Metasploit Exploitation
Armanda Kicks
I am currently attempting Blue and it seems to successfully establish connection and send the payload (ETERNALBLUE overwrite completed successfully). But instead of a WIN I get a FAIL, and it restarts the process twice more. My process for debugging has been:
I uninstalled metasploit ( sudo apt-get remove --auto-remove metasploit-framework ) and then re-installed the new build from their github repo. Installed it in my /opt folder and then installed all the dependencies (a bunch of ruby gems that will probably need some manual dpkg installs themselves) and now it works.
I ran into this problem just now on Lame as well and was able to figure it out. My guess is the actual exploit itself has changed since the walkthroughs were written, or else maybe my metasploit somehow was different.
Hey I just want to say thank you for the help. I was having the same issue with Metasploit as the members above, in that it was not giving me a session. I had to change the payload and it worked perfectly. I was working on Blunder for 3 days and could not figure out what I was doing wrong. Thanks for tip of changing the Payload.
I am having a similar issue with Lame. Everyone keeps saying make sure to set the payload within the exploit which I keep trying to do, there are quite a few meterpreter payloads and ive tried most of the Linux meterpreter payloads but it is not letting me set it as there is a some sort of error I get when I try to set it.
this you it helped me, the error was that I was configuring LHOST with my wlan0 ip instead of the ip that the vpn assigned me (in my case was tun1). Once i changed the parameter i was able to use the reverse_tcp without problem
Then go back into the extracted folder and use this command to get all the gems for metasploit: bundle install
**Keep in mind you might have to do bundle install a few times later on so make sure you go into the metasploit extracted folder before you do bundle install
Nice. I thought about doing this and may still downgrade. I found another way around my problem using a different problem but still a bit worried about the transition between python2/msf5 and python3/msf6 as someone new trying to follow tutorials
Hello,
Does GVM 20 work with metasploit 6?
How can I import a scan report to metasploit 6.
If anyone can point me in the right direction that would be greatly appreciated.
Also can anyone recommend any other exploitation applications which work with GVM 20.
An exploit is designed to take advantage of a flaw or vulnerability in a computer system. To explain in other terms, exploitation would be similar to using a lock pick on a door to gain access to a house.
Vulnerabilities within a system lie with poor coding, bugs, or misconfiguration. These are the points where hackers or pentesters try to drive a wedge into so they can gain access to a system. Zero-day exploits are exploits that are created that have not yet had a patch created to mitigate the vulnerability.
Taking the first service from the top I see a version number and the name of the service running. This information is crucial as we can now tailor our search to find more information about the specific version. Searching in Exploit-DB we find that there is already an exploit written and that it is a backdoor that was written into the source download file for vsftp.
Cybersecurity researchers have discovered a new campaign that's exploiting a recently disclosed security flaw in Fortinet FortiClient EMS devices to deliver ScreenConnect and Metasploit Powerfun payloads.
The activity entails the exploitation of CVE-2023-48788 (CVSS score: 9.3), a critical SQL injection flaw that could permit an unauthenticated attacker to execute unauthorized code or commands via specifically crafted requests.
The intrusion, which targeted an unnamed media company that had its vulnerable FortiClient EMS device exposed to the internet, took place shortly after the release of a proof-of-concept (PoC) exploit for the flaw on March 21, 2024.
Also detected were SQL statements designed to download ScreenConnect from a remote domain ("ursketz[.]com") using certutil, which was then installed via msiexec before establishing connections with a command-and-control (C2) server.
There is evidence to suggest that the threat actor behind it has been active since at least 2022, specifically singling out Fortinet appliances and using Vietnamese and German languages in their infrastructure.
"The observed activity clearly has a manual component evidenced by all the failed attempts to download and install tools, as well as the relatively long time taken between attempts," security researcher Sai Molige said.
"This is evidence that this activity is part of a specific campaign, rather than an exploit included in automated cybercriminal botnets. From our observations, it appears that the actors behind this campaign are not mass scanning but choosing target environments that have VPN appliances."
Forescout said the attack shares tactical and infrastructure overlaps with other incidents documented by Palo Alto Networks Unit 42 and Blumira in March 2024 that involve the abuse of CVE-2023-48788 to download ScreenConnect and Atera.
Organizations are recommended to apply patches provided by Fortinet to address potential threats, monitor for suspicious traffic, and use a web application firewall (WAF) to block potentially malicious requests.
Metasploit is an exploit development framework that facilitates penetration testing of IT systems. This tool initially started off as a game and was taken over by Rapid 7 for maintenance and further development. The main objective of this article is to learn the basics of exploitation with Metasploit and then climb the ladder gradually to the advanced level. Metasploit is a ruby driven environment. It allows us to develop exploits in ruby language and integrate them with existing repositories. Ruby language also allows us to use the existing exploits within its file system to carry out an attack. With this in mind, let's brush up the key terms needed for this article.
In the above figure, we used the search command to look for a pattern like "netapi". Once this pattern is located, we executed the "use" command. This command brought us to the local area of the exploit, and we executed the commands with respect to the exploit. Here, we followed with "show options command" to get the required values that need to be input using the "set" command.
In the above screenshot, we observe that the RHOST is set and the payload is a Meterpreter shell. Meterpreter is a module of Metasploit that works on the principle of DLL injection. The bind_tcp module of the Meterpreter shell helps us get shell access to the system and we can run a huge list of Meterpreter commands, which we will explore further in this article.
In this section, I would like to share the details regarding the vulnerability used to exploit the target Windows XP machine that had the most up-to-date service pack installed on it. The code for this vulnerability is ms08_067_netapi. This name indicates that the vulnerability was discovered in the year 2008, and that it is a Microsoft product (in this case a Windows product) in the netapi module. According to Microsoft, this vulnerability in the Windows XP, 2003 based systems, allows the attacker to run malicious codes over the RPC without any authentication. The attack is done on the TCP port 445, which is used for SMB over TCP connections. The above attack is performed assuming that the victim doesn't have any firewall and any antivirus in his system.
What can we do after exploitation? This is the fundamental question asked every time after we compromise a system. Well, the answer depends on the creativity of the attacker. In this case, I would demonstrate the process for stealing credentials of the Windows login after the initial attack.
Stealing login credentials is helpful in the privilege escalation phase when the attacker doesn't have any privilege to carry out "important" post-exploitation steps. Thus, he would try to get all the information regarding the login credentials. This will also help the attacker to update his dictionary of passwords for later attacks. We use the command called "hashdump" to dump all the Windows login hashes into the text file. We have the following screenshot demonstrating the same:
Following this, we have lot of privilege escalation tools like hashcat, John the Ripper of the backtrack machine. In this article, I shall demonstrate John the Ripper tool for cracking these hashes.
In the above screenshot, the hashes are copied to the hash_text.txt file. Then we run the command as shown in the figure to obtain the cracked passwords. We see that these passwords were not salted and thus, easy to crack.
With this short demonstration we have seen how we can escalate privileges on the victim machine. In this part, we have looked at a victim PC that had no firewall protection. In the following section, we'll review how to attack a victim PC when the Windows firewall is switched ON and how to later kill the firewall entirely.