1
vote
2answers
257 views

Hashed Database: Hash Functions

Let's assume there is a database containing names and each name is hashed and the clear-text is deleted. If an attacker were to steal this database, would he/she be able to get the list of names?
1
vote
3answers
325 views

How to minimise risk to sensitive data in temp files in shared hosting environment before encryption?

openssl_pkcs7_encrypt() requires the data to be encrypted to be read from a file and so unfortunately it requires sensitive data to be written to temporary file before being encrypted. In a shared ...
1
vote
3answers
296 views

Is there a way to get information out of the router [closed]

Is there any way (directly from a computer or device) to see the packets that pass the router from the different devices. Thanks.
1
vote
3answers
323 views

Hash algorithm without ASIC's

I want to design a new crypto-currency, with an algorithm which is different from SHA-256 or Scrypt. But in order to do this, I need to know the hash algorithm which is the hardest to make ...
1
vote
5answers
575 views

“Safe” public WiFi [duplicate]

Is there any danger of any of my computer's files being read or changed (mainly - infected by malware) in the following scenario (I'm using Windows 7): I have file sharing turned off (in "advanced ...
1
vote
3answers
1k views

How to detect anomalous activity in web server traffic?

I'm wondering how to successfully detect malicious activity in my web server traffic? Could you point me out some popular solutions which can help me to detect attacks on my web application? I ...
1
vote
3answers
340 views

Teaching Introduction to Information Security as a mandatory course. Please your advice

I deliberated whether I should publish this question here, or in CS.stackexchange. I decided to do it here, as I think that the opinion of security experts will be more helpful. I'm teaching in some ...
1
vote
3answers
302 views

Should I trust my bank after this [closed]

I have just discovered that I can login to my bank with passwords that is not mine. Example: My password is "1234" but I am authorized with all possible post characters. For example "12345" or ...
1
vote
3answers
293 views

hardware firewall placement

In a home office environment with cable internet, can a hardware firewall be placed in front of/upstream from a cable modem to also protect the modem from tampering by the isp or a hacker?
1
vote
2answers
296 views

How to restrict access to unwanted sites?

I use Ubuntu 13.10. I tried to used OpenDNS to restrict some websites. Unfortunately, I couldn't do that. I use AirStream 1200 USB modem to access WiMax internet. OpenDNS setting didn't work for me at ...
1
vote
5answers
5k views

Can I use Kali Linux when I learn Backtrack well?

I'm new to security issues and I am considering buying a course at ELearningSec (beginners course,of course). I am planning to work in a company and want to learn about offensive and defensive skills ...
1
vote
1answer
167 views

question on rooting

Rooting a server is done through uploading a shell on a target website and running a root exploit to gain root privileges on a server thus gaining access to sites that are hosted on that shared ...
1
vote
2answers
136 views

Is there any point to keeping a “Verified by X” image on the page for a page secured by SSL?

So, I saw this on a page: (The redacted part says the name of the entity that owns the domain) The page recently got SSL certs verified by GeoTrust. The image is on ...
1
vote
4answers
476 views

How can these spam emails be accessing email accounts on respected domains?

Today I received a spam email from juliew@mchs.org.au requesting to contact Harry Black about a charity project. His email address is harryblack2013@rogers.com. After I had done so and fallen for the ...
1
vote
2answers
2k views

SSH Access using private keys

I am trying to practice ethical hacking in my own lab. I have got limited shell in a fedora box in addition I am able to read root files like /etc/shadow trough another vulnerability. Now, I need to ...
1
vote
4answers
350 views

Spam title includes unusual words from my recent emails

Occasionally, I get spam that includes in the subject line an unusual name or word that appears in other (legitimate) messages I recently received. Perhaps a coincidence, I thought, until it happened ...
1
vote
3answers
7k views

Does rooting an Android Phone make it Vulnerable? [closed]

If android os in a device is rooted , will it be safe to use it in public networks where possibilities of attacks is more.
1
vote
3answers
505 views

Is Password Complexity required at all

For a web-site I'm using what I hope is the most secure password storage scheme I can find, which boils down to having a salt and hashed password stored in a database of contacts:- Byte[] ...
1
vote
1answer
212 views

The basics of cryptanalysis [closed]

There are a lot of books on encryption. Is there a must read intro, something like Smashing the Stack for Fun and for profit, that more or less everyone reads?
1
vote
4answers
1k views

A DOM-based XSS is a vulnerability in the application or in the browser?

As the exploit isn't sent to the server (using #payload), can I say that a DOM XSS is a vulnerability in the browser rather than the web application?
1
vote
1answer
2k views

How to secure database table of users for an application?

I am working on a Windows application that utilizes a MySQL database for its user authentication and data storage. Within the application, the highest level of user (Administrator) can create and ...
1
vote
4answers
160 views

Is connection to keyserver encrypted?

When you retrieve someone's information from a keyserver to add him to your pgp keyring, that is made through unencrypted keyservers, unless the user uploaded it to https://keyserver.pgp.com/. Even ...
1
vote
2answers
108 views

How can I set up signed downloads?

Scenario I have a web server that authenticates and redirects from HTTP to HTTPS. Clients can then view available "downloads" in their account. I want to be able to sign these download links - as in, ...
1
vote
3answers
466 views

Is physical tape backup better than disk to ensure integrity

When assessing tape backups vs online disc backups, which of them ensure better protection from integrity incidents. For example, if the system is compromised by attacker or virus or malware and I ...
1
vote
1answer
3k views

Retrieving saved password from Firefox on Linux [closed]

I know there are ways to get the cookies from browsers in Windows and retrieve and decrypt saved passwords from them. Is there a similar way to do so on CentOS?
1
vote
1answer
231 views

Any recipient can modify an order confirmation mail, right? Does this ever matter ?

