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

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0
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2answers
64 views

Need help to exploit php script vulnerability of a challenge

i am trying to exploit a vulnerability in a php script of the 'stop us' challenge of Wechall.net and I am not sure but I think I found the vulnerability, but now I don't know how to exploit it. I made ...
0
votes
0answers
44 views

Targeting a specific machine and known setup with Armitage / Metasploit?

Most introductions to armitage / metasploit start with searching for potential targets. But if you want to pen test your own setup then it probably makes more sense to target the specific machine and ...
0
votes
2answers
88 views

How to detect XSS in GET requests?

How to detect XSS in HTTP/1.1 GET requests? A request can be malicious and I want to know how to detect if the GET request to a server is trying to XSS my website?
1
vote
2answers
76 views

Tracing origin of malicious PHP script

I'm looking at a Linux server running Apache + mod_php. A malicious PHP script was uploaded during the night. It's owned by the Apache user and I would think it almost certain that the script was ...
8
votes
2answers
119 views

Are there any sequences other than ../ which will be intepreted as directory traversal in *nix or Windows?

A common vulnerability is for web applications to accept a filesystem path as a request parameter, and then perform some action on the specified path. For example, retrieving a file and returning it ...
0
votes
1answer
80 views

Passwords processed on server side? [duplicate]

So while I was working on my personal project something struk me. When somebody creates an account on any web service/social media they provide their desired username and password,this is then ...
1
vote
1answer
44 views

Securely opening an insecure webserver to a single phone

I have a webserver running inside my private network and not exposed to the internet. I'd like to securely talk to this webserver from my mobile phone over the internet. However, this webserver has ...
1
vote
1answer
43 views

Does a reverse proxy pass keep the backend server anonymous?

If I have an NGINX server at 1.1.1.1 and in the NGINX server you have the config that forwards on http traffic to 2.2.2.2: upstream 123 { server 2.2.2.2; } server { listen 80 default_server; ...
3
votes
1answer
68 views

Is this information leakage dangerous?

After scanning my website with a automated tool I get this Is this dangerous, is it a vulnerability or not? If yes what can an attacker do, how to fix it?
1
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0answers
20 views

Information and Settings Collected from a PC Connected to a Web Server

1- What are the information and settings collected from my pc when I connect to a website server? 2- When I connect through a VPN, Could the website server detect a mismatch between my new location ...
3
votes
0answers
57 views

Is an application backend expected to potentially log sensitive customer data when in debug mode?

As I am working on a website that asks customers to enter data such as their name, address, phone number, obviously customer data that needs to be protected. I do my best to not log such data ...
2
votes
0answers
38 views

How to Lead to XSS by Response Splitting in this Scenario

I have been pentesting for a company. I found a CRLF Injection that could be done using %E5%98%8D%E5%98%8A instead of %0d%0a. So I'm using %E5%98%8D%E5%98%8A in redirection parameter for CR/LF. Here ...
0
votes
1answer
45 views

Simulate a lot of different IP's hitting a website

This may sound like launching a DDOS, but I am testing out GEO-IP location on my applications. I need to gather some data, to check how my graphs look when there is a lot of data. Are there any tools ...
8
votes
1answer
191 views

Any way to browse OSVDB?

I've been playing with nikto and I see some vulnerabilities listed in the scan for my dev server. For example, I see osvdb-XXXX, with a short description after it. I am googling this string, ...
0
votes
2answers
50 views

Is there a server/website specific malware scanner? [closed]

I have multiple Linux CentOS servers that are scanned with the Google Webmaster Tools, and when it finds some malicious code on my servers(shared/dedicated), the ranking of those site drops. What I am ...
4
votes
1answer
79 views

Sites that allow user-generated content

Is there a way to identify which popular sites will host arbitrary user-generated content? I am doing some analysis to detect phishing sites. It would be nice to use the popularity of a website as a ...
2
votes
1answer
80 views

How can I test a domain that I don't own for unencrypted communication vulnerabilities?

