__April 19th, 2024\\
CrushFTP v11 versions below 11.1 have a vulnerability where users can escape their VFS and download system files.  This has been patched in v11.1.0.  Customers using a [DMZ] in front of their main CrushFTP instance are protected with its protocol translation system it utilizes.  (CREDIT:Simon Garrelou, of Airbus CERT)__\\
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!!Updating CrushFTP v11

!How to update CrushFTP within the same major version number:
1.) Login to the dashboard using your "crushadmin" equivalent user in the WebInterface.\\
2.) Click on the about tab.\\
3.) Click Update, Update Now.\\
4.) Wait roughly 5 minutes for the files to download, unzip, and be copied in place.  CrushFTP will auto restart once done.\\
5.) Finished.\\
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[{Image src='minor_update.jpg' width='1080' height='..' align='left' style='..' class='..' }]\\
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!Installing an offline update when the server cannot reach our server over the internet directly:
1.) Download CrushFTP11.zip from our download page. ([https://www.crushftp.com/early11/CrushFTP11.zip|https://www.crushftp.com/early11/CrushFTP11.zip])\\
2.) Give it the specific name `CrushFTP10_new.zip` and place this in the CrushFTP main folder. (Same location where you have your prefs.XML file)\\
3.) See above normal instructions as Crush will use your local offline zip file.\\


!How to restore a backup in the event of some issue or regression in functionality:
(CrushFTP automatically creates a backup of its core files in the CrushFTP folder, backup folder.)\\
1.) Restore the CrushFTP.jar file.\\
2.) Restore the plugins folder.\\
3.) Restore the WebInterface folder...mainly the CrushTunnel.jar file from inside it.\\
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!Changelog: [https://www.crushftp.com/version11_build.html]\\
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!!Updating an old CrushFTP v9 and prior
You must upgrade: [CrushFTPUpgrade]\\
You need a v10+ license code first!  If you are an enterprise customer, contact us for your code.  Its free if your maintenance is current.

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All prior versions of CrushFTP were also affected by this most recent vulnerability.\\
CrushFTP v10 info: [https://www.crushftp.com/crush10wiki/Wiki.jsp?page=Update]\\