CB PSC: SSH Forwarding Is No Longer Working When The Agent Is Installed From /tmp On Ubuntu 16.04
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CB PSC: SSH Forwarding Is No Longer Working When The Agent Is Installed From /tmp On Ubuntu 16.04

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Article ID: 290650

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Updated On:

Products

Carbon Black Cloud Audit and Remediation (formerly Cb Live Ops)

Issue/Introduction

  • The installer is copied to /tmp directory and the installer script is invoked from that path
  • Simply installing the agent w/o running it breaks the ssh forwarding, the agent does not need to execute to reproduce the problem
  • The issue is not reproducible when AllowAgentForwarding parameter is explicitly set to yes in the sshd config
  • The issue is not reproducible when the agent is installed from any directory other than /tmp (e.g. installing it from /home/<user>/, /tmp/<subdir>, etc. doesn't break the ssh forwarding)

Environment

  • CB PSC Linux Sensor: 3.4.2
  • Ubuntu 16.04

Cause

Issue with agent forwarding configuration when installing from /tmp/

Resolution

Carbon Black is aware of the issue and is working on a resolution

Additional Information

Workaround
Install agent from a directory other than /tmp/