7
votes
0answers
72 views

What do studies show are best practices for password expiration policies? [duplicate]

Possible Duplicate: How does changing your password every 90 days increase security? What are best practices for password expiration policies? There are some questions that already address ...
8
votes
1answer
807 views

Is there repetition in the Solaris 11 hash routine? Can I add some?

Solaris 11 now uses SHA-256, so we can have longer than 8 character passwords now, by default. That is nice. I'll just make it clear that this password is never used as a line of defence. Only a ...
258
votes
22answers
292k views

I found that the company I work for is putting a backdoor into mobile phones

I have found out recently that the remote assistant software that we put in a smartphone we sell can be activated by us without user approval. We are not using this option, and it is probably there ...
8
votes
5answers
12k views

How to trace a DDOS attack on a dedicated server and block it?

I have a dedicated server and I'm hosting a game, and the web page (using Apache) for account registering. The server is being ddosed since 8 months ago till today. I've tried to talk with the server ...
1
vote
1answer
411 views

DNS query through squid? [closed]

My IDS picked up our squid proxy server doing a dynamic DNS request. I wasn't aware squid passed DNS requests from the client to the internal DNS server. Is this possible? Snort Alert: ET POLICY ...
1
vote
1answer
136 views

Is there a router that acts as a VPN to get into the network but also sends traffic out through a VPN?

I have several servers that I want to lock down so they're only assessable from inside the network so I need a router that allows me to VPN in. On top of that I want certain ports(22,8022) from my ...
1
vote
2answers
401 views

Does vulnerability exist when using XHR with GET method and custom anti-CSRF HTTP header?

Imagine button after clicking which browser sends XHR http request with GET method. Characteristics: after executing request sensitive action is performed sensitive information is sent in GET ...
7
votes
1answer
3k views

Does NIST really recommend PBKDF2 for password hashing?

We hesitated between BCrypt and PBKDF2 for password hashing. In many forums and blogs people say something like "In their Special Publication SP 800-132 NIST basically recommends using PBKDF2 for ...
3
votes
5answers
3k views

What's a free recommended anti-spyware program for Windows? [closed]

Its been years since I installed an anti-spyware program. Keyloggers and other nasties might have gotten installed and so I'm looking for a program to flush them out. I used to use Spybot-S&D, but ...
2
votes
2answers
4k views

How to check an Android Application for SQL Injection or XSS bugs?

I was just wondering how could i check my client's Android application for SQL Injection or other similar kind of bugs. I mean if its an application, where should i write the queries. If through ...
6
votes
1answer
285 views

Testing a chroot environment for privilege escalation vulnerabilities

I'm looking for holes in my current implementation of a chroot jail that I have implemented for a group of users. Is there anything I can do better here? I utilized the following packages: RHEL6 ...
29
votes
4answers
14k views

Standards for encrypting passwords in configuration files?

My workplace has a standard that plaintext passwords are not allowed in application configuration files. This makes enough sense on its face, in case someone gets access to the config files they ...
4
votes
1answer
626 views

How to determine which security testing method to use if resources are limited

My resources are limited, and thus i am wondering what methodology can I apply to know where black box testing is best fit, where white box testing is best fit? Or even where pen testing is better ...
3
votes
2answers
258 views

How likely is an infection with an outdated skype on linux? [closed]

Today I found an article about a skype hotfix and noticed that the repo I use on my linux notebook: deb http://download.skype.com/linux/repos/debian/ stable non-free Doesn't have the new version, ...
0
votes
1answer
121 views

How bad of a practice is it to mount tomcat's manager to Apache2?

If we take into account only security concerns, how bad of a practice is it to mount tomcat's manager to Apache2. E.g.,: JkMount /manager/html* ajp13_worker I'm doing this because my company has ...
2
votes
1answer
876 views

Classification of attacks in network specially in Snort IDS

What are the main classification of attacks in network and specially in Snort IDS?! Is it possible to power up the Snort by classifying the attack into for 5 main groups, for example; R2L, U2R etc. ...
0
votes
2answers
150 views

Where is cross-site scripting code processed?