I have boldly stated that there is no way to 'write protect' an e-mail, but want to be sure of my ground. Surely if Joe Bloggs receives an e-mail from me (or my e-commerce site or a web application ...
1
vote
3answers
26k views

Multiple running instances of rundll32.exe

I've noticed that in the Task Manager of Windows 7, I have multiple running instances (2) of rundll32.exe. Does this necessarily means that my machine is infected by a malware as noted here: ...
1
vote
3answers
347 views

What is the first step in auditing the security efficiency of a simple website?

I am asked to write a first technical audit about the security best practices to improve a PHP web-site security. I am wondering from where to start? Is there a famous audit forms to analyze and ...
1
vote
2answers
932 views

BLP Lattice structure with missing top and bottom levels

I designed a system similar to the above diagram. However There is no (Top Secret, {nuclear,crypto}) and no (Secret,{}) levels. Meaning that there is no top and bottom level. Would it make the BLP ...
1
vote
2answers
1k views

Running Apache as system service on Windows 2003 R2 64-bit

Trying to make my point, that running Apache with PHP5 module as Windows service is not secure. All I got to prove it - FTP access to some internal website. So what I did - I uploaded file test.php ...
1
vote
3answers
2k views

How to exploit DRUPAL-SA-CORE-2012-003

I have read the security notices and understand that it "would allow an attacker to reinstall an existing Drupal site with an external database server and then execute custom PHP code". According to ...
1
vote
2answers
429 views

Seeking advice on how to build a box to brute force hashes? [closed]

I work in a startup security firm, and I need to build a GPU-based to brute force password/hashes, which can be used to validate password strength and test hashing algorithms. I expect some high ...
1
vote
2answers
306 views

How does google docs know password for published googledocs document on a public site?

Google Docs documents can be published on public sites. How does Google know the password to use (to get the document) when all you specify in the HTML is a string like: ...
1
vote
3answers
561 views

Client side scripts through proxies

If you're trying to hide your IP address using VPN/proxies can a website using client side scripting record your real ip? If yes is there any alternative to blocking all scripts as that breaks ...
1
vote
3answers
726 views

Login System Security Suggestions

I am creating a login system and was wondering if anybody had any suggestions. Here is my current setup: nonce to check if the login originated from our login form session and cookie auth mixed - in ...
1
vote
1answer
260 views

Limiting database security

A number of texts signify that the most important aspects offered by a DBMS are availability, integrity, and secrecy. As part of a homework assignment I have been tasked with mentioning attacks which ...
1
vote
3answers
1k views

Is it possible to use same certificate on several machines by exporting it?

My bank proposes certificate. They say I will be able to use it only on one computer. I don't understand: can't I use same certificate on several machines by exporting and reimporting it ?
1
vote
2answers
289 views

Which MTA don't have antivirus check for outbound emails? [closed]

I need to test whether MTA has antivirus check for inbound emails. To check this I need to send email with e.g. EICAR testfile from another MTA to this one. However, Gmail, Yahoo and other well-known ...
1
vote
2answers
42k views

WiFi WPA cracking with Reaver [closed]

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. ...
1
vote
2answers
2k views

header injection + codeigniter

I'm reading through Mozilla's Secure Coding Guidelines, and found this statement: Don't trust any user data (input, headers, cookies etc). Validate it before using it I'm using the codeigniter ...
1
vote
1answer
120 views

valid intermediate certs not in browser

Say an X.509 cert is signed by an intermediate cert that's not in your browser. Maybe the root certificate is but not the intermediate cert. At that point it seems like a valid certification path ...
1
vote
2answers
247 views

Why the servers stores hashed password instead of relaying on private/public key

I understand why the SSL client certificates are not widely used (need to install them, problems with shared machines etc.). On the other hand when I log into the server the password is send to it and ...
1
vote
3answers
187 views

How to reverse the communication for security

I have the following use case - There are two networks - internal network where the application server is deployed and has no internet access and external network that is accessible from internet but ...
1
vote
2answers
3k views

Find the hack in the Apache2 logs?

The hack was a failure, as they were not able to put the created page as the home page. But we found recently a manipulated page on our website (via the rss). So I looked in the Apache2 logs and ...
1
vote
3answers
644 views

Install my own proxy

My school network has blocked a lot of webpages, including TeamViewer, which I need. The IT department told me to find a proxy, because it was their ISP who had blocked the sites. To connect to the ...
1
vote
2answers
925 views

How to react on a message about a pending account ban on Facebook? [closed]

Are you getting this message on chat? LAST WARNING : Your account is reported to have violated the policies that are considered annoying or insulting Facebook users. Until we system will disable ...
1
vote
3answers
1k views

Java vulnerability applicability

On a server running Java, can a JRE vulnerability be exploited even in cases where the named subcomponent is not used by the application? See CVE-2011-3545, for which the vulnerable subcomponent is ...
1
vote
3answers
2k views

What devices support the permanent addition of an ARP table entry? What tools are available to manage this?

I would like to improve wireless security and certain other on-net security scenarios with a permanent ARP table entry. The idea being that someone on the same subnet or WiFi network will have a more ...
1
vote
4answers
242 views

Learning the role of intruder legally [duplicate]

Possible Duplicate: How can you become a competent web application security expert without breaking the law? I was reading this article earlier U.S. government hankers for hackers , and ...
1
vote
4answers
5k views

How To - Learn basic hacking skills? [closed]

I'm interested in learning some basic hacking; and I've read online that Linux is a good place to start. Although, I've been a Windows user for as long as I can remember. So I was hoping I could get a ...

15 30 50 per page