14
votes
4answers
2k views

Looking for example of well-known app using unsalted hashes

Does anyone know of a well-known application that still uses unsalted hashes for password storage? I'm looking for an example for an upcoming lecture on Rainbow Tables, and I think it would add ...
15
votes
4answers
1k views

Web Security Cheatsheet / ToDo list

Can anyone suggest a cheatsheet or ToDo list of web site and application security? A local small business owner prompted a question about web security, basically her company website just got XSS ...
15
votes
6answers
5k views

Lightweight Live Pen-test OS [closed]

Does anyone know of any lightweight OSs that are great for Pen-testing? I would love to have a very lightweight live OS that I can boot off a USB and try some pen-testing against some of my ...
5
votes
2answers
2k views

Can RSA (or any public/private key algorithm) be repeated for large amounts of data?

I'm working on a small security assignment and I was instructed to implement simple encryption/decryption of files using RSA in C#. When attempting to encrypt/decrypt large files, I was informed by ...
14
votes
4answers
374 views

What should I look at in the event of a major vendor suffering compromise with unspecified impact?

The specific example I have in mind here is the breach of RSA in March 2011 where attackers got away with critical information which could be the seed information which is used to generate the ...
6
votes
5answers
813 views

Naming convention based exploits

The book Web Hacking Exposed has a number of instances where the attacker would essentially use patterns in naming conventions to design attacks. Can any one point me to any study on ...
5
votes
2answers
1k views

Generating one-time tokens from API-key?

I have a web-site for which I'm building a Drupal module that allows the users of that Drupal site to navigate to my web-site directly from the Drupal site. I intend to distribute secret API-keys to ...
1
vote
2answers
862 views

Cisco ASA Default Route Issue

We have a test environment which mimics our enterprise network security design. In this test environment my team and I would like to bypass our DMZ entirely. This seems easily enough done by simply ...
16
votes
4answers
3k views

What are the chances to generate the same ssh key?

I could generate ssh keys on the client like (without password): ssh-keygen -b 8192 -t rsa -f /home/THEUSER/.ssh/id_rsa -P '' -v and copy the generated id_rsa.pub to the server: ssh-copy-id -i ...
13
votes
4answers
649 views

what to do after suspected intrusion on hobby webserver

I maintain a server to host my files and a number of websites for hobbies and friends. I just noticed that the site summary being returned in google for one of my domains were all porn related ...
17
votes
4answers
16k views

Does using an http proxy completely hide my real IP address?

If I obscure my IP by going through a free http proxy and visit a page, will that site's admin ever be able to find out my true IP or anything related to my true connection/info?
6
votes
4answers
2k views

Is it possible to make one processor look like another?

(aka) Is it possible to hack CPUID instruction or BIOS to make it show wrong CPU information? Yesterday, I was having a chat with computer sales guy. He is little close to me. During the conversation ...
21
votes
4answers
2k views

Why doesn't the client's web browser need to be PCI compliant?

A hypothetical online store that accepts credit card payment will have to be PCI compliant because it receives (transmit), process and possibly store credit card numbers. But the client's web browser ...
9
votes
5answers
736 views

Can a mobile phone battery contain malware?

It has 3 terminals and is presumably a smart battery. I bought it on ebay recently for $2.74 USD and that included postage from China to Australia. It would normally retail for maybe $40 - $50. The ...
36
votes
9answers
29k views

Can my company see what HTTPS sites I went to?

At work my company uses internet monitoring software (websense). I know if I visit a https ssl-encrypted site (such as https://secure.logmein.com) they can't see what I'm doing on the site since all ...
8
votes
3answers
2k views

Practical non-government uses of Biba, Bell-LaPadula, etc. models

For example, the Biba model is now hanging out in current versions of Windows. Things downloaded from the Internet are tagged as such. Internet (low) stuff can't alter user (medium) stuff which isn't ...
4
votes
2answers
561 views

Has anyone else seen commands embedded in an ICMP echo request?

