4
votes
3answers
876 views

Deciding whether user has left the site without logging out or has simply left the site open for notifications without actually doing any work?

I am developing my site using server side sessions using redis as backend for saving the session. Now the issue which is bothering me is of user leaving the website without logging out. I mean user ...
3
votes
2answers
2k views

Secure communication between C# client and Java server, using certificates

I want to secure communication between simple C# WPF client and Java server. Now i have already implemented raw sockets communication, and my security is based on: server send RSA public key to ...
1
vote
0answers
277 views

Unauthorised Perl Scripts [closed]

One of my servers just had the memory exhausted by a load of Perl scripts, we use plesk and they seem to have appeared under the /var/www/vhosts/domainexample.com/cgi-bin/ directory, I managed to stop ...
2
votes
1answer
505 views

Active Directory: Should Workstations be separated from servers to protect from related domain hacks?

How should I protect domain joined hosts in the same AD domain from the Related Domain Cookie Attack? Suppose there is an AD forest called example.com. This company has a variety of internal and ...
5
votes
1answer
1k views

How to use DPAPI under load balance environment

DPAPI can be used to encrypt the secret data. We intend to use it in our web app to encrypt some data and store the encrypted data in database. When needed we decrypt the data and present them on ...
5
votes
2answers
245 views

What aspects of hardware configuration are significant from a security perspective?

What is worth keeping in mind (security-wise) when choosing a set of hardware? For example, might a cheap (or obscure) setup like a Raspberry Pi make for a less secure server than a more standard ...
2
votes
4answers
979 views

Chrome Frame is an example of how browsers “merge together”. How can I unmerge all of them?

Chrome Frame is an add in that integrates with IE and Firefox. Firefox has a similar component, and I hear that the .NET runtime finds its way into all the other browsers. Additional integration ...
2
votes
2answers
174 views

For untrusted user upload sites: what should the contents of crossdomain.xml and clientaccesspolicy.xml be?

Flash has a long history of ignoring MIME types of files and reading the file directly for executable content or for cross domain execution permissions. That means a malicious user can take advantage ...
26
votes
1answer
3k views

What cookie attacks are possible between computers in related DNS domains (*.example.com)?

Here, several servers in the same DNS domain emit cookies under a variety of settings (scope, HTTPS, Secure) and another host emits a cookie with the same value. Example Suppose a user has the ...
3
votes
3answers
388 views

Are there any same origin issues (SOP) with TOR?

Are there any issues with Same Origin Policy (SOP) with TOR or *.onion addresses? I'm thinking of cookies Plugins (Silverlight, Flash, Java, etc) Javascript
7
votes
2answers
356 views

In Linux, when I consider trusting a new software source, what do I need to evaluate?

When I'm using the Linux software PackageKit, I get confused about what specific items of information I will need in order to decide whether to authorize software installation from a new software ...
0
votes
2answers
1k views

Issuing browser certificates to Chrome and Firefox with Microsoft CA

Most companies use IE with an ActiveX control to create a CSR and submit it to the CA for approval. Since many browsers either block or don't support ActiveX controls, how can I enroll them using a ...
6
votes
1answer
431 views

Epson Projector security threats

I have an EPSON PROJECTOR (model EB-824H) And I would like to use it in our company. As I know (but not sure) this kind of projector has no WIFI,no network card and there is no HD in this PROJECTOR It ...
1
vote
3answers
3k views

How does a DOS attack work when attacking a single server with a single client?

How is it possible to make a DOS attack from a single computer? Let us assume two computers, one acting as server and the other as client. Both has 100/100 mbit bandwitdh. How can then the client ...
12
votes
3answers
7k views

How does deauthing work in aireplay-ng?

I have a question of how aireplay-ng works when it deauths. I mean, it is really easy to disconnect another client from an AP: you just need to run the deauth command (in aireplay-ng) once, specifying ...
31
votes
3answers
11k views

How does “check.torproject.org.” know if you're using TOR?

I'm looking at the results from the following URL and would like to know how does the TOR website "know" that TOR is being used or not. ...
1
vote
2answers
125 views

Can I instruct a Telco to prevent 2G connections from our phones?

