Archive | July, 2017

CrackMapExec – Active Directory Post-Exploitation Tool

The New Acunetix V12 Engine


CrackMapExec (a.k.a CME) is a post-exploitation tool that helps automate assessing the security of large Active Directory networks. Built with stealth in mind, CME follows the concept of “Living off the Land”: abusing built-in Active Directory features/protocols to achieve its functionality and allowing it to evade most endpoint protection/IDS/IPS solutions.

CrackMapExec - Post-Exploitation Tool

CME makes heavy use of the Impacket library and the PowerSploit Toolkit for working with network protocols and performing a variety of post-exploitation techniques.

Although meant to be used primarily for offensive purposes (e.g. red teams), CME can be used by blue teams as well to assess account privileges, find possible misconfigurations and simulate attack scenarios.


Usage

Example:

You can download CrackMapExec here:

CrackMapExec-v3.1.5.zip

Or read more here.

Posted in: Exploits/Vulnerabilities, Hacking Tools, Windows Hacking

Topic: Exploits/Vulnerabilities, Hacking Tools, Windows Hacking


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EvilAbigail – Automated Evil Maid Attack For Linux

The New Acunetix V12 Engine


EvilAbigail is a Python-based tool that allows you run an automated Evil Maid attack on Linux systems, this is the Initrd encrypted root fs attack. An Evil Maid attack is a type of attack that targets a computer device that has been shut down and left unattended.

EvilAbigail - Automated Evil Maid Attack For Linux

An Evil Maid attack is characterized by the attacker’s ability to physically access the target multiple times without the owner’s knowledge.


Scenarios

  • Laptop left turned off with FDE turned on
  • Attacker boots from USB/CD/Network
  • Script executes and backdoors initrd
  • User returns to laptop, boots as normal
  • Backdoored initrd loads:
    • (Debian/Ubuntu/Kali) .so file into /sbin/init on boot, dropping a shell
    • (Fedora/CentOS) LD_PRELOAD .so into DefaultEnviroment, loaded globally, dropping a shell.

Supported Distros

  • Ubuntu 14.04.3
  • Debian 8.2.0
  • Kali 2.0
  • Fedora 23
  • CentOS 7

You can download EvilAbigail here:

EvilAbigail-master.zip

Or read more here.

Posted in: Exploits/Vulnerabilities, Hacking Tools, Linux Hacking

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All You Need To Know About Cross-Site Request Forgery (CSRF)

Use Netsparker


Cross-Site Request Forgery is a term you’ve properly heard in the context of web security or web hacking, but do you really know what it means? The OWASP definition is as follows:

Cross-Site Request Forgery (CSRF) is an attack that forces an end user to execute unwanted actions on a web application in which they’re currently authenticated. CSRF attacks specifically target state-changing requests, not theft of data, since the attacker has no way to see the response to the forged request.

All You Need To Know About Cross-Site Request Forgery (CSRF)

CSRF is often underrated on the risk spectrum but we’ve actually covered some pretty nasty incidents involving CSRF attacks:

CSRF Vulnerability in Twitter Allows Forced Following
Password Manager Security – LastPass, RoboForm Etc Are Not That Safe
Ubiquiti Wi-Fi Gear Hackable Via 1997 PHP Version

And some tools to help test for CSRF vulnerabilities:

IronWASP – Open Source Web Security Testing Platform
Hcon Security Testing Framework (HconSTF) v0.4 – Fire Base
xssless – An Automated XSS Payload Generator Written In Python

Acunetix has come out with a great article explaining it in more depth and also how you can prevent it, it contains information about:

  • Cross-site Request Forgery in GET requests
  • Cross-site Request Forgery in POST requests
  • Preventing CSRF Vulnerabilities
    • Anti-CSRF tokens
    • Same-site Cookies

For developers, you should pay special attention to the prevention part and make sure whatever you are building is safe.

There are two approaches by which Cross-site Request Forgery (CSRF) may be prevented – synchronizing the Cookie with an anti-CSRF token that has already been provided to the browser, or preventing the browser from sending Cookies to the web application in the first-place.

Check it out in full here: What is Cross-site Request Forgery?

Posted in: Exploits/Vulnerabilities

Topic: Exploits/Vulnerabilities


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CyberChef – Cyber Swiss Army Knife

The New Acunetix V12 Engine


CyberChef is a simple, intuitive web app for carrying out all manner of “cyber” operations within a web browser. These operations include simple encoding like XOR or Base64, more complex encryption like AES, DES and Blowfish, creating binary and hexdumps, compression and decompression of data, calculating hashes and checksums, IPv6 and X.509 parsing, changing character encodings, and much more.

CyberChef - Cyber Swiss Army Knife

The tool is designed to enable both technical and non-technical analysts to manipulate data in complex ways without having to deal with complex tools or algorithms. It was conceived, designed, built and incrementally improved by an analyst in their 10% innovation time over several years. Every effort has been made to structure the code in a readable and extendable format, however it should be noted that the analyst is not a professional developer.


