Vulnerability in semaphoreui Semaphore UI

[ Description ]Official description

Semaphore UI through 2.19.16 contains a remote code execution vulnerability that allows users with the task_runner role to override protected Ansible variables by supplying arbitrary keys in the task environment JSON. Attackers can POST tasks setting ansible_ssh_common_args with a ProxyCommand or ansible_connection=local to execute commands as the Semaphore server user, exposing encryption keys, SSH keys and stored secrets.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/semaphoreui/semaphore
• github.com/semaphoreui/semaphore/blob/v2.19.16/api/projects/tasks.go
• github.com/semaphoreui/semaphore/blob/v2.19.16/services/tasks/TaskRunner.go
• github.com/semaphoreui/semaphore/pull/3888
• www.vulncheck.com/advisories/semaphore-ui-through-2.19.16-rce-via-task-environment-ansi…