Information disclosure in Red Hat Ansible

1) Information disclosure

EUVDB-ID: #VU15721

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-16837

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to Ansible "User" module exposes data passed as parameter to ssh-keygen. A local user with ability to view process list can obtain sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ansible: 1.0 - 2.7.0

CPE2.3

• cpe:2.3:a:red_hat:ansible:1.0.6:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:1.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:2.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:2.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:2.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:2.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:2.4.6:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:2.5.10:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:ansible:2.6.6:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/105700
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16837

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.