CVE-2023-3489 - firmwaredownload command could log servers passwords in clear text

Brocade Directors

3 more products

22510

29 August 2023

29 August 2023

CLOSED

HIGH

8.6 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Yes

CVE-2023-3489

Brocade Security Advisory ID

BSA-2023-2335

Component

firmwaredownload command

 

 

Summary

The firmwaredownload command on Brocade Fabric OS v9.2.0 could log the FTP/SFTP/SCP server password in clear text in the SupportSave file when performing a downgrade from Fabric OS v9.2.0 to any earlier version of Fabric OS.

CVE Details
The firmwaredownload command downloads the Brocade Fabric OS firmware to the Brocade Switch by using FTP, SFTP, SCP, or HTTPs, or a USB device with the downloaded firmware. The firmwaredownload command supports both non-interactive and interactive modes. 

In Brocade Fabric OS v9.2.0, the command exposes the server password in clear text in theSupportSave file when it is collected. The issue is fixed in Brocade Fabric OS v9.2.0a, therefore a migration to/from Brocade Fabric OS v9.2.0a and later versions will not log passwords or sensitive data when the command is executed through the CLI, REST API or the web interface non-interactively.

Products Affected

Brocade Fabric OS v9.2.0. 

Note for Brocade Fabric OS v9.1.1x downgrades

Should the Brocade Switch be downgraded from v9.2.0 to v9.1.1x or any earlier version of FOS, using the CLI in non-interactive mode ie the whole command line, the password could be exposed in SupportSave file.  

Products Confrimed Not Affected

Brocade Fabric OS versions prior to v9.2.0 are not affected.

Workaround

The workaround is to use the web interface of REST API or to run the “firmwaredownload “ command in interactive mode.

Solution

Solution provided in Brocade Fabric OS v9.2.0a and later versions.

Credit

The issue was found during internal penetration testing

 Revision History

Version

Change

Date

1.0

Initial Publication

 August 29, 2023

 

Disclaimer

THIS DOCUMENT IS PROVIDED ON AN AS-IS BASIS SOLELY FOR INFORMATIONAL PURPOSES AND DOES NOT IMPLY ANY KIND OF GUARANTY OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. YOUR USE OF THE INFORMATION CONTAINED HEREIN IS AT YOUR OWN RISK. ALL INFORMATION PROVIDED HEREIN IS BASED ON BROCADE'S CURRENT KNOWLEDGE AND UNDERSTANDING OF THE VULNERABILITY AND IMPACT TO BROCADE HARDWARE AND SOFTWARE PRODUCTS. BROCADE RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.