3
votes
2answers
388 views

Does glibc2 version of the crypt function still use DES for alternative hashing methods?

I'm trying to understand how typical Linux distributions generate the password field for entries in /etc/shadow. I can't figure out what encryption algorithm is being used to produce the encrypted ...
68
votes
7answers
17k views

Touch Screen Password Guessing by Fingerprint Trace

After eating some garlic bread at a friend's who is not security-aware, she managed to quickly determine the PIN code to unlock the screen of my Samsung SIII. She figured this out by simply holding ...
2
votes
2answers
229 views

Shared vs unique credentials for remote support vendor accounts

I have a situation where my employer has a support contract with a vendor for an application we use. This application runs on a (Windows 2008 R2) server that does not store or have access to any ...
-1
votes
1answer
88 views

How to secure a script that generates an HTML file from other websites?

I have a ksh script (Korn Shell Script) that generates a static HTML file from websites. How can I ensure that the output HTML file will not contain any bad <script>'s (bad JavaScript)? It's OK ...
5
votes
2answers
486 views

Vim Modeline Vulnerabilities

I use vim and have a use case for modelines. A modeline means that vim will parse a textfile for lines like: # vim: set someoption=somevalue and will then set those options. This is awesome if ...
10
votes
2answers
911 views

Plain Text Password Reset Vulnerability

If I receive an email with a plain text generated password (in response to a password reset request), is this a vulnerability? The password expires after one use, in other words the user has to change ...
-3
votes
1answer
198 views

w3af plugin development example [closed]

I'm new to w3af, and I would like to build my own plugin. I have searched on w3af web and googled it for some examples but no luck... Can anyone give me an example how to start building plugins or ...
20
votes
6answers
4k views

Malicious Links that Respond to Browsers but not curl or wget

There are some emails with links to people's cracked websites with a malware download Like this kind of email: fake DHL pack station email ... the links often take the form of: http:// ...
-7
votes
1answer
2k views

Hack a LAN with low security [closed]

In our university users have to use VPN to connect to internet.But for local works(like login to university website,checking their university accounts) VPN is not needed.And as I know we have ...
11
votes
2answers
3k views

Session Cookie Stealing Protection

I am looking at how to secure a web site against getting its session cookie stolen. These are the controls that I know are widely known/used: HTTPS Everywhere Only use a securely created random ...
1
vote
1answer
85 views

Password Verification Server

I posted a question here... Protecting Password Hashes with Store Procedures? ...where I asked about denying a website's database user CRUD access to the tables that store password hashes except ...
1
vote
1answer
14k views

Unsolicited Password Request from Facebook

Today I have received 3 emails to my three different addresses, one with Google, one with MSN, and one with my company. All emails were sent from password+kjdmiikvhppi at facebookmail.com email ...
5
votes
3answers
3k views

Designing a Sandbox for Windows

I am thinking about the design for a sandbox, which is able to execute arbitrary unmodified, untrusted binaries. The goal is to implement an application Unlike something like e.g. Google Chrome's ...
21
votes
2answers
3k views

Is it possible to write shellcode in C++?

Usually I write assembly programs and then dump their contents to get the shellcode. What I was wondering is whether I could write a C++ program instead of assembly, then dump and use that instead of ...
0
votes
3answers
408 views

What does the question mark in nmap output indicate?

In the following nmap output: $ sudo nmap -sS -sV -vv -n -Pn -T5 x.x.x.1-255 -p80,23,21 -oG - | grep 'open' Host: x.x.x.x () Ports: 21/closed/tcp//ftp///, 23/open/tcp//telnet?///, ...
4
votes
2answers
642 views

How can I find the malicious/backdoor codes without knowing the last modified date?

