A security mechanism which enforces policy describing which requesters may perform operations on specified objects. There are typically multiple types of operations. Common operations include: read, write, execute, append, create, and delete.

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411 views

Installing Joomla with nobody:nobody user/group (CentOS/cPanel)

If you are installing Joomla via cPanel's File Manager to your mywebsite.com (user mywebsite) account, you will upload the package to your server and extract the archive. All files will have the user ...
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1answer
80 views

Storing opened mail attachments unencrypted in /tmp is a normal thing?

So there is an E-mail client. I can encrypt its database with a few clicks in its menu. But it's storing the opened attachments unencrypted in /tmp/foo/bla.xls. The bla.xls has 644 UNIX permission ...
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2answers
203 views

Main requirements to secure my Application in any database related features

I have an application which is hosted on a windows server on which an SQL DB exists. This server communicates with the clients and agents installed on host PCs through TCP/IP and SSL connections. I'm ...
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1answer
75 views

Starting point for Mobile Device Security particularly in a MDM setting?

I am looking for some good reference material (books, blogs, names, etc..) regarding Mobile Device Security. I am specifically interested in Corporate Mobile Device Management (MDM) where often ...
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2answers
163 views

passwords database - access control and/or synchronization

so, we've got a ton of passwords that several different administrators need to have access to, each with their unique password/key/user/whatever... it needs to be either centralized, or the passwords ...
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876 views

How secure is github's whitelisting CORS domains?

The Github API allows you to make requests using CORS [1]. The CORS requests are only allowed by certain whitelisted domains : Any domain that is registered as an OAuth Application is accepted. ...
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585 views

Closing handles of a process as a regular user

Here's the situation: As an adminstrator, I am able to stall the application by closing 2 handles held by the process. (Using ProcExplorer) . Is there any way/hack I can use to close file handles ...
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223 views

IPtables - Accept Arbitrary Packets

I've achieved a lot on blocking attacks on GameServers but I'm stuck on something. I've blocked major requests of game-server which it aceepts in the form "\xff\xff\xff\xff" which can be followed by ...
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0answers
14 views

How to access files or getting rights access with NJrat

When I'm using NJrat to control my own computer, I can't delete, open or move some files. Are there some kind of security access I need to stop first? How can I change this to allow full access?
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29 views

Access Control that are used on Ubuntu? [closed]

I want to ask about access control that are used on Ubuntu. I already read Ubuntu Access Control List but I'm still confused. Is there someone can explain about access control on Ubuntu? Because ...
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49 views

Why allow access without an access token but deny access with an invalid access token?

I encountered a data storage service with rather weird access policies. There're "folders" with "files" and each "folder" can have either of the following permissions: anyone in the world can ...
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302 views

Since when Access-Control-Allow-Credentials is required?

About several years ago I found a website during a pentest which had the Access-Control-Allow-Origin header set to "*". I made a POC to get the response of a webpage from an untrusted domain. The goal ...
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174 views

Can we create custom APDU for non-smart (memory type) contactless card?

I want to implement card-based authentication for the parking system in a university. Currently all students own a Java Card-based student ID card, if they have not broken or lost it. Can we create ...
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525 views

automatic connection from LSASS to different IPs. Is this the usual behavior?

I'm using windows 7. firefox 22. connecting through a regular residential wifi router. In the last month I've noticed that when I connect to the internet and once in a while my firewall indicates me ...
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0answers
51 views

What's The Easiest Way To Maintain Remote Users Access to a Webapp

Here is a real world case: A chain of high schools (several hundreds) has many websites (~ 3x number of Schools) that are content driven by users (the students). Every school maintains about 2-4 ...
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244 views

What is the best way to manage temporary accounts on Active Directory [closed]

The organisation i work for has a high turnover of staff and we have a 5 day SLA to set up a new user. However this seems to be inefficient for ourselves and the business we serve. Is there anyway ...
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6answers
361 views

What sort of security method is this called (if it has a name)?

I have thought of a way of securing access to an application interacting with another application. Using this method Application 1 - "What is the sum of 1+1?" Application 2 - "3" Application 1 - ...
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3answers
429 views

Is a console application with NT Authority/System rights dangerous?

A developer managed to open a console application with NT Authority/System rights at the startup screen before logging in. From that command prompt it is possible to execute arbitrary programs like ...
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3answers
306 views

Keyless entry security systems and HIPAA implications

We are upgrading our office to have badged security doors. What I would particularly like to know is if Keyless Entry systems exist or are of decent quality. By this I mean, I would like the doors ...
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3answers
363 views

What security issues will I face with outsourced VPS server?

Our small comapny wants to launch a paid service, hosted on the outsourced VPS server. The obvious risk is that the machine is physically not in our office and that possibly the database could be ...
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3answers
232 views

Using remote desktop

I was having trouble getting Outlook to work with my schools email account and called the help desk. They gave me a link to install a program called Bomgar. I installed it and clicked "allow viewing ...
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2answers
325 views

Can you pick up any device specific information by monitoring bluetooth signals? [closed]

Could I use some sort of permanent device ID broadcasted by the bluetooth radio in my phone to do something like unlock my door? I don't want to have to ever pair the device, or take it out of my ...
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2answers
91 views

Access token vs. UserID + access token

My goal is to associate (authenticate) hardware devices to users in the database. The access token is generated via webinterface. It is then entered into the hardware device by the user, and the ...
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2answers
60 views

Contents retrieved from a not protected url from content owner's server. Legal? [closed]

Is legal to use contents retrieved from a not protected url (no authentication involved, just a public accessible URL) from the content owner's server? Is legal to distribute urls pointing to that ...
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2answers
131 views

Allow or Deny Access to a Network Based on Client Hardware [duplicate]

We have to build a product that will have a network. Users will be able to connect to this network by downloading a client. However, before allowing them to access the network we want to check if ...
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2answers
175 views

How to allow only the public key owner to submit requests to my site? And what is this type of security called?

