Red Hat Ansible Playbooks Password Exposure Vulnerability [CVE-2018-16859]

CVE Number – CVE-2018-16859

A vulnerability in Red Hat Ansible could allow a local attacker to discover plaintext passwords on a targeted system. The vulnerability is due to the plaintext exposure of “become” passwords when Ansible playbooks are executed on a Windows system with PowerShell scriptblock logging and module logging. An attacker with administrator privileges could exploit this vulnerability to discover the plaintext password. A successful exploit could be used to conduct further attacks.Red Hat has confirmed the vulnerability and released software updates.


  • To exploit this vulnerability, the attacker must have administrator privileges on the targeted system. This access requirement may reduce the likelihood of a successful exploit.


  • Administrators are advised to apply the appropriate updates.Administrators are advised to allow only trusted users to have network access.Administrators are advised to monitor critical systems.

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Duncan Newell

Duncan is a technology professional with over 20 years experience of working in various IT roles. He has a interest in cyber security, and has a wide range of other skills in radio, electronics and telecommunications.

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