Information disclosure in Ansible



| Updated: 2020-07-17
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-10156
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ansible
Server applications / Remote management servers, RDP, SSH

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU30975

Risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-10156

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote authenticated user to read and manipulate data.

A flaw was discovered in the way Ansible templating was implemented in versions before 2.6.18, 2.7.12 and 2.8.2, causing the possibility of information disclosure through unexpected variable substitution. By taking advantage of unintended variable substitution the content of any variable may be disclosed.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Ansible: 2.8.0 rc1 - 2.8.1

CPE2.3 External links

https://access.redhat.com/errata/RHSA-2019:3744
https://access.redhat.com/errata/RHSA-2019:3789
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10156
https://github.com/ansible/ansible/pull/57188
https://lists.debian.org/debian-lts-announce/2019/09/msg00016.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

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.

Is there known malware, which exploits this vulnerability?

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



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