This was probably asked many times here, but I'm not finding any because I'm not sure what to look for. I'm developing a simple payment gateway, where partners (consumers) can submit requests so ...
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2answers
583 views

Access control matrix and integrity

Can access control matrix in addition to confidentiality provide the integrity of the objects to which access is being controlled?
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1answer
70 views

When can the exploit for CVE: 2006-7098 be used?

I'm studying the vulnerabilities of an old version of Apache, the 1.3.34. And I don't quite understand in what exact situation the CVE 2006-7098 vulnerability can be exploited. The README included in ...
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3answers
1k views

Prevent a server side script from a direct URL access

There is a server side script written in php(say backend_file.php) or coldfusion(say backend_file.cfm). Lets say, i am using Apache and I have a sample web folder (on my Localhost) like: ...
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2answers
71 views

How many accounts should I have in an information system?

Is it a problem to have more than one account in an information system from security point of view? Let me clarify a bit. It is a bank system. I wonder if having a CSO (customer service officer) ...
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2answers
126 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 ...
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2answers
116 views

Anonymizing data for applications

I try to design a system which reads events comming from devices, stores them and exposes API to various applications. Originally I wanted to introduce a module Id translator, so I would store only ...
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1answer
216 views

Employee Snooping [closed]

I just got hired at this SW tech company with a few IT gurus in it. There is a clever genius that is suspect. He obtained my personal home email address I use. It was obtained from company ...
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1answer
310 views

Difference between password expiration and account expiration [closed]

If a password expires, the user can't access the account. If the account expires, the user can't access the account... So, what's the difference? Just that in the case of an expired account, I'd need ...
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1answer
306 views

Can I use a vpn to securely use prototypes of webapps from my phone or laptop?

I want to experiment with web development (using django) for both desktop and mobile. Server, phones and desktops could all be part of the same virtual private network. The VPN will be from some ...
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1answer
40 views

Restrict access to a specific type of entity

I want to create a web service that can only be accessed by a specific type of entity: my own mobile application. Is there any well-accepted methods to do this? I'm thinking about embedding a secret ...
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2answers
423 views

File shares from a DMZ into an internal network

We have a firewall policy that prohibits MS RPC through firewall, particularly from internet facing DMZ's back to the internal network. There is a business unit requesting an alternative method to ...
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1answer
560 views

Standards for physical Access Control systems

Hoping to help protect an IT installation, I've been looking into physical protection systems, specifically Access Control for protected areas. The field is quite big. Are there any US or ...
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1answer
497 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 ...
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1answer
43 views

Control access to public API

I'm working on a public API for project X. System allows to register an app_id and call API methods providing it, as usual. Now, I need to develop an official mobile client for project X that should ...
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1answer
58 views

rate limiting and access filter for web application

I had a requirement of rate limiting and dynamically access controlling access to web application dynamically I want to be able to rate limit access turned on / off dynamically black/white list ...
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1answer
92 views

Can I configure a router to control access from my children's telephones as well as other devices?

Our children use both iPhones and Motorola phones. We get worn down by the fights about "confiscating" the phones, and want to be able to block access to the Internet on a device-by-device basis when ...
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1answer
48 views

Directory Listing on WordPress

If a WorPress application that uses the Akismet wordpress plugin has certain directory listing exposed publicly, like, akismet-en_AU.po and the other .po files, and directories like plugins, themes, ...
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3answers
448 views

Securing apache by IP with .htaccess

I have a folder that I don't want to be accessible from outside my network's LAN. It seems like all traffic from the outside world goes through my firewall (192.168.1.39). So I made my .htaccess as ...
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1answer
299 views

is UPnP / NAT-PMP really necessary today?

The possibility to enable port forwards for any hosts inside the LAN has of course security implications. The problem from my point of view is not that there are bad users, but bad hosts/programs and ...
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3answers
58 views

Restrict access to admin area by checking SSH connections

Assuming that the users have dynamic IPs (so I can't whitelist) and that setting up a VPN is not an option, is it a valid approach to restrict access to an administration area by only allowing IPs ...
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1answer
1k views

Protecting MYSQL with Fail2Ban? [closed]

I have a bunch Raspberry Pis collecting data from behind client firewalls. I want to start sending this data to MYSQL server. Because the Raspberry Pis do not have static IP addresses, I obviously ...
0
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1answer
70 views

access control-intersection of subjects’ permissions

In the book named "operating system security", I read this paragraph: "Protection domains can also be constructed from an intersection of the associated subjects (e.g., Windows 2000 Restricted ...
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249 views

Storing passwords and other data for coworkers

At the moment we are encrypting our server passwords and other important data internal via PGP. Every coworker has got his/her own private key/pass combination set up on their workstation. The problem ...
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1answer
81 views

how to stop write downs

Consider a scenario with two security levels, Alice and Bob. Bob is Alice's boss. Bob must be able to read Alice's documents but not write anything to her documents. I am using encryption keys to ...