Last night my website got hacked and attacker edited the main index.php. I was wondering even he edited that file, the last modified date did not change. so I just worry if he would put the backdoor ...
1
vote
1answer
3k views

Certificate authentication with jQuery's ajax() function

I need to sync with my server with the client certificate abc.pfx which is generated by the server using Ajax. How do I send my certificate with Ajax object. Can I do this certificate authentication ...
4
votes
4answers
4k views

Block unauthorized user from getting access to intranet

What's the common way to block users from accessing intranet? Right now, whoever plugs in a cable can access any intranet server freely. I want to change this behavior. But given that we run not only ...
0
votes
2answers
481 views

Tools to extract code comments from sites? [closed]

I often come across sites that have way to many comments included in their source code, sometimes these comments offer valuable insight into whats happening in the code, the logic of functions, unused ...
7
votes
1answer
2k views

How can I spoof the Mimetype of a file upload?

There are posts that says php mimetype isn't secure, or can be bypassed. How do people spoof the mimetype?
10
votes
5answers
1k views

Data needed for why not to load third party JavaScript on web page with credit card form

My company makes a JavaScript widget that e-commerce sites can embed on their pages. Our current instructions to our customers tell them to load our JS on every page of their site and most follow this ...
4
votes
2answers
2k views

Security test lab setup [closed]

I want to setup a testing lab in my basement for penetration/vulnerability testing & offensive/defensive security skills. I believe I have all the equipment that I need, and if I'll need something ...
5
votes
3answers
521 views

Are CSRF Attacks Really Blind

I'm new to CSRF attacks but don't see how they are always blind. Let's say we are dealing with a site where the asset we need to protect is the HTTP response. Something like one's medical history. ...
4
votes
1answer
664 views

Nessus HTML5 version 5.0.3 - PCI Scan

I've been searching for a couple days, even contacting support, to find out if Nessus has a bundle that scans for PCI compliance. It selects all 44 categories and regardless of what kind of scan I ...
0
votes
1answer
557 views

Wireshark Decode HTTPS Root Certificate

I'm currently dealing with a "Sniffy" java application. Well I can see it connecting to some kind of server using HTTPS. I would like to see what its sending or getting over HTTPS. i have read some ...
0
votes
2answers
678 views

Bruteforce Passphrase of Dictionary Words

Consider the all lowercase passphrase: "lazy fox haggles treaty" Assume all four words are in a dictionary of 2000. Bruteforcing word combinations, how long does it take to crack this password at ...
4
votes
2answers
225 views

Source where you can find if a CVE has a patch or not

I'm wondering if there is a source available which has a list of CVE numbers and shows whether they have been patched or not (and maybe a link to a relevant patch). I know Secunia has something like ...
0
votes
1answer
699 views

Securing my firewall (both dedicated and iptables-based) [closed]

I have an ASA-5510, but I also intend to maintain strict IP tables on my server (Ubuntu 12.04.2), so that there are two layers of "protection". My iptables look like this: *filter # Allows all ...
-3
votes
3answers
2k views

Database connection from front end

I want to know why calling a database from the front end is considered a bad practice for security. It is really so bad as to justify building an application layer with all its drawbacks: costs, ...
3
votes
5answers
3k views

How secure are iPhone/Android/Windows 8 “PIN”/Pattern Lock features?

Most modern (and tablet-oriented) operating systems now offer alternative ways of logging on other than a strong password. For example, iPhones offer a 4-digit PIN, Android devices offer this and a ...
-1
votes
3answers
260 views

Salting in encryption (rather than hashing)

I am aware of the benefits of adding a salt to values that are hashed using a one-way function. Is adding a salt to a value that is being encrypted (using symmetric encryption) considered to be good ...
7
votes
3answers
3k views

What kind of attack was this?

So our website was hacked, and these are the things that were done: Some entries in the database were changed. I don't know if this was via SQL injection, or direct database access (only root is ...
11
votes
5answers
3k views

CSRF protection with Session Id

To protect against CSRF, couldn't my page javascript just dynamically insert the session id from the cookie into the body of each HTTP request right before it's sent? The server would then just ...
11
votes
5answers
10k views

Does IPSec use IKE or ISAKMP?

Does the IPSec protocol suite use IKE or ISAKMP? RFC 2828 states ISAKMP is the protocol used in IPSec to handle SAs, key management and system authentication. Other sources say IKE is the protocol ...
41
votes
7answers
10k views

Why isn't open WiFi encrypted?