Given that 2G is proven to be insecure (broken) at DefCon, is it possible for a Corporate IT department to work with the Telco and ban 2G connections for their devices? Some cell phones are unable to ...
1
vote
0answers
655 views

A proposal for Data Transmission and Password Encryption [closed]

I need to implement a sensitive data protection scheme which can meet the requirements on secure data transmission, protection and storage, assuming mutually trusted third party is not available, that ...
4
votes
1answer
793 views

Does KASUMI (A5/3) Related Key attack apply to 3G or other mobile providers?

The KASUMI is a block cipher used to encrypt UMTS, GPRS, and GSM SMS messages. The references section in Wikipedia says that a related key attack is possible in 3G systems. Q: Has it been proven ...
7
votes
3answers
590 views

How to gain a shell?

I'm doing an exercise (exploit-exercises.com) that requires me to gain access to a shell running as another user. My question is this: I can create application that is guaranteed to be run by the ...
1
vote
4answers
10k views

blocking direct access to files via url input while still allowing a script on server to access files

I am trying to accomplish the following and have been unsuccessful. I would appreciate any insight. Scenario: http://www.mydomain.com/filename.html is a webpage. On this webpage I am running a ...
2
votes
3answers
164 views

What is the likelihood of getting sensitive information off of a backup tape?

For purpose of the quesition, I am going to paint a picture: A system administrator maintains and backs up a production server for clients with sensitive financial information (account numbers, ...
3
votes
2answers
119 views

Someone else's cloud infrastructure too sketchy for large enterprise SaaS application?

I have a set of geared-to-enterprise SaaS services I will be trying to sell soon to a number of large companies. In IT and Security reviews for critical software in the past, as a vendor you were ...
7
votes
3answers
3k views

Why does OpenVPN require securely sharing certs with clients?

The ubuntu docs on OpenVPN have this part in the instructions: Copy the following files to the client: /etc/openvpn/ca.crt /etc/openvpn/easy-rsa/keys/hostname.crt ...
21
votes
7answers
7k views

Can PHI be HIPAA compliant on a cloud?

I have read conflicting information on whether PHI can be stored and delivered on a cloud in a HIPAA compliant manner. I hear many people saying you cannot share infrastructure and be HIPAA compliant. ...
9
votes
6answers
575 views

How can I share sensitive information with my team?

I need to share information with my team, like passwords and credit card numbers. The needs are pretty minimal -- just an encrypted "spreadsheet". Keepass is potentially a solution but the user ...
10
votes
1answer
2k views

Do burned DVDs contain trackable information?

I'd like to know if it's possible to burn a video DVD (not just a regular CDFS DVD with video files in it; I mean a DVD that you can play the video of using regular DVD players), without the ...
1
vote
1answer
844 views

Open source firewall with multi wan support [closed]

I use smoothwall express and also used IPCop. But now I need to have multi WAN support as I want to use a DSL and Cable internet connection together to increase my speed, specifically upload speed. ...
9
votes
4answers
447 views

If I try to log into the wrong host with FTP do they now have my credentials?

Say I make a typo in the host name. Are my credentials now somewhere in the wrong hosts server log? Should I go about changing my credentials just in case now?
2
votes
1answer
327 views

iPhone Credit Card Payment

I am trying to understand what is the best way to implement a credit card payment flow into a native iPhone app. From what I see on the market, most of the apps use a WebView to process the payment. I ...
4
votes
2answers
2k views

How long shall a certificate be valid?

See title. Are there any sources where there are recommended validity times of certificates (based on length, algo, etc)? I'm particularly interested in validity of RSA certificates...
10
votes
4answers
7k views

pros and cons of a bootable BackTrack instance vs installed

I've been wanting to mess around some with BackTrack to get a better understanding of some of the tools out there for penetration testing. I have a Linux box that isn't doing much right now that I was ...
11
votes
3answers
990 views

Should an admin user be able to edit passwords?

