CVE-2017-7481

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.75% Top 15%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com
Affected: [UNKNOWN] ansible
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:1599 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7481 issue tracking patch vendor advisory
https://access.redhat.com/errata/RHSA-2017:1334 vendor advisory
http://www.securityfocus.com/bid/98492 vdb entry third party advisory
https://github.com/ansible/ansible/commit/ed56f51f185a1ffd7ea57130d260098686fcc7c2 third party advisory patch
https://access.redhat.com/errata/RHSA-2017:1244 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1499 vendor advisory
https://access.redhat.com/errata/RHSA-2017:2524 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1476 vendor advisory
https://usn.ubuntu.com/4072-1/ third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/01/msg00023.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2017-7481?
CVE-2017-7481 has been scored as a critical severity vulnerability.
How to fix CVE-2017-7481?
To fix CVE-2017-7481, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7481 being actively exploited in the wild?
It is possible that CVE-2017-7481 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7481?
CVE-2017-7481 affects [UNKNOWN] ansible.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.