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

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5
votes
1answer
172 views

Cascaded Sudo for privilege elevation

I intend to use the least privileged user to do a given task. The issue is that it involve a kind of responsibility chain and translate as a sudo chain in my scripts, spreading the overall task in ...
4
votes
8answers
799 views

How can I be sure that an intranet app is absolutely not accessible from the internet?

I am developing an intranet application using Apache/MySQL. The server hosting it does not have a public IP address itself, but can access the internet through a router. There is not any sensitive ...
4
votes
3answers
4k views

How do you detect load balancing?

Scenario You need to PenTest XYZ.com. You expect, because it is a high traffic site, that multiple servers are being used with a load balancer. Question Aside from pulling the MACs (which are ...
4
votes
5answers
2k views

Is it trivial to bypass IP blocking?

There is a site with IP blocking. When a client makes too many invalid attempts when guessing e.g. password, then their IP address becomes blocked. I've heard about IP spoofing and similar attacks. ...
4
votes
3answers
351 views

Locking down web-based admin areas with personal SSL certificates

I've been tasked to setup a secure platform, where I've been asked to assign personal SSL certificates to administrators, and have the server only allow persons into the administration areas that have ...
4
votes
3answers
378 views

How can IT audit for installation of IIS Express?

IIS Express is a developer tool for Windows XP and higher which provides the full feature set of IIS, but without needing administrator rights. I've seen discussion by some developers who are ...
4
votes
5answers
1k views

Is it dangerous to allow user to view a file directory via web browser?

I have a URL which displays all of the pdf files at a given dir by visiting the following site location : http://www.mysite.com/allpdffiles/ Does this present any security vulnerabilities?
4
votes
2answers
1k views

How helpful is rkhunter?

I have a software firewall implemented on my server, and I have closed all unnecessary ports. I have strong passwords, and I validate user input on my website. With these things already in place, do ...
4
votes
1answer
869 views

Why does Directory traversal attack %C0%AF work?

Introduction: I am trying to learn the basics of Directory Traversal. Question: While trying to understand the 2-Byte Unicode conversion of characters, I came across this_SANS ARTICLE that explains ...
4
votes
2answers
6k views

Identify and disable weak cipher suites

i'm asking a question on a subject that is pure chinese to me..sorry in advance A security scan result prior to the deployment of a web application on windows server 2008 R2 has raised the below ...
4
votes
2answers
3k views

Test website for SSL 2.0

I'm in the process of disabling SSLv2 on our IIS-based webserver and am wondering how I can test that SSLv2 is actually disabled? The website is still in development so not visible outside our ...
4
votes
2answers
160 views

You've just acquired a newly created CentOS server, what should you do to secure it?

I've just acquired a new CentOS server, which will be hosting a Ruby on rails application, it is public facing. What should I do to secure this server?
4
votes
2answers
226 views

How widely deployed is TLS with cipher ECDHE?

Microsoft deployed a patch for Windows 2012 R2 and Windows 8.1 that adds the following ciphers. Cipher suite Exchange Encryption Hash TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DH ...
4
votes
3answers
428 views

Server root attack?

Someone in Hungary tried something odd recently: /?_SERVER[DOCUMENT_ROOT]=http://94.199.51.7/readme.txt? This is the partial URL from my log, showing the page they went to. They gave my site's URL ...
4
votes
2answers
198 views

Most secure response for a server to return to a user scanning for exploits

I have ASP.NET servers hosted in IIS, regularly i see bots attempting to scan my server searching for outdated versions of phpMyAdmin, mysql etc. Currently these requests all return 404 because ...
4
votes
2answers
877 views

Freebsd: Separating apache service and www-data(htdocs) with jails, is it worth it?