My IPS recently detected a type 8 ICMP packet (echo request) with an unusual payload. The echo request command a fragment of a command that looked like part of a route add. Here's a PCAP of the ICMP ...
0
votes
1answer
365 views

What is the “Australian Failure”?

In the notes for my Computer Security course, the lecturer refers to the "Australian Failure" on slide 19. I'm assuming he's referring to a well known security system failure, but I can't find what it ...
15
votes
4answers
1k views

Doubling up or cycling encryption algorithms

I've occasionally read the suggestion to enhance security by either doubling up on encryption algorithms (encrypt a message once with one algorithm, then encrypt the ciphertext again with a different ...
6
votes
1answer
5k views

High concentration of UDP traffic, good or bad?

Should a network have a high concentration of UDP traffic compared to TCP traffic bad for a network especially in the context of network security? I'm looking at my organization's network protocol ...
23
votes
6answers
25k views

How to scan a PDF for malware?

Can anyone suggest an automated tool to scan a PDF file to determine whether it might contain malware or other "bad stuff"? Or, alternatively, assigns a risk level to the PDF? I would prefer a free ...
5
votes
3answers
587 views

Does (J-)SOX Forbid the Use of Open Source Software?

With Regard to Sarbanes Oxley and particularly The Japanese version thereof: Is it true that in order to comply with (J-)SOX you must have a support contract - and therefore a responsible party - for ...
29
votes
3answers
4k views

Is there any advantage to splitting a password?

I've been reading about the LANMAN (LM) hash and I'm curious about a particular part of the algorithm. The LM hash is computed as follows: The user’s ASCII password is converted to uppercase. ...
6
votes
3answers
853 views

How to use and create attack graphs

I am trying to learn more about attack graphs and how they can be used. I have read a little bit about them from some simple Google searches and believe that they could be a useful tool for work. I ...
8
votes
1answer
1k views

Moving from a one tier to a two tier Microsoft Certificate Authority hierachy

Right now we have a single Microsoft Enterprise Root CA which issues certificates to our VPN users for two factor authentication. We're planning to extend use of the CA to issue certificates for RDP ...
13
votes
1answer
2k views

Renewing Microsoft Certificate Services Root Certificate

We currently have Microsoft Enterprise Certificate Server installed on a domain member machine which issues 1 year certificates to users for authenticating to VPN. We'd like to start issuing web ...
6
votes
2answers
623 views

Is this a good way to manage Incident-Response

I m trying to find a good way to deal with incidents. For now these are my thoughts: x Join Logs and analyse with splunk (and alert with rsyslog, splunk is too expensive), x ...
3
votes
5answers
190 views

Security Conferences in United Kingdom

I have already read the post of best security conferences, but am not able to find any academic security conferences, even through Microsoft Academic Search. I admit this question is quite localized, ...
8
votes
4answers
7k views

How to detect hosts running in virtual machines with nmap?

I have to determine if a given subnet has virtual hosts. Are there any ideas about what switches to use?
4
votes
2answers
190 views

What is the benefit of combining different web log files with different formats?

What is the benefit of combining different web log files with different formats in terms of web application security? In other words, how does combining iis log file with apache log file help in ...
2
votes
2answers
421 views

What is the correct way to assess and compare Certicom's products to the alternatives?

I'm investigating Certicom's API because they are "free" with the Blackberry implementations, and have come to realize that I have several alternatives for implementing crypto such as BouncyCastle, ...
21
votes
6answers
11k views

What is the difference between a penetration test and a vulnerability assessment?

What is the difference between a penetration test and a vulnerability assessment? Why would you choose one over the other? What deliverables would you expect to receive and how would you rate the ...
4
votes
2answers
2k views

Can a kernel exploit compromise an OpenVZ host?

as openvz runs a a lot of virtual servers. i wonder how kernel-exploits could affect the whole system. would it be possible to break out of a "virtual machine" with a kernel-exploit on openvz??? ...
5
votes
3answers
1k views

Is it possible to have authentication without state

In order to login to most websites you need a username and password which is often stored in a SQL database. You are storing per-user information that can change, this is state. Can you prove that ...
6
votes
3answers
593 views

How can an IPS be fingerprinted?

