CVE-2017-7481 – ansible: Security issue with lookup return not tainting the jinja2 environment

https://notcve.org/view.php?id=CVE-2017-7481

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. Ansible en versiones anteriores a la 2.3.1.0 y 2.4.0.0 no marca correctamente los resultados del plugin lookup como no seguros. Si un atacante pudiese controlar los resultados de las llamadas lookup(), podrían inyectar cadenas Unicode para que sean analizadas por el sistema de plantillas jinja2, resultando en una ejecución de código. • 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://lists.deb • CWE-20: Improper Input Validation •