Box hacker10/3/2023 ![]() ![]() ![]() Now that we have a little bit more information on that vulnerability, let's try to exploit it! Step 3 - Exploiting MS08-067 Let's also have a look at Microsoft Security Bulletin on MS08-067 The 10th out-of-band patch released by Microsoft is outlined in the MS08-067 security bulletin From the implementation of Patch-Tuesday (November, 2003) until December, 2008 Microsoft released a total of 10 patches that were not release on a Patch-Tuesday also known as “out-of-band” patches. This effort has become known as Patch-Tuesday. By releasing its patches on the second Tuesday of every month Microsoft hoped to address issues that were the result of patches being release in a non uniform fashion. This is an excerpt from rapid7 blog In November of 2003 Microsoft standardized its patch release cycle. Let's first understand how patching works in Microsoft and where this naming convention is coming from. We can see that there is a vulnerability, smb-vuln-ms08-067, where Microsoft Windows system is vulnerable to remote code execution. script vuln : Check for specific known vulnerabilities and generally only report results if they are found I use the following command nmap -p 445 -script vuln 10.10.10.4Ĥ45 : The open port we've discovered earlier Still on Zenmap, we look for any known vulnerabilities ![]() Step 2 - Understanding exploitable vulnerability MS08-067 Let's do some research to see what we can find. Microsoft-DS (Directory Services) SMB file sharing If you find the results a little bit too overwhelming, you can move to the Ports/Hosts tab to only get the open ports The only difference is the addition of the flag -T4 nmap -sV -T4 -O -F -version-light 10.10.10.4 I use almost the same set of commands to perform a quick scan plus. It is a multi-platform, free and open source application which aims to make Nmap easy for beginners to use while providing advanced features for experienced Nmap users. You can also use Zenmap, which is the official Nmap Security Scanner GUI. version-light: Limit to most likely probes (intensity 2)ġ0.10.10.4 : IP address of the Legacy box F: Fast mode - Scan fewer ports than the default scan sV: Probe open ports to determine service/version info I use the following command to get a basic idea of what we are scanning nmap -sV -O -F -version-light 10.10.10.4 If you want to learn more about it, you can have a look at the documentation here There are many commands you can use with this tool to scan the network. It uses raw IP packets to determine what hosts are available on the network, what services those hosts are offering, what operating systems they are running, what type of packet filters/firewalls are in use, and dozens of other characteristics. Nmap is a free and open source utility for network discovery and security auditing. It is always better to spend more time on that phase to get as much information as you could. This is one of the most important parts as it will determine what you can try to exploit afterwards. The first step before exploiting a machine is to do a little bit of scanning and reconnaissance. We will use the following tools to pawn the box on a Kali Linux box Legacy is the second machine published on Hack The Box and is for beginners, requiring only one exploit to obtain root access. Only write-ups of retired HTB machines are allowed. Some of them simulating real world scenarios and some of them leaning more towards a CTF style of challenge. It contains several challenges that are constantly updated. Hack The Box (HTB) is an online platform allowing you to test your penetration testing skills. ![]()
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