I am suspecting a website of passing clear text login information and so far as I can tell the connection is unencrypted. Are there web-based tools to validate/test a website for basic security ...
5
votes
2answers
109 views

Server-side man-in-the-middle/eavesdropping: attacks between two servers using unencrypted HTTP

I’m new to security, and I’m wondering how man-in-the-middle and eavesdropping attacks between web servers work, rather than between personal devices and servers. Most questions I see here about ...
3
votes
2answers
126 views

My Apache server is regularly challenged with vulnerability attacks: Do I need to worry?

When I look into my access logs: I find a lot of suspicious activity that looks like attempts to gain administrative access to my system using vulnerabilities from known web software products such as ...
3
votes
1answer
46 views

Does using the same mail and web server increase a risk of DDos due to IP exposure?

I use the same server for sending my emails and web hosting. I send user registration and support forum mails from my server and occasional marketing mails or newsletters. I read on a CloudFlare blog ...
3
votes
1answer
175 views

How did hackers compromise my EC2 instance?

My EC2 instance was hacked recently. It doesn't really matter as I'm just starting my website and there was no sensitive information on my server yet, but I do plan for there to be in the future. I am ...
45
votes
8answers
5k views

Hack-resistant hosting solution for non-profit?

(While the answers and comments at How do I deal with a compromised server? are useful, my question is more about prevention of hacking when I do not have total (or much) control over the server. I ...
3
votes
2answers
49 views

How to host application monitoring and administration dashboards?

I'm in the middle of completing a web app for production. This is my first one. I'm at the point where I have to put together an administrator dashboard for comprehensive monitoring and administration ...
0
votes
0answers
30 views

How to know who and when files and folders have been deleted in CentOS? [duplicate]

I have a dedicated web server and there is some files and folders have been deleted from my client's sub-domain accidentally and there are more than one user mange the client site. How to know who ...
5
votes
1answer
67 views

Regenerating dhparam periodically

Does it increase connection security if I regenerate the dhparam files used with NGINX on our servers periodically e.g. every week? What issues may arise from this? Is there any benefit in doing ...
1
vote
3answers
114 views

Are there any problems with using CAMELLIA, IDEA and SEED based cipher suites on a web server in 2016?

I have recently seen CAMELLIA, SEED and IDEA cipher suites in use for HTTPS on a web server and am unsure what to suggest to the owner. The keys in use are all over 128 bits in length and standard ...
4
votes
4answers
165 views

Why there are so many web servers which get exploited by generating obfuscated files?

TL & DR How do those obfuscated files many users complain on this SE-site about get on their systems? And after that, even more interesting how they get executed? Is this caused by the way php ...
0
votes
0answers
43 views

Can I use process crash information to detect buffer overflow attacks?

Buffer overflow is a very common vulnerability, often targeted with zero-day exploits. Successful attacks often result in arbitrary code execution, while failed attempts tend to crash the target ...
3
votes
1answer
168 views

Why is Norton Safe Web flagging my site as dangerous when it reports on PHP files/urls that don't exist?

I'm in a bit of a quandary over Norton Safe Web's rating of my company's website. My question is: is it possible for someone to fool Norton Safe Web into thinking that our website has PHP files which ...
0
votes
1answer
50 views

Connecting to a compromised server

There have been a number of threads lately about hacked websites where attackers are gaining control of the servers these sites are being hosted on. As such, these servers should be treated as ...
1
vote
2answers
64 views

Security risk of a service that allows a user to test from connectivity from a server to a printer

What are the security risks in adding a feature to an application which allows users to test for connectivity from a server to a printer? I'm planning to add a feature to my application to allow ...
8
votes
1answer
421 views

Is exposing website performance data a security risk?

I am currently adding a subsite to some websites that allows me to monitor performance data live as the server software perceives it. The data is mostly stuff like amount of memory used, memory ...
4
votes
1answer
123 views

JS snippets on my live project do not appear in my code residing on my production server

I have a Django website project that is live (let's call it example.com). It's a forum where users can submit comments and reply to them. It has a Postgresql database, and gunicorn + nginx reverse ...
28
votes
5answers
7k views

What are the dangers of advertising my MySQL-powered amateur site?

