Monday, 5 June 2023

ADVANTAGE OF ETHICAL HACKING

Advantage of Ethical Hacking

Hacking is quite useful in the following purpose-

1-To recover lost information, especially in case you lost your password.

2-To perform penetration testing to strengthen computer and network security.

3-To put adequate preventative measure in place to prevent security breaches.

4-To have a computer system that prevents malicious hackers from gaining access.

5-Fighting against terrorism and national security breaches.


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ASIS CTF Quals 2015 - Sawthis Writeup - Srand Remote Prediction


The remote service ask for a name, if you send more than 64 bytes, a memory leak happens.
The buffer next to the name's is the first random value used to init the srand()


If we get this value, and set our local srand([leaked] ^ [luckyNumber]) we will be able to predict the following randoms and win the game, but we have to see few details more ;)

The function used to read the input until the byte \n appears, but also up to 64 bytes, if we trigger this second condition there is not 0x00 and the print shows the random buffer :)

The nickname buffer:



The seed buffer:



So here it is clear, but let's see that the random values are computed with several gpu instructions which are decompiled incorrectly:







We tried to predict the random and aply the gpu divisions without luck :(



There was a missing detail in this predcitor, but there are always other creative ways to do the things.
We use the local software as a predictor, we inject the leaked seed on the local binary of the remote server and got a perfect syncronization, predicting the remote random values:




The process is a bit ugly becouse we combined automated process of leak exctraction and socket interactive mode, with the manual gdb macro.




The macro:



















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Sunday, 4 June 2023

CEH: 10 Hacking Tools For Hackers


There are a lot of hacking tools available over the internet but mostly we need some of them. In this blog you'll learn about hacking tools which are typically used in the world of hacking by penetration testers.

SmartWhois

SmartWhois is an information-gathering program that allows you to find all available information about an IP address, hostname, or domain, including country, state or province, city, name of the network provider, administrator, and technical support contact information. SmartWhois is a graphical version of the basic Whois program.

SocksChain

SocksChain is a tool that gives a hacker the ability to attack through a chain of proxy servers. The main purpose of doing this is to hide the hacker's real IP address and therefore minimize the chance of detection. When a hacker works through several proxy servers in series, it's much harder to locate the hacker. Tracking the attacker's IP address through the logs of several proxy servers is complex and tedious work. If one of the proxy servers' log files is lost or incomplete, the chain is broken, and the hacker's IP address remains anonymous.

NeoTrace, VisualRoute, and VisualLookout

NeoTrace, VisualRoute, and VisualLookout are all packet-tracking tools with a GUI or visual interface. They plot the path the packets travel on a map and can visually identify the locations of routers and other internet working devices. These tools operate similarly to traceroute and perform the same information gathering; however, they provide a visual representation of the results.

Visualware's eMailTrackerPro

Visualware's eMailTrackerPro ( www.emailtrackerpro.com/ ) and MailTracking ( http://mailtracking.com/ ) are tools that allow an ethical hacker to track email messages. When you use these tools to send an email, forward an email, reply to an email, or modify an email, the resulting actions and tracks of the original email are logged. The sender is notified of all actions performed on the tracked email by an automatically generated email.

IPEye

IPEye is a TCP port scanner that can do SYN, FIN, Null, and XMAS scans. It's a command line tool.
IPEye probes the ports on a target system and responds with closed, reject, drop, or open. Closed means there is a computer on the other end, but it doesn't listen at the port. Reject means a firewall is rejecting the connection to the port (sending a reset back). Drop means a firewall is dropping everything to the port, or there is no computer on the other end. Open means some kind of service is listening at the port. These responses help a hacker identify what type of system is responding.

IPSecScan

IPSecScan is a tool that can scan either a single IP address or a range of addresses looking for systems that are IPSec enabled that means the system has IPSec enabled while disabled means that it either has IPSec disabled, the compatibility issue or the configuration issue that not reveal to you that it has IPSec enabled. Indeterminable means that the scanner isn't sure if IPSec is enabled or disabled.

Icmpenum

Icmpenum uses not only ICMP Echo packets to probe networks, but also ICMP Timestamp and ICMP Information packets. Furthermore, it supports spoofing and sniffing for reply packets. Icmpenum is great for scanning networks when the firewall blocks ICMP Echo packets but fails to block Timestamp or Information packets.

SNMP Scanner

SNMP Scanner allows you to scan a range or list of hosts performing ping, DNS, and Simple Network Management Protocol (SNMP) queries. This tool helps you to find out the current information about the device of SNMP nodes in the given network.

hping2 tool

The hping2 tool is notable because it contains a host of other features besides OS fingerprinting such as TCP, User Datagram Protocol (UDP), ICMP, and raw-IP ping protocols, traceroute mode, and the ability to send files between the source and target system.

THC-Scan, PhoneSweep, and TeleSweep

THC-Scan, PhoneSweep, and TeleSweep are tools that identify phone numbers and can dial a target to make a connection with a computer modem. These tools generally work by using a predetermined list of common usernames and passwords in an attempt to gain access to the system. Most remote-access dial-in connections aren't secured with a password or use very rudimentary security.
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OWASP Announcement

🕬  OWASP Announcement:


The OWASP Foundation has been chosen to be 1 of 50 Open Source Organizations to participate in the inaugural year of the Google Season of Docs program.

The goal of Season of Docs is to provide a framework for technical writers and open source projects to work together towards the common goal of improving an open source project's documentation. For technical writers who are new to open source, the program provides an opportunity to gain experience in contributing to open source projects. For technical writers who're already working in open source, the program provides a potentially new way of working together. Season of Docs also gives open source projects an opportunity to engage more of the technical writing community.

We would like to thank the OWASP members that donate their time and knowledge as administrators and mentors. It would not be possible if not for these individuals:
Spyros, Fabio, and Konstantinos 




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