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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144 views

Best practice for selective opening of ports on network gateway

Our network is currently isolated from the outside by a Linux box, running iptables and Squid to control web access. By default we deny all outgoing traffic from all IP's, to force Web traffic ...
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30 views

PHP can't connect to PostgreSQL with “permission denied” error with SELinux [migrated]

My PHP app can connect when I turn off SELinux, but not with it on. setenforce 0; curl -I http://domain.com; setenforce 1 Yields no errors in /var/log/httpd/error_log. However, if I have it on, I ...
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21 views

Bell-LaPadula implementing by using sets of roles

I have sets of roles defined hierarchically, i.e. role anonymous is a subset of role super-user. The roles are given tu users and also used in the ACL for marking who has access to a resource. ...
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55 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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471 views

Who to assign read/write access rights for a single-user application to run correctly?

My application installs for a single user on a Windows machine. Any user may install the application for himself, but the application will save some information common to all users in a separate ...
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67 views

Relative costs involved in making changes to the current organisational security

I need help understanding what is required by the phrase "a comparison of the relative costs involved in making changes to the current organizational security procedures". Am I to compare the cost ...
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3answers
121 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
462 views

How information in an access log could be used to identify the true identity of an impostor?

Is it possible to use information in an access log to identify the true identity of an impostor who has acquired unauthorized access to a computing system (Perhaps by combining several different ...
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105 views

Bringing in an intern

When bringing in an intern to help you in the IT world and with access to servers and client information, what kind of forms should be signed, especially when they work remotely?
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4answers
166 views

what will happen if us government shutdown Tier-1 internet backbone?

what will happen if us government shutdown Tier-1 internet backbone? Although Internet is designed to be quite resilient: Internet BackBone The Internet, and consequently its backbone networks, ...
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1answer
148 views

setting up website for logged in users, anyone, and files no one should see (via the web) [closed]

I asked how to prevent not logged in users from seeing certain content but the solution I chose to implement encountered a problem. I chose to make my root directory for the server C:\WAMP\www\public ...
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2answers
68 views

Is there a difference between Broken Access Control and Insecure Direct Object reference? [closed]

According to me,if this difference is correct,it is that for exploiting a broken access control you don't necessarily need to be logged into the application,but for exploiting insecure direct object ...
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89 views

physical access proof smart card for disk encryption [closed]

Current full disk encryption on mobile devices rely on low entropy passwords like PIN numbers or pattern locks. Being able to use a smartcard with such mobile devices is a tempting idea. I know that ...
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1answer
102 views

For a Broker/Dealer, what technology is appropriate to limit transaction to a given state? [closed]

The SEC allows for individuals to not register with them if they don't permit business with users outside of the state: A broker-dealer that conducts all of its business in one state does not ...
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5answers
2k views

How can I configure my router to prevent connections bypassing it?

I am trying to configure my router to control access for several of my devices at home. I am currently using a linksys router. Our home consists of three devices (a desktop, a laptop, and a ...
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5answers
482 views

Google Calendar has events that I didn't create and it's not shared

This has been rewritten because at first I thought this may be an accident but now it’s clear there’s a security compromise. In my Google Calendar I noticed an event that occurred each day from ...
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1answer
168 views

How could an attacker have gained remote access to my laptop? [closed]

I have a 15 yr old daughter who's become not only a certified Microsoft Expert, but by pure accident, it came to my attention she'd long ago created a SPLIT network connection on our internet, HIDDEN ...
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3answers
181 views

wireless security concern [closed]

My small office has Netgear Router (N300 DGN2200). I had it secured using "password" . So any computer which needed access had to give the security password. But today a outsider accessed my router ...