Access control based on user, group, or global access.

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0
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3answers
118 views

How much faster would computers be if not for security? [closed]

I was wondering, assuming a "The Invention of Lying" world, but where no one was able to steal or misrepresent themselves how much faster would computers be? Just to give two examples of what I mean, ...
0
votes
2answers
241 views

Does iptables work in kernel mode? [closed]

I am not sure about that. It should run in kernel mode in order to avoid some user-mode program to kill/suspend the firewall and do its dirty job. The malware would not be able to kill the firewall ...
0
votes
3answers
84 views

Permissions security scenarios for a web server

Having /var/www/site.com owned by www-data:www-data with a 750 permission for directories and 640 for files, and having my user alexb added to www-data group, I found my self with permission issues ...
0
votes
1answer
289 views

Would adding root to a group open a security hole?

I have a server for which I have created a cron job "sendalerts" to users. Mind you this "sendalerts.php" should be runnable from two methods (via browser and also via a cron job) So cron's job is to ...
0
votes
1answer
372 views

is it OK to grant permission for IUSR_ to cmd.exe?

One of my developers asked me to grant permission to IUSR_ user (the IIS user) to CMD.exe (console) now I'm wondering is it safe to do it? He is complaing, that his libraries had to use console for ...
0
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2answers
115 views

How should permissions be stored?

In a system where users have multiple permissions that may overlap (i.e. "Write" might not include "Read" etc.) what is the best way to keep them in the database? Both in terms of security and ...
0
votes
1answer
107 views

Why doesn't the OS give every application a secret password?

As far as I understand if Dropbox wants to automatically run in the background without asking the user for a password it has to store the password somewhere on the harddrive and has currently no way ...
0
votes
2answers
63 views

How to handle data-dependent Claims?

This question is about Claims-Based Authorization and Windows Identity Foundation (unfortunately I lack the priviledge to create a tag for this). Consider the following simple use case: I have a ...
0
votes
2answers
310 views

How to protect files (cron files) frome being executed by everyone?

I wonder what read / write permissions should I set on my cron files (php files) so they can be executed only by our server. We're using CentOS 5.9 - 64bit and cPanel / WHM + Apache. Thanks!
0
votes
1answer
423 views

website hacked and all its content erased despite the protections

i was hacked by a guy who erased everything. I spent the day to put everything in order, and i would like to find a solution for this : he erased all the files, and also changed the title for "www" in ...
0
votes
1answer
41 views

What technique should I use to prevent unpermitted access to my REST API

I need to build an REST API that can be accessed via HTTPS when given valid credentials. How should I implement those credentials? I am looking for advice whether I should use plain old passwords, ...
0
votes
1answer
44 views

Why is it ok that OS X defaults to ignoring owership on external volumes?

I just discovered this fact tonight and I was rather floored by it. Isn't that a gaping security flaw? I realize that an external drive is less secure by virtue of the fact that someone could simply ...
0
votes
1answer
56 views

What files would I be able to view as localhost?

If I was able to view any page on a website as localhost using SSRF, what files should I check for? I checked to see if I could view robots.txt normally, and I couldn't, but using SSRF, I was able to. ...
0
votes
1answer
264 views

Can local Admin on Windows be given restricted permissions?

Looking at a lot of different security software on Windows, a lot of them rely on some settings on the computer which can probably be overridden by a local administrator. For eg. some DLP software ...
0
votes
2answers
54 views

Should a user be able to change another user's role to match their own?

Lets say a web application has four user roles. Standard, Supervisor, Manager and Administrator. Should a manager be able to promote someone else to a Manager, or only to a supervisor? I realize in ...
0
votes
1answer
346 views

Helpdesk role and local admins

I need to re-work our current security model for desktop computers, and would like some insight as to what changes can be made as well as best practices. Currently we have the helpdesk role that is ...
0
votes
0answers
76 views

Ethical hacking: using a named pipe to insert public key into a authorized_keys file?

I have a couple of CentOS VMs as part of a class I'm taking, I'm just trying to understand how loose permissions (other than the obvious 777) can be taken advantage of. The targetted account on VM1 ...
0
votes
0answers
16 views

Is it a security risk to give read/write permissions to /Library/WebServer/Documents to my main account?

The default setting is that the apache2 root-directory Documents is owned by root and I have to enter a password each time I change it. This is why I want to give full permissions to my user account ...
0
votes
1answer
817 views

WSO 2.5 Found on Apache

I have found on my web server the file wp-conf.php which when you call it from the browser with a url parameter like wp-conf.php?t7831n=any value shows an interface where you can control the entire ...
-1
votes
1answer
80 views

Server security experiment? [closed]

Okay, so I am in a university class where we are using a server. Each student in the class has access to the server. We all share it. I can see their files and open them, and they likewise can see ...
-5
votes
2answers
529 views

PHP injection on 777 file [closed]

Some one has modified a PHP file, which had permissions set to 777, on my VPS server. How can someone do that without administrative access to the server? What information I can give you? I know ...