Information disclosure in Red Hat Ansible

1) Information disclosure

EUVDB-ID: #VU16312

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16859

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local attacker with administrative privileges to obtain potentially sensitive information.

The vulnerability exists due to the plaintext exposure of “become” passwords when Ansible playbooks are executed on a Windows system with PowerShell scriptblock logging and module logging. A local attacker can discover the plaintext password that can be used to conduct further attacks.

Mitigation

The vulnerability has been fixed in the versions 2.5.13, 2.6.10, 2.7.4.

Vulnerable software versions

Ansible: 1.0 - 2.7.3

External links

http://github.com/ansible/ansible/pull/49142

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.