Sunday, May 25, 2014

Ebay User Database Hacked - Request All Users to Change Their Passwords

Dear eBay Member,


To help ensure customers' trust and security on eBay, I am asking all eBay users to change their passwords.


Here's why: Recently, our company discovered a cyberattack on our corporate information network. This attack compromised a database containing eBay user passwords.


What's important for you to know: We have no evidence that your financial information was accessed or compromised. And your password was encrypted.


What I ask of you:
Go to eBay and change your password. If you changed your password on May 21 or later, we do not need you to take any additional action at this time.


Changing your password may be inconvenient. I realize that. We are doing everything we can to protect your data and changing your password is an extra precautionary step, in addition to the other security measures we have in place.


If you have only visited eBay as a guest user, we do not have a password on file.


If you used the same eBay password on any other site, I encourage you to change your password on those sites too. And if you are a PayPal user, we have no evidence that this attack affected your PayPal account or any PayPal financial information, which is encrypted and stored on a separate secure network.


Here are other steps we are taking:
  • As always, we have strong protections in place for both buyers and sellers in the event of any unauthorized activity on your account.
  • We are applying additional security to protect our customers.
  • We are working with law enforcement and leading security experts to aggressively investigate the matter.


Here's what we know: This attack occurred between late February and early March and resulted in unauthorized access to a database of eBay users that includes customers' name, encrypted password, email address, physical address, phone number and date of birth.


However, the file did not contain financial information. And, after conducting extensive testing and analysis of our systems, we have no evidence that any customer financial or credit card information was involved. We also have no indication of a significant spike in fraudulent activity on our site.


We apologize for any inconvenience or concern that this situation may cause you. As a global marketplace, nothing is more important to eBay than the security and trust of our customers. We know our customers have high expectations of us, and we are committed to ensuring a safe and secure online experience for you on any connected device.


Devin Wenig Signature
Devin Wenig
President, eBay Marketplaces

Thursday, May 22, 2014

Kali is Vulnerable to Heartbleed - How to Upgrade OpenSSL for Kali Linux

Kali Linux uses a version of OpenSSL that is vulnerable to the heartbleed attack. Your ram could be dumped as you use a terminal tool to connect to a malicious server.

Kali hasn't updated their repositories to include the updated version of OpenSSL yet, so I will walk you through the process of installing the updated version.




OpenSSL 1.0.1g download:
http://www.openssl.org/source/openssl-1.0.1g.tar.gz
tar xzf openssl-1.0.1g.tar.gz

Terminal Commands:
openssl version
cd openssl-1.0.1g
./config --prefix=/usr --openssldir=/etc/ssl
make

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Sunday, May 18, 2014

Take down websites and servers from 1 computer - Slowloris DOS Tutorial


In this video I show you how to get and use Slowloris to DOS (Denial of Service) websites and servers from a single computer or even a smartphone. This is a very simple attack to use and it can be ran through Tor or other proxies as it doesn't require very much bandwidth at all.

This video also walks you through how to setup an Apache server in Kali Linux to test the attack on.

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Friday, May 16, 2014

Mac OS X 10.9.3 Update Bug - Fix Missing User Directory in Finder and Apps



A bug with the recent OS X 10.9.3 update causes the Users folder to no longer be available in Finder and some apps. There are a few ways to fix this, but the simplest one that persists after reboot is to create an AppleScript and have it load on login.

AppleScript:
tell application "Terminal"
    do shell script "chflags nohidden /Users" password "yourLoginPassword" with administrator privileges
end tell
This video will walk you through a couple fixes including a very simple fix that will work after you reboot.



The more complicated fix that I briefly showed in the video is to:


start your computer with Alt + CMD + P + R in order to do a PRAM reset.
Then start your computer with CMD + R for recovery partition boot
Launch Disk Utility and repair permissions. Quit Disk Utility and open Terminal (Utilities -> Terminal) and type :
cd /Volumes/Macintosh\ HD (or the name of your partition)
chmod 755 Users
chmod 755 Users/Shared
chflags nohidden Users
chflags nohidden Users/Shared

A method I don't recommend for now.

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