#VU15721 Information disclosure in Ansible - CVE-2018-16837

Vulnerability identifier: #VU15721

Vulnerability 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

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Ansible
Server applications / Remote management servers, RDP, SSH

Vendor: Red Hat Inc.

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 - 1.0.6, 1.1, 1.2 - 1.2.1, 2.0.0 - 2.0.2, 2.1.0 - 2.1.6, 2.2.0 - 2.2.3, 2.3.0 - 2.3.3, 2.4.0 - 2.4.6, 2.5.0 - 2.5.10, 2.6.0 - 2.6.6, 2.7.0

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

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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.

Is there known malware, which exploits this vulnerability?

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