For your typical web app, should an admin superuser have the right to edit a user's password, or should only that user have the right? (Even with edit ability, the admin would never see the current ...
3
votes
3answers
706 views

Do you give local administrator account password to notebook users?

My notebook users need to travel a lot. Quite often, they need elevated privileges on that machine, like when adding a printer or change network settings. Should I give them local administrator's ...
27
votes
2answers
18k views

where to store a key for encryption

I am looking for a way to store a key used for password encryption. I am using a mysql db which would store a user name and an encrypted password that would be encrypted using ...
5
votes
3answers
519 views

Why does switching to “n-only” help preventing attacks on WPS?

I just cracked the ap of a friend of mine (Linksys E4200) and we were looking for a way to rid him of the vulnerabilty. Unfortunately the E4200 does not disable WPS when you tell it to (via web gui). ...
4
votes
2answers
3k views

How do I use DuckDuckGo securely?

The Privacy Policy of DuckDuckGo.com mentions using HTTPs and POSTs affects the privacy of the search requests. Since HTTPS is disabled by default, and POSTs is enabled by default, how does this ...
4
votes
1answer
266 views

Recommendations for hosting highly sensitive data

I am doing some investigation on hosting sensitive data. Mostly finance and fund data but at a personal level. This will be a secure website where users will be able to login and view their fund ...
3
votes
4answers
3k views

Reboot to clean state daily, on Windows

I already know that this can be done on Linux, One can boot to a flash drive that is write protected. Live modify folders can be symlinked to to a swap partition, and this prevents viruses from being ...
8
votes
2answers
253 views

Where to find papers / information about spyware, tracking and cookie problems?

I am right now working on a problem and looking for some papers / information about spyware, tracking and cookie problems. I am no expert in that area, so I lack the knowledge where to find material ...
3
votes
1answer
282 views

What project is a good SILC substitute?

As time has marched on, it would appear that the Secure Internet Live Conferencing (SILC) client/toolkit have lost a bit of steam, I can't find any current mailing lists, their website doesn't seem to ...
7
votes
3answers
1k views

BlackBerry handheld penetration testing

Are there any relevant resources, tools or documents about penetration testing of BlackBerry handhelds?
4
votes
5answers
6k views

Reverse engineering (decompiling) an .exe file in OSX

I am a complete newby in the reverse engineering world, and being able to decompile .exe files in my OSX is being a pain. Does anybody know a good decompiler of .exe for OSX, or any hint about where ...
1
vote
0answers
353 views

NetSec/InfoSec position salary expectation and negotiation [closed]

I'm about to receive an offer for a position of "Security developer / Pen-tester" that I have been interviewing for. The firm is moderately sized and as some very big clients, so in terms of cost vs. ...
6
votes
3answers
8k views

Why do I need a firewall on my router?

I just bought a new router, and as usual the router manufacturer make a big deal out of the firewall. I have never understood why the firewall is needed, sure, stopping dos attacks (such as ...
6
votes
2answers
12k views

Detecting the presence of wifi devices

Is it possible, with a normal wifi adapter, to detect present wifi devices in the surrounding? Let's say, is it possible to detect an Iphone with wifi switched on in the range of my wifi adapter? ...
10
votes
3answers
625 views

How can I promote good password practices in an organization that doesn't currently care about that?

I work with an organization that uses some very poor practices such as using default user accounts, default passwords (or passwords the same as user accounts), sharing password information between ...
5
votes
5answers
3k views

Encryption laws in India — is it allowed to use ssh and VPN?

I have a very similar question to the one asked here (regarding Iran). However, I would like to use ssh and vpn while being in India. I found already this survey of cryptographic laws but I don't ...
3
votes
3answers
2k views

Mobile OTP - Secure?

I came across Mobile-OTP, "a de facto standard for strong mobile authentication" (http://motp.sourceforge.net). The developers claim that it is very secure etc. Reading through the implementation, I ...
43
votes
5answers
6k views

Password security in databases - today still best practice? [duplicate]

Possible Duplicate: Which password hashing method should I use? There are a ton of great posts about password security in databases on stack overflow and on other sites and as I am ...

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