Tightening security on a system.

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1answer
475 views

Hardening Web Browsers - Detailed Guidance

Is there any specific and complete guidance on what is needed to harden a web browser given the number of attack vectors possible, particularly given that browsers allow so many varied plugins? All I ...
2
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2answers
285 views

Checklist for securing MacOSX

Is there a checklist for securing MacOSX machines?
2
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1answer
129 views

Forefront Identity Management Server Hardening

Is there a good document for hardening FIM? I've tried CIS and NIST, but I couldn't find anything. If there is no such document, what would I have to look out for in the configuration?
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5answers
2k views

Securing a laptop against attacks (article)

I came across this article when looking for ways of hardening my laptop, and this guide seemed extremely thorough. It is perhaps overly paranoid, but it will be good to have a guide I can trust should ...
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9answers
24k views

Why block outgoing network traffic with a firewall?

In terms of a home network, is there any reason to set up a router firewall so that all outgoing ports are blocked, and then open specific ports for things such as HTTP, HTTPS, etc. Given that every ...
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2answers
1k views

How to correctly secure a ssh session against MITM attack?

How do you improve the security of your ssh session against a man-in-the-middle attack?
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2answers
891 views

Can a webcam be turned on when disabled in Windows' device manager?

In addition to whether a webcam can be turned on without the indicator light, I was wondering if disabling the device in Windows' device manager is a good option. Of course when your system is ...
7
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5answers
979 views

Securing Debian Apache PHP Server

I have Debian Apache PHP server. I want to secure him after the classic installation process. My usual steps are : List item update all packages remove all unnecessary services like named, portmap, ...
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2answers
1k views

How helpful is rkhunter?

I have a software firewall implemented on my server, and I have closed all unnecessary ports. I have strong passwords, and I validate user input on my website. With these things already in place, do ...
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2answers
2k views

How to harden my Buffalo LinkStation Pro?

The Buffalo LinkStation Pro Duo that we use can be pretty easily hacked into. The good thing about this is that this NAS runs Linux and can therby be improved in features, e.g. running an NFS or LDAP ...
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3answers
2k views

What can a hacker do when he has physical access to a system?

I mean, I'm a tech guy here in my region (not a hacker...). When I sit in the front of another person's PC, I notice a little fear about what I can do in the system. It's obvious that I will not ...
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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 ...
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3answers
270 views

Why should every file have a user and a group?

I've been reading in most hardening guides for linux, that you should check for files and directories without valid user or valid group. What I can't find, is how this could be used for an attack, or ...
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3answers
4k views

Building a secure server with CentOs [duplicate]

Possible Duplicate: Hardening Linux Server I recently started to manage my own server with a cloud-based server. Recently I got hacked somehow and the server was used for phising. On the ...
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2answers
228 views

Protect sensitive data from sysadmin prying eyes

I'm thinking about this problem. What if I have to manage sensitive data (i.e. health data), and I use a managed server? I'd use encryption of course, but if they have root access they can see conf ...
6
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3answers
686 views

How to effectively (and reasonably) secure Windows in corporate environment.

A member on my staff recently had their work computer compromised while on their home network. The following is the information regarding their computer Windows XP SP3 - fully patched at the time of ...
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3answers
448 views

Is this approach of securing cookie secure?

I could not find writeups about secure cookies so I have done some thinking. (I already have a "secure" password database with bcrypt and salt) Steps: User logs in Save user IP + randomstring in ...
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3answers
420 views

How would one make a network resistant to the unknown?

I play in a game which includes normal risks, but also a wide range of supernatural powers which could affect the security of a network. These may be as prosaic as a retrieving data directly from a ...
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1answer
679 views

Hardening a perimeter router

What are some of the steps that could be taken to harden a perimeter (internet facing) router from attacks by potentially malicious users?
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1answer
399 views

What are some good ways to secure personal computers

I see that many topics here are related to securing data, equipment at an enterprise level. Good advice includes stuff like blocking all unused ports, allowing only whitelisted traffic and installing ...
2
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1answer
936 views

EMV Security? How is it possible that it's secure?

I recently read some articles on EMV and the various ways in which it has been improved over the years. I then read this which shows that it has been possible for some time to exploit EMV via a man ...
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1answer
1k views

How do these Windows services affect the security of Windows Firewall?

Its common to disable unneeded services in Windows 2008 R2, but sometimes I come across installations that use Windows Firewall and related services. More info: see service dependencies for Windows ...
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2answers
462 views

What are best practices for implementing Remote Desktop within a corporation?

After the recent critical vulnerability: 'MS12-020: Vulnerabilities in Remote Desktop could allow remote code execution' I have been looking for a hardening checklist or in the scenario that I am an ...
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3answers
1k views

Is it a secure way to declare DB parameters in htaccess rather than in a PHP file?

