capable of traversing my filesystem, serving simple php ...
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0answers
23 views

Why is it not advisable to have the database and web server on the same machine? [duplicate]

I'm bringing this across from a question on stackoverflow, but I'd like to focus specifically on the security aspects of it (and not the performance, etc..). My hypothesis is that the cost of ...
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votes
1answer
91 views

SSL Auth to proxy using Certificate on Client-side

The question may need to be reworded. The server-side is set up with Squid3 acting as an Authenticating proxy by way of LDAP. I did this for testing purposes to make sure everything was working. I ...
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1answer
387 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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0answers
101 views

Google App Engine Security [duplicate]

Possible Duplicate: Google App Engine Security I am writing a master thesis concerning security of certain applications, and as a part of it I want to write a web app on Google App Engine ...
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votes
2answers
3k views

How could the hacker tamper with the 'configuration.php' file in my Joomla web server?

I have a web server hosting Joomla 1.5. I discovered that the Joomla configuration file configuration.php was modified by a hacker. How could he do so? Note that the file has 777 permission. Also, ...
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votes
1answer
98 views

Free Alternatives in Web-Application Mapping Software [closed]

Im new to hacking, i have reached a chapter in my book "the web applications hackers handbook" where im about to start bypassing client-side and actually attacking different technologies well before ...
-1
votes
1answer
130 views

setting up website for logged in users, anyone, and files no one should see (via the web) [closed]

I asked how to prevent not logged in users from seeing certain content but the solution I chose to implement encountered a problem. I chose to make my root directory for the server C:\WAMP\www\public ...
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votes
1answer
88 views

How bad is to buy domain name with .ext from another country even if they allow non citizens to own one?

I'd like to purchase a domain name from a country that does not require citizenship, since they can make nice urls, they are more available and sometimes not too expensive too! But few things annoys ...
-1
votes
1answer
95 views

Would PGP/GPG have been a better choice than SSL for browsers and http servers to encrypt traffic? [closed]

I was curious recently when I heard that SSL had supposedly been broken by a certain rogue government agency, why SSL was chosen in the first place. Could it be that PGP would have been a more secure ...
-1
votes
1answer
201 views

Impact of attack occured in Radius, DHCP and HTTP servers on VOIP?

Assume we can crash the RADIUS server in a VOIP system. What would be the impact on the confidentiality, integrity, and availability of VOIP service. What would be the impact if the same question if ...
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0answers
17 views

User experience monitoring [closed]

Has anyone come across User experience monitoring software like Logfiller before? It appears to be a totally new category of security / log management, and wondered if there was actual value in it. ...
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votes
1answer
111 views

Location of server affects the speed of page loading? [closed]

i live in a country but i make a website for another country's users. The web hosting company has server in both of the countries. So where should i buy? Does it affects where the server is depending ...
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votes
3answers
84 views

Do Mobile Device Management solutions provide a mechanism for an internal website to know what kind of device is connecting? [closed]

Is there any mechanism in mobile device management solutions that would allow a web server (for an internal, authenticated system, e.g. SharePoint) to know that a request is coming from a mobile ...
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votes
2answers
177 views

Automatic robot crawler to check web pages authenticity?

Our servers seem to be commonly hacked, mostly injecting malicious codes/frames to our web pages or changing downloadable files with backdoors and so on. Is there any tool that can crawl our website ...