I recently started server-side programming, and wrote up a page containing a drawable-canvas that lets users publically draw and save a picture, and overwrite pictures made by others. For kicks, I ...
82
votes
6answers
11k views

Script Kiddies - how do they find my server IP?

I've set up a site on Digital Ocean without a domain yet, so there is only the IP. Despite telling no-one of its existence or advertising it, I get hundreds of notices from fail2ban that various IP's ...
3
votes
3answers
325 views

Is web application connected to a database via an application server is more secure?

I have heard from my colleagues and some other people on web suggest that it is more secure to run this configuration: Web server -> Application server -> Database, than this: Web server -> ...
1
vote
0answers
39 views

What can go wrong when allowing file uploads on a web server? [closed]

Some basics that are self-evident: Infected/harmful file can be uploaded for other users to download A bug in the web-site's code allowing code execution, thus allowing execution of the uploaded ...
4
votes
1answer
219 views

What are the main advantages of using LibreSSL in favor of OpenSSL

What are the main advantages of using LibreSSL vs OpenSSL? As I understood LibreSSL is a fork of OpenSSL: LibreSSL is a version of the TLS/crypto stack forked from OpenSSL in 2014, with goals of ...
21
votes
5answers
2k views

Should I use a second/dedicated IP address for SSH?

When running a public web server (e.g., with Apache), I've heard it's recommended to bind SSH to a second IP address, different from the one Apache is listening to. But for me it seems like this is ...
1
vote
1answer
104 views

How secure and how to find if a website use Flexible SSL from Cloudflare?

How secure is that technology? Can someone tamper with your traffic between a server and Cloudflare in the first place? And if the answer is yes, how can you check if a website is using the ...
3
votes
1answer
25 views

Automatic client executable updating

Scenario I am currently developing an application which should automatically update (if applicable) every time it is executed. The update would involve replacing the main.exe and any assets in an ...
2
votes
2answers
81 views

Database Protection : External & Internal

My company is using a weird database setup and I can't really figure what it is adding in term of security. Our Setup Outside World [Firewall] DMZ – Web Server [Firewall] External Database ...
-1
votes
2answers
99 views

need to hide server details using apache server whenever there is 404 or 403 error [closed]

I need need to hide server details using apache server whenever there is 404 or 403 error. I tried with the below two changes in httpd.conf file. ServerSignature Off ServerTokens Prod ...
3
votes
1answer
656 views

Is my server vulnerable to a perl exploit?

I have a few worrying entries in my web server logs and I'm wondering if this means that my server is vulnerable. Firstly, the following seems to fail, receiving a 404 response: ...
0
votes
1answer
45 views

Block web content authoring from internet

In implementations where one uses content management, which is the better method to secure the web content authoring pages from access from internet? Configuring httpd.conf to restrict the content ...
0
votes
1answer
61 views

Is it a breach to have a ssh program into a tomcat server

I start to working in a project here and find something that at least seems odd to me. Since I'm not an specialist I came here to ask. It is a Java Web project that was made to run into a Tomcat ...
5
votes
3answers
171 views

Securely storing an encryption key on AWS

Regardless of the format of encryption, what is the best way to store an encryption key on an AWS EC2 server? I am storing encrypted information in a MySQL database and my cryptography key is stored ...
2
votes
2answers
142 views

Apart from uploaded files, how else can 777 permissions on website files/folders be exploited?

I have seen several instances of php websites being compromised due to permissions being set as 777 on the website folders. In these instances the cause was a foreign file uploaded by the attacker. ...
1
vote
1answer
112 views

How to trace someone's(hackers) IP who made a lot of request on my website? [duplicate]

Somebody made a lot of(unusual, like never before) http requests on my website, I checked this thing on google analytics and it shows that someone with no lang, no country has visited my website. My ...
-1
votes
1answer
76 views

Starting a server without SElinux or Apparmor [duplicate]

The Debian kernel that compiled for Beaglebone Black, doesn't support SElinux and Apparmor, AFAIK. I just want to know, is it safe to put a server on the internet without SElinux or Apparmor? However ...