Is it worth separating www-data and apache service from each other, in jails? I currently have this setup: Freebsd 9 1x Public ip (jails are in private ip's, nat'ed) 2 separate domains, managed by ...
4
votes
2answers
998 views

Code Injection detection on Web Servers

Recently I found one of my web servers hacked with malicious code injected to websites hosted there. It wasn't exactly my fault, as I shared the server with other people and someone put some unsafe ...
4
votes
3answers
82 views

Will sabotaging a shared web hosting account threaten the security of sibling accounts being that they are shared on the same server?

Will sabotaging a shared web hosting account threaten the security of sibling accounts being that they are shared on the same server? Whether it it be through htaccess setups, posting login ...
4
votes
2answers
590 views

how unsafe is it for Windows webserver IIS to have domain privileges

Normally in the past, I've managed that the production server only serves http(s) to the internet, and is isolated from it's database by a firewall which only allows database queries to travel. ...
4
votes
2answers
229 views

Retention periods for web logs

I work for an ASP that provides banking solutions Card Services Payments ACH Online Banking And others Back Story: Our company provides an "all in one" solution or parts thereof, we are ...
4
votes
1answer
177 views

Increased HEAD traffic to my website

In the last few weeks I have been getting an increased HEAD traffic to my website of the form HEAD / HTTP/1.0" 200 0 "-" "-" This just returns the details of my web server, right? The IPs are from ...
4
votes
2answers
626 views

Compromised server redirecting only requests from Google

I found something very suspicious. When connecting to www.pulseexpress.com following a Google link, the server redirects you to some very dubious site that sends you a .exe file right away: # host ...
4
votes
4answers
104 views

What things should I check for when giving a client control of the filename parameter to C's open() function?

I'm doing a school project where we are building a simple web server in C. To implement this I read the first line of the request (all I need for my purposes) and parse the middle string as the file ...
4
votes
1answer
463 views

Intrusion attempt? Host 'somedomain.org' is not allowed to connect to this MySQL server

We have a web site hosted on a shared server. The hosting company's MySQL servers are hosted on a different server. We collect certain kinds of requests through a web form, and write them to a ...
4
votes
2answers
421 views

How to improve VPS security?

I’m using Linux based VPS hosting, and a firewall and mod_sec help to keep most hackers out. However, over the last couple of weeks I noticed several entries in mod_sec showing that an unknown domain ...
4
votes
1answer
3k views

How to convert IBM Domino SSL keys (private key) to the OpenSSL format?

I have a customer with an IBM Domino server. They offer a way to export SSL keys but in a weird proprietary format. Any idea on how to convert those to OpenSSL? Basically I need to upload this key to ...
4
votes
1answer
86 views

Dangerous to open a unix socket within www root?

My web server is chrooted into /var/www, and its contents are available over the network. One of my web applications needs access to a unix socket, and so that socket needs to be somewhere in ...
3
votes
2answers
434 views

Is it possible to steal a non secure Cookie when the Web Server (IIS) only allows Https?

Is it possible to steal a non secure Cookie (Secure Flag is false) when the Web Server (IIS) only allows Https?
3
votes
3answers
460 views

What is the actual security of this login page?

Please visit https://devforums.apple.com If I visit this site using my Safari 6 web browser, this page does not show the normal security indicator that secure sites normally show. Does this ...
3
votes
3answers
2k views

is it worth to implement a firewall on a web server you control?

I see the main reasons for a firewall on a web server to be defense in depth and extra cushion for a possible admin error of running an unnecessary daemon. I'm trying to see if I am overlooking ...
3
votes
2answers
399 views

Security concerns about my webapp

I read though OWASP very carefully, but I am not sure about some parts of my website. I am using jbcrypt on my website. It stores the salt in the hash itself something like this hash+salt. I read ...
3
votes
2answers
344 views

Would our company system be more secure using a VPN?

I'm currently building a back-office system for our company [for internal use] that will manage our customers, accounts etc (not interested in don't reinvent the wheel comments today, thank you!). I'm ...
3
votes
2answers
127 views

Does site need SSL to resend info to a site that does use SSL?

