Summary

ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)

Products Affected

• Brocade ASCG before 3.4.0

Products Not Affected

• Brocade SANnav
  [VEX Justification: Vulnerable_code_not_in_execute_path]
• Brocade Fabric OS
  [VEX Justification: Vulnerable_code_not_in_execute_path]

Solution

• Security update provided in Brocade ASCG 3.4.0

Credit

The issue was discovered during internal testing.

Revision History

Disclaimer

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