CVE-2017-7481 Information

Description

Ansible before versions 2.3.1.0 and 2.4.0.0 fails to properly mark lookup-plugin results as unsafe. If an attacker could control the results of lookup() calls they could inject Unicode strings to be parsed by the jinja2 templating system resulting in code execution. By default the jinja2 templating language is now marked as ‘unsafe’ and is not evaluated.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securityfocus.com/bid/98492 https://access.redhat.com/errata/RHSA-2017:1244 https://access.redhat.com/errata/RHSA-2017:1334 https://access.redhat.com/errata/RHSA-2017:1476 https://access.redhat.com/errata/RHSA-2017:1499 https://access.redhat.com/errata/RHSA-2017:1599 https://access.redhat.com/errata/RHSA-2017:2524 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7481 https://github.com/ansible/ansible/commit/ed56f51f185a1ffd7ea57130d260098686fcc7c2 https://usn.ubuntu.com/4072-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8