As far as I understand, WiFi networks that require no password send traffic through the air unencrypted. Those that require a password encrypt each connection uniquely, even if they're all using the ...
2
votes
3answers
14k views

How can I send and receive untraceable emails? [duplicate]

I have been receiving threatening emails from someone, and I don't want them to know my location for my safety's sake, but I need to send them a "Cease and Desist" notice. This person has great ...
4
votes
3answers
707 views

Virus with PGP Encryption Preventing Virus Scan

A user reported having a virus that was causing pop up windows asking for money. When he turned on his laptop and logged into PGP encryption (whole disk) the desktop quickly showed but then a white ...
-2
votes
1answer
1k views

Cascading Encryption Algorithm using mcrypt or GnuGP

I'm trying to a cascading cipher encryption algorithm to encrypt a textfile via mcrypt. I'm essentially trying to emulate the behavior of TrueCrypt, where it can cascade two or three different cipher ...
4
votes
3answers
2k views

Multiple SSL connections in a single HTTPS web request

I set up Apache2 with SSL and tried to request the default Apache2 web page ("It works!") using https://[IP_ADDRESS]. The Chrome developer tool shows that only one HTTP connection is established, ...
27
votes
2answers
1k views

Does versioning an encrypted file make it less secure?

Suppose I use KeePassX as a password manager, and I store the kdb file in Sparkleshare folder as a way for backing up and syncing with multiple devices. The kdb file in itself would be encrypted, but ...
6
votes
5answers
8k views

Obfuscating JavaScript code

Some Flash developers are afraid of JavaScript. Their point of view: Stealing JS source code is effortless, one would just 'view source' and copy it. Yes, you can decompile Flash bytecode, however it ...
2
votes
1answer
208 views

Making undeterminable containers inside existing file system

Suppose, I have 1 disk partition (previously filled with random data) and create some file system on it (NTFS, FAT, EXT2, etc). I am going to keep some files here (i.e. visible files). Then i create ...
44
votes
11answers
39k views

Are password-protected ZIP files secure?

Following my answer. If I can list contents of password-protected ZIP file, check the file types of each stored file and even replace it with another one, without actually knowing the password, then ...
-3
votes
1answer
853 views

Web GUI for Snort + ModSecurity [closed]

I'm trying to find a suitable (or easily modifiable) web GUI for snort + modsecurity logs. As far as I know, Splunk can do that by installing the snort and modsecurity plugins. Is there any other ...
19
votes
2answers
2k views

Homomorphic encryption used for e-voting?

I was reading wikipedia about homomorphic encryptions, and one part got me a bit confused: "The homomorphic property of various cryptosystems can be used to create secure voting systems, ..." ...
-11
votes
1answer
13k views

How are IP addresses traced? [closed]

Let say I have done something harmful to some computer. I am on wifi at my hostel, so for that session I have some IP assigned. Now, since tomorrow I will connect again to wifi and get a new IP ...
2
votes
3answers
1k views

sql injection, exec and preg_replace filter

Ive been informed this is not safe to use in regards to sql injection: preg_replace("/[\"'%()@$.!&?_: #\/-]/","", mysql_real_escape_string($_GET['var'])); what would be the difference in the ...
1
vote
1answer
269 views

Can particular object be detected and extracted from RAM? [closed]

I was Googling for a while now, and I don't seem to find what I am looking for. Imagine I have a programm running (for example some random image generator, perhaps captcha) and I have a background ...
5
votes
1answer
215 views

User Account Control and outside processes

I was using TeamViewer (a remote desktop client) to log in to a remote computer running Windows 7. While logged in, the Java updater prompted me for administrator access to run an update check. Out ...
5
votes
3answers
524 views

What are some signs that a certain degree in information security will be a quality one?

I have been searching frantically for a college that has a good information security program. One of the ones I came across is Wilmington Universities Computer and Network Security program. I got a ...

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