I'm not trying to solve a current technical problem but I came across this and have been wondering how it's done. Intrusion Prevention Systems are supposed to let all network traffic pass through and ...
14
votes
5answers
2k views

Are there ways to protect the guest kernels at the hypervisor level?

Let's say I have a linux guest running in xen and I want xen to check the integrity of the guest kernel so that I know there aren't any rootkits, or similar, active. Is there a way to accomplish this ...
4
votes
2answers
197 views

What perils are there in allowing user input of parts of an ODBC connect string?

I'm developing an application that allows user to input hostnames, database names, usernames, and passwords for database access. The application will construct a ODBC connect string by filling in the ...
5
votes
3answers
613 views

Web server file sniffing

What is it called when a user tries several attempts to figure out the files and folder structure on a web server? For example, the attacker will run http://example.com/test.jpg to determine if ...
4
votes
2answers
863 views

how unsafe is it for Windows webserver IIS to have domain privileges

Normally in the past, I've managed that the production server only serves http(s) to the internet, and is isolated from it's database by a firewall which only allows database queries to travel. ...
4
votes
3answers
452 views

Are there any serious problems with this technique for generating symmetric keys?

I'm using a technique borrowed out of a book by Bruce Schneier and Niels Ferguson called Practical Cryptography. Basically, it boils down to this: Bob does this: pubk_A = Alice's public key ...
5
votes
3answers
444 views

Is Content Security Policy an approach that is worth to support?

Mozilla Firefox 4.0 supports something called Content Security Policy that disables the interpretation of embedded Java Script. Only external Java Script files that are referenced using a script tag ...
6
votes
1answer
190 views

Wireless auto-join on laptops

Maybe I have the wrong idea but this is a question that has been floating in my head for some time. Whenever you use an iPhone (or a Mac, Apple products seem to be more prone to this because it ...
6
votes
2answers
2k views

With reference to using Gpg4win, which is better: OpenPGP or S/MIME?

Which is better -- OpenPGP or S/MIME for higher security?
7
votes
5answers
2k views

Privacy issues with email providers [closed]

I am looking for an email provider (or for a way to do it myself) that will not divulge my personal information under no circumstances. I found out that getting this information with a order for ...
2
votes
1answer
527 views

Can anyone give me more info on this sketchy url I recently visited, is it an attack site?

My girlfriend was browsing images on google when suddenly her browser redirected to this url: defender-iies.co.cc/scan3/167 The site seemed to be posing as an anti virus, saying your computer is at ...
15
votes
3answers
954 views

Starting with sandbox development

I am looking for some security related project in which I can contribute and also learn something. Since I am new with this stuff It will be better if that project is less complex and digestible for a ...
4
votes
2answers
262 views

What is the correct crypto to use for a “Password Wallet”, where decryption of the secret is needed?

I would like to create a shared "password wallet" where I encrypt several instances of a username/password and store it in a common location. I don't expect all key/value pairs to have the same ...
14
votes
2answers
2k views

How would I implement “Broadcast Encryption”?

I have a stream that I want to encrypt for broadcast to 10,000 subscribers. I know I should encrypt this data using a symmetric key; and also intend that this symmetric key will be rotated every 30 ...
10
votes
6answers
11k views

xp_cmdshell: should it ever be used?

Can 'xp_cmdshell' ever be used safely within a stored proc and are there any situations for which there really is no other option? In other words, should it's useage within a stored proc always be ...
4
votes
2answers
754 views

OpenBSD 32 or 64bit installer?

is the 64 bit or the 32 bit installer better? (not counting that if i have x>4 GByte RAM) - so i mean like is there any ASLR in OpenBSD? ...

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