Red Hat Ansible Automation Platform: code execution

A flaw was found in Ansible Automation Platform's automation-controller. The custom

Credential Type environment-variable injector validates variable names against a

deny-list (an ANSIBLE_* prefix check plus a fixed ENV_BLOCKLIST) that omits

process-hijacking loader variables such as BASH_ENV, ENV, LD_PRELOAD, LD_LIBRARY_PATH,

PYTHONSTARTUP and GIT_SSH_COMMAND. Combined with the credential file injector, a

privileged user can write an attacker-controlled script into the execution environment

and point BASH_ENV at it, obtaining arbitrary code execution inside the

execution-environment container for any job that attaches a credential of that type.