Archive

Archive for the ‘Server Security’ Category

Using Cookies For Selective DoS and State Detection

August 22nd, 2010 No comments

Using Cookies For Selective DoS and State Detection: “

28 posts left….

This is a continuation of he first post where we described how you can use cookies to DoS certain portions of the website. After our speech one of the Mozilla guys came up to us and described another attack that arises from this. Let’s say when a user logs in it sets a cookie that is 200 bytes long, and when they log out it re-sets the same cookie to 50 bytes. Well if the attacker can set a cookie with a particular path to a single image on the site, for instance, they can use JavaScript to check with an onerror event handler to see if the image has loaded.

Read more…

Using Cookies For Selective DoS

August 22nd, 2010 No comments

Using Cookies For Selective DoS: ” Read more…

blind sql injections

April 19th, 2010 No comments

Google Dork:
inurl:”id=” & intext:”Warning: mysql_fetch_assoc()
inurl:”id=” & intext:”Warning: mysql_fetch_array()
inurl:”id=” & intext:”Warning: mysql_num_rows()
inurl:”id=” & intext:”Warning: session_start()
inurl:”id=” & intext:”Warning: getimagesize()
inurl:”id=” & intext:”Warning: is_writable()
inurl:”id=” & intext:”Warning: getimagesize()
inurl:”id=” & intext:”Warning: Unknown()
inurl:”id=” & intext:”Warning: session_start()
inurl:”id=” & intext:”Warning: mysql_result()
inurl:”id=” & intext:”Warning: pg_exec()
inurl:”id=” & intext:”Warning: mysql_result()
inurl:”id=” & intext:”Warning: mysql_num_rows()
inurl:”id=” & intext:”Warning: mysql_query()
inurl:”id=” & intext:”Warning: array_merge()
inurl:”id=” & intext:”Warning: preg_match()
inurl:”id=” & intext:”Warning: ilesize()
inurl:”id=” & intext:”Warning: filesize()
inurl:”id=” & intext:”Warning: require()

Read more…

Turn your keyboard LEDs into network activity indicators with a free app

December 7th, 2009 No comments

Since we talk about hacking, how about a little desktop/networking hack – how cool is to have your LEDs on keyboards to blink as you transfer data on network :) Try Network Lights and let us know. Windows Only.

Your Password Will Never Get Stolen With the Safelock Keyboard [Microsoft]

October 9th, 2009 No comments

Read more…

15 Steps to Make a Windows 7 Bootable Disk

October 9th, 2009 2 comments

image

Read more…

Computer Network Denial Of Service Denial

October 1st, 2009 No comments

Denial of Service (DoS) and distributed Denial of Service (DDoS) attacks involve an attempt to make a computer resource unavailable to its intended users. This may simply be for malicious purposes as is often the case when big commercial or famous web sites undergo a DDoS attack. However, it is also possible to exploit the system’s response to such an attack to break system firewalls, access virtual private networks, and to access other private resources. A DoS attack can also be used to affect a complete network or even a whole section of the Internet.

Read more…

The Top 10 Web Application security vulnerabilities

September 30th, 2009 No comments

The Top 10 Web Application security vulnerabilities
Read more…

Quick comparison of MyISAM, Infobright, and MonetDB (mysql)

September 30th, 2009 2 comments

Recently I was doing a little work for a client who has MyISAM tables with many columns (the same one Peter wrote about recently). The client’s performance is suffering in part because of the number of columns, which is over 200. The queries are generally pretty simple (sums of columns), but they’re ad-hoc (can access any columns) and it seems tailor-made for a column-oriented database.

Read more…

SQL WHERE Clause Optimization

September 25th, 2009 No comments

Read more…