Features

  • Drag and drop
    • Operations can be dragged in and out of the recipe list, or reorganised.
    • Files can be dragged over the input box to load them directly.
  • Auto Bake
    • Whenever you modify the input or the recipe, CyberChef will automatically “bake” for you and produce the output immediately.
    • This can be turned off and operated manually if it is affecting performance (if the input is very large, for instance).
    • If any bake takes longer than 200 milliseconds, auto bake will be switched off automatically to prevent further performance issues.
  • Breakpoints
    • You can set breakpoints on any operation in your recipe to pause execution before running it.
    • You can also step through the recipe one operation at a time to see what the data looks like at each stage.
  • Save and load recipes
    • If you come up with an awesome recipe that you know you’ll want to use again, just click save and add it to your local storage. It’ll be waiting for you next time you visit CyberChef.
    • You can also copy a URL which includes your recipe and input which can be shared with others.
  • Search
    • If you know the name of the operation you want or a word associated with it, start typing it into the search field and any matching operations will immediately be shown.
  • Highlighting
    • When you highlight text in the input or output, the offset and length values will be displayed and, if possible, the corresponding data will be highlighted in the output or input respectively
  • Save to file and load from file
    • You can save the output to a file at any time or load a file by dragging and dropping it into the input field (note that files larger than about 500kb may cause your browser to hang or even crash due to the way that browsers handle large amounts of textual data).
  • CyberChef is entirely client-side
    • It should be noted that none of your input or recipe configuration is ever sent to the CyberChef web server – all processing is carried out within your browser, on your own computer.
    • Due to this feature, CyberChef can be compiled into a single HTML file. You can download this file and drop it into a virtual machine, share it with other people, or use it independently on your desktop.

Browser support

CyberChef is built to support

  • Google Chrome 40+
  • Mozilla Firefox 35+
  • Microsoft Edge 14+

You can find a live demo here: CyberChef

You can download CyberChef here:

CyberChef-v5.12.0.zip

Or read more here.

Posted in: Cryptography, Security Software

Topic: Cryptography, Security Software


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Ghost Phisher – Phishing Attack Tool With GUI

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Ghost Phisher is a Wireless and Ethernet security auditing and phishing attack tool written using the Python Programming Language and the Python Qt GUI library, the program is able to emulate access points and deploy.

Ghost Phisher - Phishing Attack Tool With GUI


The tool comes with a fake DNS server, fake DHCP server, fake HTTP server and also has an integrated area for automatic capture and logging of HTTP form method credentials to a database. It could be used as a honey pot and could be used to service DHCP requests, DNS requests or phishing attacks.

Ghost Phisher Features

  • HTTP Server
  • Inbuilt RFC 1035 DNS Server
  • Inbuilt RFC 2131 DHCP Server
  • Webpage Hosting and Credential Logger (Phishing)
  • Wifi Access point Emulator
  • Session Hijacking (Passive and Ethernet Modes)
  • ARP Cache Poisoning (MITM and DOS Attacks)
  • Penetration using Metasploit Bindings
  • Automatic credential logging using SQlite Database
  • Update Support

Prerequisites

The Program requires the following to run properly:

The following dependencies can be installed using the Debian package installer command on Debian based systems using “apt-get install program” or otherwise downloaded and installed manually.

  • Aircrack-NG
  • Python-Scapy
  • Python Qt4
  • Python
  • Subversion
  • Xterm
  • Metasploit Framework (Optional)

You can download Ghost Phisher here:

ghost-phisher-master.zip

Or you can read more here.

Posted in: Hacking Tools, Phishing

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Another Week Another Mass Domain Hijacking

The New Acunetix V12 Engine


Following shortly after the .io domain cock-up that left thousands vulnerable to domain hijacking, this week more than 750 domains were jacked via registrar Gandi.

Another Week Another Mass Domain Hijacking

Seems like some pretty sloppy administration going on, but that’s how business goes sadly security is still a very much reactive trade. People don’t enable strict controls and audit unless it’s either a) legally mandated or b) sh*t hits the fan.

More than 750 domain names were hijacked through the internet’s own systems, registrar Gandi has admitted.

Late last week, an unknown individual managed to get hold of the company’s login to one of its technical providers, which then connects to no fewer than 27 other top-level domains, including .asia, .au, .ch, .jp and .se.

Using that login, the attacker managed to change the domain details on the official name servers for 751 domains on a range of top-level domains, and redirect them all to a specific website serving up malware.

The changes went unnoticed for four hours until one the registry operators reported the suspicious changes to Gandi. Within an hour, Gandi’s technical team identified the problem, changed all the logins and started reverting the changes made – a process that took three-and-a-half hours, according to the company’s incident report, published this week.


Fortunately, the malicious changes didn’t last too long, somewhere between 8 and 11 hours (as DNS propagation takes time), someone noticed 4 hours after the changes had been made.

I wonder if the attack actually had any effect though and if anyone really installed the malware from the redirected domains, without seeing the real website? I guess it depends on each site demographics and how tech savvy the userbases are.

Taking into account the delay in updating the DNS, the domain names had been hijacked for anywhere between eight and 11 hours, Gandi admits.

Ironically, one website impacted by the attack was Swiss information security company SCRT, which has written a blog post about the hijack of its website. It notes that all of its emails were also redirected during the attack, but fortunately whoever carried out the attack did not set up email servers to grab them.

Gandi meanwhile has reset all its logins and has launched a security audit of its entire infrastructure in an effort to figure out how its logins were stolen.

“We sincerely apologize that this incident occurred,” said its report. “Please be assured that our priority remains on the security of your data and that we will continue to protect your security and privacy in the face of ever-evolving threats.”

It’s one of those things that just happens, and no one is really likely to get punished, everyone is really sorry and well tomorrow business goes on as usual.

Gandi.net is generally thought of as a solid reliable operator so I don’t think this will adversley affect them in the long term.

Source: The Register

Posted in: Exploits/Vulnerabilities, Web Hacking

Topic: Exploits/Vulnerabilities, Web Hacking


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