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

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2
votes
2answers
70 views

Why are web servers ubiquitously configured by blacklisting inaccessible files instead of whitelisting the accessible ones?

Take a random PHP site. It is essentially guaranteed that its web server is configured as follows: serve any file from the document root, except for certain files or paths that are blacklisted. ...
0
votes
2answers
118 views

Can Subject Alternative Name(SAN) Certificate install on different Web Server or OS?

Let say: application.house.com apache tomcat : physical server email.house.com apache tomcat : virtual finance.house.com Oracle Wallet Manager : physical server ...
1
vote
1answer
142 views

Do any tracking networks or ad networks not use JavaScript and only track based on IP address? If yes, how can they be prevented?

Are there any websites that collectively track one computer based on its IP address alone? Browser extensions such as Ad block plus, Do Not Track Plus and Ghostery modify the client side script but is ...
0
votes
1answer
247 views

High-Risk Intrusion Detected

I have an endpoint protection from Symantec. Recently, I have been receiving many Symantec Cloud Alert emails. wp-admin/admin-ajax.php?action=revslider_show_image&img=../wp-config.php They ...
0
votes
0answers
90 views

OSSEC, what is it telling me about port changes?

I've been diving into OSSEC for the last couple of months, but I feel unclear on one of it's alerts. I've provided the alert below. The main difference I see in previous output and current output is ...
2
votes
2answers
97 views

How risky is having sensitive files on webroot?

I understand that having anything sensitive under webroot is not smart; someone may be able to access it via url. However, I do not have a choice with my web host (iPage) as they limit my server space ...
0
votes
1answer
57 views

HTTPS enable for proxy server or web server

Say I have 2 separated servers which are one web server (apache) and one proxy server (nginx), I want to use HTTPS for the website running on the Apache. Do I enable SSL on apache or nginx or both? ...
0
votes
2answers
87 views

Attack surface for a site that hosts only static content HTML and images?

What kind of attack surface is there for a site that only hosts static content: HTML, images, CSS? How can sites like this be successfully penetrated?
0
votes
1answer
60 views

Server Security Through Constant Check-ins [closed]

I've built a system and have put a ton of work into making sure is super secure. But I have a (potentially irrational) fear that if someone were able to break into my server, they could just change ...
0
votes
0answers
41 views

securing my API: concept of accesstokens

first of all I want to excuse for the bad spelling and grammar. English is not my mothertongue. I have built a JSON communication between frontend(website) and my NodeJS webserver. I want to keep in ...
7
votes
2answers
1k views

IIS IP Address Restriction - can I rely on it online?

I've been told that I might have more luck posting here than on Stack Exchange, so here goes: I'm looking for a way to lock down a 3rd party application in IIS. It's a web service, so there's no ...
1
vote
2answers
3k views

Questionable request to /user/soapCaller.bs

My webserver logs revealed a request to /user/soapCaller.bs from 220.226.188.32, which maps to Mumbai, India. The HTTP user agent is called 'Morpheus * Scanner'. My server returned a 404 error. ...
6
votes
2answers
3k views

Is server hardening with GRSecurity really necessary on the CentOS 6.3 environment?

I consider myself to be reasonably good with IT, however I am relatively fresh at server and system administration. I am a web developer for my company and I have been charged with setting up and ...
11
votes
5answers
8k views

How safe is it to install XAMPP on my home computer to test PHP code?

I want to test some PHP code and I figure the best way is to install XAMPP - but I'm nervous about installing server software on my home computer. Is it generally safe to install XAMPP (given that I ...
1
vote
2answers
1k 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 - ...
7
votes
4answers
218 views

DNS spoofing of linux distribution repositories

Question(s) Is it possible to "redirect" linux-update-repos via DNS spoofing (e.g. DNS cache poisoning) to a malicious website, so that harmful software (updates) will be installed, when running the ...
1
vote
1answer
111 views

Why is the HTTP Server header not used by most servers, but the User agent used by most browsers? [closed]

I've read that the Server header would disclose information, and that its use would be bad. The arguments made in that question also apply for the User agent header. So why is it still used, and not a ...
0
votes
0answers
120 views

How to stop auto-created files to happen?

I'm new to "Information Security" so I hope I'm in the right place. I'm experimenting a very disapointing problem on my hosting server: some files are automaticaly created and I don't know how. The ...
0
votes
1answer
30 views

Does serving Tomcat via Apache Webserver improve security?

This question is an ongoing discussion at work. Assume a Tomcat serving some web application and has all JMX and remote management stuff disabled. If you consider three scenarios: Tomcat serves ...
3
votes
1answer
76 views

How long do HTML password fields (sent to the server as postdata) remain in memory?

In any major server-side web framework, there is usually a mechanism to read HTML form input, e.g. in ASP, for an HTML element, <input type="text" name="the_field" />, it is ...
-2
votes
1answer
72 views

protect files on webserver, allow only internal use

I have a website and it has an audio player to play music files, the music files are hosted in a public directory. Since they are they anyome can point there and use the files on their website. Is ...
2
votes
3answers
472 views

Is there any way to block LD_PRELOAD and LD_LIBRARY_PATH on Linux?

Preferably with a vanilla Linux kernel i.e. not using SELinux or GrSecurity? Lately there has been a case of in-the-wild UNIX server malware: ...
2
votes
1answer
592 views

How to run a tor hidden service from home securely?

Another theoretical question about Tor: Imagine I am running a dissident web site as a hidden service. How can I reduce the chances that I get caught? Assume I am running the server from home, over a ...
20
votes
2answers
2k views

Should I disable http HEAD requests?

