ssh-mitm
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| ssh-mitm | sftpretty | |
|---|---|---|
| 42 | 1 | |
| 1,219 | 28 | |
| 2.1% | - | |
| 8.8 | 8.5 | |
| 13 days ago | 3 months ago | |
| Python | Python | |
| GNU General Public License v3.0 only | BSD 3-clause "New" or "Revised" License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ssh-mitm
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Terrapin-Attack Style Vulnerability Likely Exploited for 2 Years
I wanted to share some insights into a security concern that echoes the Terrapin-Attack scenario, highlighting a similar vulnerability that has been observed in other tools.
Recently, I came across a Pull Request on GitHub for the SSH-MITM tool, which sheds light on a critical aspect of SSH protocol security, specifically regarding RFC 4253 during the KEXINIT process. The Pull Request, available at GitHub https://github.com/ssh-mitm/ssh-mitm/pull/163, describes the necessity of discarding certain packages during the KEXINIT phase to prevent issues with intercepted clients.
Moreover, a look into the GitHub Blame for SSH-MITM reveals that these crucial changes in the KEXINIT step were integrated into SSH-MITM about 1-2 years ago. You can see the specific changes at this link: https://github.com/ssh-mitm/ssh-mitm/blame/4fc3ef418847c35d17d0c427e2701b33a03c323c/sshmitm/workarounds/transport.py#L178-L188
An important note to add is that this information suggests that a similar form of attack, akin to the Terrapin-Attack, could potentially have been exploited for the last two years. This raises significant concerns about the historical vulnerability of systems to such attack techniques and emphasizes the importance of retroactive security analysis in addition to ongoing vigilance.
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Terrapin Attack for prefix injection in SSH
There is now an issue ticket in ssh-mitm to discuss the similarities between ssh-mitm and terrapin attack: https://github.com/ssh-mitm/ssh-mitm/issues/165
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Check if a publickey is known by GitHub or Gitlab without iterating all users
During some audits, it's likely that you find some ssh public keys laying around on some servers.
If you want to verify if this key is known by other services, but you don't have access to those services, this task might be hard.
SSH-MITM has an additional command, which allows to check if a public ssh key is known by GitHub, GitLab, and other code hosters. It's not limited to GitHub and other major platforms and even works with each service, which is accessible over SSH.
First you must install SSH-MITM. It's recommended to use the AppImage, because this works out of the box on most Linux machines.
$ wget https://github.com/ssh-mitm/ssh-mitm/releases/latest/download/ssh-mitm-x86_64.AppImage
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Should SSH-MITM add a Codehoster user check as a default setting?
SSH-MITM is a tool to audit ssh sessions and protocols, which uses SSH as the transport protocol: https://github.com/ssh-mitm/ssh-mitm
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Python API Documentation created with ChatGPT
you can find the project on github: https://github.com/ssh-mitm/ssh-mitm
- SSH-MitM has prebuilt windows executables
- SSH-MitM's new logo is a fish (OpenSSH's logo) on a hook
- SSH-MitM – Support for OpenSSH's Certificate Authority Planned
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SSH-MITM - Support for OpenSSH's certificate authority planned
You should check the Revisionhistory of the Readme file first.. https://github.com/ssh-mitm/ssh-mitm/commit/564028af25c395528446fbb679c7392469d59bfd
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SSH-MitM 2.0.0 – Licence change to GPLv3
The “customized wording” you’re seeing is “The LGPL”. It’s a different license from the GPL.
The history on the repo shows that the original license was GPL (June 2020), the author changed the license to LGPL (December 2022), and now they’re changing it to GPL again. https://github.com/ssh-mitm/ssh-mitm/commits/master/LICENSE
sftpretty
What are some alternatives?
cowrie - Cowrie SSH/Telnet Honeypot https://cowrie.readthedocs.io
ssh-mitm - SSH man-in-the-middle tool
docker-sshd - Minimal Alpine Linux Docker image with sshd exposed and rsync installed
web-client-for-aws-transfer-family - This solution creates a web portal for your customers to access your corporate Secure Shell File Transfer Protocol (SFTP) environment. It combines the benefits of using AWS Transfer for SFTP with an intuitive web browser interface for your non-technical users.
super-auto-pets - A tool to allow for viewing of arbitrary Super Auto Pets replays
skippy - Simple. Comfortable. Powerful. notepad for www.scpwiki.com
mitm - 👨🏼💻 A customizable man-in-the-middle TCP intercepting proxy.
openssh-portable - Portable OpenSSH
BDFProxy - Patch Binaries via MITM: BackdoorFactory + mitmProxy.
dit - DIT is a DTLS MitM proxy implemented in Python 3. It can intercept, manipulate and suppress datagrams between two DTLS endpoints and supports psk-based and certificate-based authentication schemes (RSA + ECC).
proxy.py - ⚡ Fast • 🪶 Lightweight • 0️⃣ Dependency • 🔌 Pluggable • 😈 TLS interception • 🔒 DNS-over-HTTPS • 🔥 Poor Man's VPN • ⏪ Reverse & ⏩ Forward • 👮🏿 "Proxy Server" framework • 🌐 "Web Server" framework • ➵ ➶ ➷ ➠ "PubSub" framework • 👷 "Work" acceptor & executor framework