Let's say I have a website isellchicken.com, this site needs to be able to collect sensitive user information like credit card details. This site will not process the information, but will send it to ...
3
votes
2answers
2k views

What kind of security injection are these traces of, SQL, javascript, or otherwise?

I've tried to secure all information going to the server to make sure there are no SQL injections. However there are new folders on my server with weird names. One of our online services is such that ...
3
votes
1answer
132 views

How to ensure web application remains secured after intrusion of server

My application employs asymmetric encryption / decryption, the process of how this work is detailed below: Encryption - Server A Data is encrypted using the public key of server B Data is signed ...
3
votes
4answers
2k views

Determining the point of compromise on an infected web server?

Recently a friend of mine has had his web server compromised - all PHP files were injected with malicious code, in particular one that looks to be called "GetMama". If I look this up, it seems that ...
3
votes
3answers
221 views

What security standards should be implemented in a simple web application

I am creating a web application that basically reads/writes/updates information from and to a database on a server. I am knowledgeable in computer programming, but while seeking security standards, I ...
3
votes
3answers
273 views

Where's the security when a payment gateway let website handle Credit Card detail

Has anyone worked with eWay payment gateway before? Basically, there's a service endpoint where you post the customer's detail and credit card details from the web application after the browser sends ...
3
votes
3answers
2k views

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 and test how secure it is. Does anyone know if there was ...
3
votes
2answers
144 views

Need an overview of web service / web site security world, where do I start? [duplicate]

Possible Duplicate: Resources to learn about security I'd like to get a good understanding of modern issues in web security and get insight into what it takes to keep your sites and ...
3
votes
3answers
1k views

What risks are involved in exposing our home computers over the public internet?

I'm currently running a webserver from home accessible on the public internet via a static IP. Exactly what kind of risk is there in doing so? From what I understand, the setup will not allow ...
3
votes
1answer
142 views

Is using a WebServer as a proxy a secure solution

There are 2 machines - both running Windows Server. Machine1 can access the internet. Machine2 cannot access the internet, but can access Machine1. Machine2 needs to continuously access one external ...
3
votes
1answer
3k views

My web server is hit by strange traffic, what is that?

I'm a noob and just set-up a linode account to play around with linux development. I started nginx and made a simple homepage for my domain (giuliopizzini.com). Today I checked the nginx logs and ...
3
votes
1answer
339 views

What steps need to do to identify security hole

I use VPS hosting. Installed CentOS 6 and ZPanel according to this tutorial http://www.zvps.co.uk/zpanelcp/centos-6 Received warning from hosting provider: This URL has been identified as a phishing ...
3
votes
2answers
826 views

Restarting nginx with Jenkins or Phing - is it safe to allow Jenkins to run sudo without prompt for password

I am implementing the recommendations from Integrating PHP projects with Jenkins for my own PHP projects. I have created a jenkins user in my ubuntu 12.10 server. I used Phing as my build tool and I ...
3
votes
1answer
336 views

Mitigation Strategies for Response Spliting Attack

I am not going into basics of HTTP response splitting attack as above figure completing describes the working of such a attack. Previous Post have also discussed working of such a attack ASP.NET ...
3
votes
2answers
127 views

How could this file have been modified?

I was recently asked to help make a few modifications to an old ASP Classic website. At one point I was looking at the page source while debugging some JavaScript and noticed a div full of links to a ...
3
votes
2answers
1k views

How to remember a trusted machine using two factor authentication (like Google's system)

We are developing a web application that will use two factor authentication. We are likely to try and emulate something similar to that used by google, where to login you enter a username and ...
3
votes
3answers
204 views

Monitoring for security threats

I host and maintain several websites. The users pay to have their sites maintained and secured. However, with the amount of web applications like joolma, wordpress, ect... and their plugins, I need a ...
3
votes
2answers
1k views

How to counter or fix banner grabbing vulnerability

During an audit i came across banner grabbing findings,and would like to know how to mitigate that on IIS and apache server.