I have seen increased 'HEAD' requests in my webserver access.log. What are these requests for? Should I disable this method in my webserver configs?
1
vote
4answers
151 views

untangle server at work place privacy

When I am browsing in an environment where Untangle server is installed, can the network admin track everything I do? for example: Skype chat messages Personal emails (Gmail, Yahoo)
0
votes
1answer
65 views

benefits of xinetd for a web server

What are the pros and cons of using xinetd for a web server running on a VPS. Assume the following measures have already been taken to secure the system: system hardening, latest updates, minimal ...
0
votes
0answers
120 views

Is opportunistic encryption support optional for HTTP/2?

I'm a little unclear on the subject of opportunistic encryption of the HTTP:// address scheme in HTTP/2. According to the bug report, it looks like it's kinda optional, and an afterthought: ...
5
votes
3answers
621 views

Can allowing a web application to move, copy and/or delete files outside of the server root be a security issue?

I am new at using and programming web applications, so I wanted to ask a question. Is it safe to execute os commands like copy and mv and delete from a web app that is running on an apache, or does it ...
4
votes
2answers
174 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?
0
votes
2answers
62 views

What type of probing sends GET /“ data ” to a server?

During monitoring of webserver logs I've stumbled upon those standard probings for wordpress exploits etc, like No route found for "GET /wp-login.php" (uncaught exception) No route found for "GET ...
2
votes
1answer
124 views

What security does nginx provide between server blocks?

What security does nginx provide between server blocks? Here is an example scenario. Say I have two server blocks configured with nginx. Each serves up a web application to authenticated users. I ...
-3
votes
1answer
52 views

Security concerning using Windows 7 as a web server [closed]

Can Windows 7 be used for hosting a low traffic website which only use php and mysql and nothing else, like email, file hosting, etc.
0
votes
3answers
59 views

How secure is my method?

I want to select data from a MySql database on an iphone device. The method I seem is the easiest one is to connect to a php file with GET arguments and then return it as a string. Now I'm just ...
2
votes
1answer
160 views

What features boost security for a home edge router?

I want to hide my home network behind a router and not worry about firewalls on internet-facing devices. Furthermore, one PC is going to be hosting some services, so I guess I need port forwarding as ...
18
votes
4answers
2k views

Is this verbose error message on the DOT website a security issue?

I was looking for a form on the US Department of Transportations website, and I came to a page that gave me an error, with a full debug report and stack trace. Hopefully, you can get the same result ...
1
vote
3answers
630 views

What is the most secure way to set up web server user permissions? [closed]

The default Debian way of setting up a common web server (Nginx) is to run the main process as root and unprivileged workers as www-data. In order to allow for the worker processes to read/execute web ...
5
votes
1answer
174 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 ...
37
votes
3answers
23k views

“Optimal” Web Server SSL Cipher Suite Configuration

Over the last couple of years there have been a number of changes in what would be considered an optimal SSL cipher suite configuration (e.g. the BEAST and CRIME attacks, the weaknesses in RC4) My ...
0
votes
1answer
145 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 ...
1
vote
1answer
54 views

Should statically-linked server binaries (daemons) be deemed more secure? [closed]

For a long time I've pondered this question. I am aware of the benefits and downsides of dynamic libraries (shared objects), including the infamous article by Drepper. All other things being equal, ...
28
votes
4answers
27k views

Why is passing the session id as url parameter insecure?

I recently followed a discussion, where one person was stating that passing the session id as url parameter is insecure and that cookies should be used instead. The other person said the opposite and ...
0
votes
1answer
31 views

Safely converting untrusted files with Microsoft Word in a web service

I'm made a small web service that gets urls, download them, and convert them for another format. Most of those urls are documents (doc, docs,...). Basically, I'm open them with MS-Word and convert ...
2
votes
1answer
347 views

How can the Google web crawler bypass portals?

This is a situation that I have encountered on a number of occasions. I will conduct a web search in Google, a link to a file (.pdf for example) will take you to that file on the server. It opens up ...
0
votes
0answers
93 views

Managing keyczar keysets across multiple servers (google compute engine)

I'm a developer building a web service that will be required to store a few credentials for 3rd party services that would themselves provide access to customer data that I would consider sensitive. ...
1
vote
1answer
181 views

Should I keep all UUIDv4 generated oAuth2 Bearer Tokens in my database to prevent an attack?

I generate oauth2 access and refresh tokens and store them in my database. I generate these tokens using UUID v4 and remove the dashes. I used to delete the tokens after they expire but now I store ...
-2
votes
1answer
197 views

Backdoors and hard-coded usernames and passwords

I have been researching on computer worms that brought me to this topic of backdoors. According to my research, backdoors are malicious pieces of code that are inserted into either computers to get ...
1
vote
1answer
1k views

Skype chat history and web browsing history CHECK

In an office work place, can a network admin have access to my Skype chat history and web browsing history without logging in to my pc since all pc's are connected with the same network? i am ...
34
votes
6answers
4k views

PHP files browsable: is this a vulnerability?

I have a friend who has a website developed in PHP on which we can browse all his files one after one (of course, we can not read the content of the PHP files). Do you think this is a security hole ? ...
15
votes
3answers
22k views

Strange requests to web server

I have a Linode VPS running Nginx, which currently serves only static content. Once I was looking at the log and noticed some strange requests: XXX.193.171.202 - - [07/Aug/2013:14:04:36 +0400] "GET ...
1
vote
1answer
182 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. ...