Add SSH Tunnel check to SSH.pm to prevent users with shell access fro… #91
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…m creating spam tunnels. In the past, we have seen some instances of malicious users creating local SSH tunnels to send out spam email - They could also use tunnels to commit abusive behavior overall, for example, a user could technically create a ssh tunnel between a few different hacked servers for brute force attacks. This patch checks sshd_config (Tested against C7 + 11.66) and looks for X11Forwarding being set to yes, which implies default configuration (stock C7 enables all 3 methods of forwarding by default)
|
CPANEL-15495 |
|
From the description, it sounds like we are more interested in Note: it has many valid values: |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
…m creating spam tunnels.
In the past, we have seen some instances of malicious users creating local SSH tunnels to send out spam email - They could also use tunnels to commit abusive behavior overall, for example, a user could technically create a ssh tunnel between a few different hacked servers for brute force attacks.
This patch checks sshd_config (Tested against C7 + 11.66) and looks for X11Forwarding being set to yes, which implies default configuration (stock C7 enables all 3 methods of forwarding by default)