It has been suggested in securing PHP article that using directive as below in htaccess is more secure than hardcoding it into your app: <VirtualHost ilia.ws> Include /home/ilia/sql.cnf ...
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2answers
1k views

NSA RHEL5 Checklist

The NSA has came up with the "Guide to the Secure Conguration of Red Hat Enterprise Linux 5" (http://www.nsa.gov/ia/_files/os/redhat/NSA_RHEL_5_GUIDE_v4.2.pdf) I have read through this guide and it is ...
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2answers
606 views

Hardening network infrastrucure? [closed]

I would like to know, what are the best hardening methodologies, procedures, and books to use when hardening your network? Especially for the following: Windows /Linux Server SQL server Microsoft ...
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2answers
5k views

Available Resources for Securing RHEL 6

Some in our infrastructure group want to upgrade to start taking advantage of the new features in RHEL 6. In the past, I have relied on the NSA Guide to secure RHEL 5 and CentOS 5 installations. I ...
6
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1answer
978 views

Hadoop security, isolation, and hardening

This is a multiple part question, which all really come back to the main question: How best to protect data in a Hadoop (wikipedia) cluster. (Current version, vanilla main-branch distro - ...
13
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3answers
1k views

VPS security best practice

I've just signed up for a linux VPS to host a website I've been creating and I need some advice on the best approach to secure it. I've previously been hosting it off a VM in the house, but I want to ...
5
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1answer
1k views

Blacklist IP addresses based on number of 404s in Apache

I'm getting a lot of hackers spamming my domain with requests for files that just don't exist. This is eating up a lot of my allotted bandwidth and I'd like to blacklist these IP addresses. Is there ...
5
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2answers
5k views

How to secure a dedicated linux server running a LAMP stack for commercial E-commerce use

To be more specific, I would like to get some help, either through a tutorial or through a book, on how to configure an apache server to run securely and minimize the risks for commercial use. ...
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2answers
300 views

Do I have to harden IE if I'm only using Firefox?

Assume a Windows 7 system (probably whatever home version comes with the machine), with the latest OS patches, latest IE and latest Firefox. Also assume that the user uses only Firefox for browsing, ...
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2answers
2k views

Security implications of having files owned by the apache user?

Currently running a LAMP instance that developers are using for a variety of webapps. I have the following scenario: Multiple developers need access to create and modify files under ...
28
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20answers
4k views

How can I prevent my kids from bypassing my computer restrictions?

My son has a downloaded copy of Ubuntu that he uses to "break" into my computer, bypassing Vista. I have two questions: Can this damage my computer or corrupt my files? (I have lots of pictures) Is ...
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4answers
2k views

Fastest way to “lockdown” CentOS and have network intrusion detection, firewall, etc up and running?

Are there any proven concepts or "installers" to get up and running based on the best practices securing and locking down a CentOS installation? I'm hoping for an automated tool that would scan the ...
7
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1answer
5k views

How to secure a ActiveMQ?

Does anybody have experience with securing/hardening ActiveMQ? Check lists or guides would be welcome.
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6answers
5k views

Keeping secrets from root on Linux

I am looking for ways to harden a linux system so that even when gaining full root access (through legit or non-legit means), some secrets remain inaccessible. But first a little background. Many of ...
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2answers
6k views

Implications of Trace/Track Methods on Apache

When performing vulnerability scans using Nessus, against a host running Apache, one expected result is always "HTTP TRACE / TRACK Methods Allowed". While this result only has a base CVSS of 4.3, I ...
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3answers
10k views

How to secure a MongoDB instance? [closed]

Does anybody have experience with securing/hardening MongoDB server? Check lists or guides would be welcome.
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2answers
754 views

ICMP redirects and source routing in the wild?

Theoretically, ICMP redirect messages (IPv4 and IPv6) and source routing (IPv4) / routing headers (IPv6) are very dangerous. However, I'm curious as to if attacks using these features really work in ...
3
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3answers
447 views

Servers: Why a separate device for a firewall, aside from reduction in IP spoofing or increase in performance

Why should the firewall be outside the server, excepting these two items Take the performance impact of noise off of the server. Add a physical layer between devices so they can be on separate ...
6
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2answers
3k views

php.ini security setting after attack

My website have been attacked and I need a best practice for a php.ini I have done some reading but I am still not sure if I covered most of the options. here is my settings: file_uploads = Off ...
5
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5answers
806 views

What are the likely threats to a public-facing DB instance?

Quick intro: Small company, VERY limited resources. I pretty much do everything including take out the trash. We've been running an instance of MySQL internally for years and it's worked OK, but I ...
5
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2answers
337 views

Advice for writing my first application security review

I wish to write a security review for a specific windows server/client application that runs on a closed LAN or WAN (between 1 and 200+ users across multiple sites); it's not a web-application. The ...
2
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5answers
518 views

What should one do when he/she wants to protect him/her home--computer--?

As you know, deleting a file by pressing shift-delete or by using the Trash doesn't mean that the file is unrecoverable. It's data persists on your computer. In day to day life, adversaries use ...
14
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3answers
3k views

Bruteforce attack on my FTP server

I recently setup VSFTPD on my personal server for sharing files over FTP. In the vsftpd.log file, i see hundreds of failed attempts to login with usernames like "adminitrator" , "adminitrator1", ...
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4answers
2k views

Recommendations for Changing the Default Shell For Service Accounts

It seems as if most Linux systems use either /sbin/nologin or /bin/false as the default shell for service accounts. Many hardening guides, such as CIS benchmarks, recommend changing the default shell ...
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2answers
330 views

Oracle Internet Directory (OID) hardening

What are best practices, recommendations, required reading for securing/hardening an Oracle internet directory? note: OID is compatible with LDAP version 3.
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5answers
1k views

Best practices for securing an iPhone

As this question on voicemail protection got answers veering more to protecting the mobile phone, I thought I should add a specific question on this topic. There is already a question on protecting ...
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2answers
1k views

How do we protect our server from anonymous hacker? [duplicate]

Possible Duplicates: Hardening Linux Server How to best defend against Targeted Attacks? I read this news: Anonymous hacker group hits Apple, publishes data My question: How do we ...