Where does the snippet or Javascript get processed when we enter that in input box of HTML page or any URL? Does it go to the server and come back or does the browser process it?
2
votes
2answers
441 views

Google Account Compromised - Possible Investigation?

This morning, I've not been able to login to my Google Account. Google says, my account has been compromised and I had to walk through account credentials recovery and verify (SMS to verify phone ...
4
votes
5answers
1k views

Clicked on fake “Download Now!” ad on file transfer site (legal file for legit purposes) by accident; does anyone know what measures I should take?

I was sent a file by a coworker via "sendshare" - my first time using the service. The page loaded a bit slowly and the ads came in before the actual download link. I was in a hurry to get the file - ...
1
vote
1answer
402 views

Where do I find more information about a given hacking attempt requests to my website?

Having a report which shows me to which requests my website responded with a 404, I often find hacking attempts like this: Some are recurrent and too explicit, like PHPMyAdmin-type requests ...
1
vote
1answer
350 views

Shellcode for higher file privileges

I'm learning exploits from the book Hacking: The Art of Exploitation. The shellcode below was written to enable higher privilege access to files. \x31\xc0\x31\xdb\x31\xc9\x99\xb0\xa4\xcd\x80 ...
0
votes
1answer
106 views

symetric encryption and signature [closed]

asymetric key is normally used for signature for non repudiation. But what if one uses EMV CAP in TDS mode as described here http://en.wikipedia.org/wiki/Chip_Authentication_Program ? Is non ...
5
votes
3answers
733 views

Is it a security risk to embed a commenting service (like Disqus) into our site?

Can commenting services like Disqus, IntenseDebate, etc. pose a security risk for corporations? Edit: What risks could arise when embedding such services into corporate websites?
2
votes
2answers
1k views

Is it true that encryption bit “strength”, although numerically identical, may actually be different depending on the algorithm?

I was reading recently that for AES, the encryption strength is actually the key size/length, so 128-, 192- or 256-bit. While, for SHA-2, the encryption strength is measured against the message digest ...
4
votes
3answers
299 views

What would the cryptographic impact be of knowing the output of /dev/urandom?

Another noob question, I know, but something I'm unsure about. If I somehow magically knew the output of /dev/urandom at any given time, how much would that weaken a given encryption system? Or, ...
1
vote
2answers
567 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 ...
-1
votes
2answers
346 views

Restore session in Firefox

Restore session in Firefox What does this mean, is it related to the session concept which is stored on the web server? If I stop the computer with my web-app, and then start it again before the ...
1
vote
3answers
2k views

Is scanning a site directory considered illegal penetration testing?

Does anyone know if using Dirbuster [link] to scan for unlisted directories and their contents is (possibly) legal in say the US?
1
vote
0answers
57 views

How often should an SSH key pair be changed? [duplicate]

Possible Duplicate: How often should an SSH key pair be changed? I've been using a passphrase-protected 1024-bit RSA key for passwordless SSH via ssh-agent between my own systems for years. ...
21
votes
5answers
7k views

How often should an SSH key pair be changed?

I've been using a 1024-bit RSA key for passwordless SSH between my own systems for years. More recently I've also started using it for passwordless access to my hosting providers and to source code ...
3
votes
4answers
6k views

Two-factor authentication w/certificate and username & password?

Example scenario: ActiveSync Authentication method: certificate-based authentication AND Active Directory domain username-password Encrypted on device: public & private key AD username ...
-2
votes
1answer
611 views

Safest and most secure way for backing up private data

Here is what happened, I first collected my data into one folder,tar'd it, encrypted it with gpg, put it in truecrypt container, and after that started to copy the container to another place, but ...
50
votes
8answers
9k views

Risks of giving developers admin rights to their own PCs

I need to convince my internal IT department to give my new team of developers admin rights to our own PCs. They seem to think this will create some security risk to the network. Can anyone explain ...
4
votes
1answer
246 views

Are we under hacker control?

We have a Web Server that mount Centos. Onto that WS there is an Apache (version 2.2.3) and some sites. You can log on only if you have a certificate (for root user) or via ftp (a restricted ...
8
votes
2answers
2k views

PHP - How to do safe input filtering in the light of multibyte encoding vulnerabilities?

For days now I try to get my head round how to write a secure web application in php, and it turns out to be particularly difficult. The more I read, the more I sink in deep swamps full of ...
3
votes
1answer
209 views

How to protect against exploitation of email addresses from an mistakenly expired domain?

I have a domain name that I have registered for a long time. Due to a combination of bad luck and oversight, the domain name expired and was rebought by somebody else. I am attempting to buy the ...
4
votes
2answers
215 views

iPhone - logging out user when app goes into background

Our (financial/banking) mobile app requires user to enter username/password in order to get data via webservice calls. Once user is logged in, credentials are stored in global variable until user logs ...
4
votes
3answers
2k views

How do I protect myself against 'hole 196'?

I came across this question a while ago and read about hole 196. Is there something I can install on my laptop to protect it against WPA2 Hole196? Software (such as Snort or DecaffeintID) can ...
1
vote
2answers
614 views

Are flash cookies still a threat and that persistent?

One year (or more) ago flash cookies were really a problem, because they could not be deleted from within a browser. They were not managed by the browser but by the flash player. Flash cookies were ...
4
votes
3answers
2k views

Can the salt for PBKDF2 be a hash of the user-entered password?

I want to derive a key from a password in a client application that will be used as a master key that decrypts a data key. As far as I understand the salt should be private knowledge. Would it be ...
11
votes
6answers
12k views

Is my computer at risk of being hacked when using public Wi-Fi?

I'm sitting at a cafe, using their public Wi-Fi. I don't go on sensitive sites; I basically go to a music site and listen to a live stream, for which there's no login. I don't check my email or visit ...
1
vote
0answers
143 views

Recover Word file password [closed]

I have a Word (.doc) file that I created a long time ago I believe in a Windows XP. The problem is I don't remember the password anymore and need to access the file. What would you recommend I do? I ...
3
votes
3answers
256 views

Why are handheld tape recorders used?

Pardon me for doing the following as I know it is cringed upon (the tv reference) but: Is there any good reason for the usage of 'tape' recorders? Ex. taping a conversation between criminals, this is ...
0
votes
1answer
108 views

Changing malware trends in VM

I recently came (Dunno, since when it was happening) to know that malwares can detect if they are running inside a VM like Vmware, and thus can change their behaviour. So my question is how the ...
9
votes
5answers
2k views

Is it safe to send a CSR via email?

I'm new to commercial SSL certificates and would like to know if a CSR that I generate is safe to send via email?
1
vote
1answer
820 views

Is using the same RSA key pair for both (signing and encryption) & (signing and encryption) a bad idea? [duplicate]

Possible Duplicate: Why should one not use the same asymmetric key for encryption as they do for signing? I'm new to IT Security. I still can't figure out why using the same RSA key pair ...
2
votes
2answers
33k views

WiFi WPA cracking with Reaver

This question is for anyone who has tried or succeeded to crack WiFi WPA/WPA2 keys with BackTrack Linux and Reaver. So, I wanted to test it on my WiFi router. I started everything as described here. ...
42
votes
1answer
2k views

What's the risk if I accidently type my password into a username field (Windows logon)?

I'm used to logging into my personal Mac which is a password-only field (like waking from sleep mode). Sometimes I have to use a Windows network on which I have an account, but of course I have to ...
3
votes
2answers
2k views

sanitizing input/output in php/codeigniter

I've been making some progress learning about web application security. Right now I'm trying to finalize my strategy for sanitizing input and output. Background: Users can submit reviews to the site, ...
0
votes
2answers
2k views

Will virus downloaded to guest OS affect Host OS? [duplicate]

Possible Duplicate: How secure are virtual machines really? False sense of security? If I download a file in Guest Windows XP machine in Vmware Workstation, which is a virus. Can it affect ...

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