CVE-2020-1734

Name: CVE-2020-1734
Creator: NVD / NIST
Published: 2020-03-03T22:15:10.843+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2020-1734 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A flaw was found in the pipe lookup plugin of ansible. Arbitrary commands can be run, when the pipe lookup plugin uses subprocess.Popen() with shell=True, by overwriting ansible facts and the variable is not escaped by quote plugin. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

A flaw was found in the pipe lookup plugin of ansible. Arbitrary commands can be run, when the pipe lookup plugin uses subprocess.Popen() with shell=True, by overwriting ansible facts and the variable is not escaped by quote plugin. An attacker could take advantage and run arbitrary commands by overwriting the ansible facts.

Metrics

CVSS 3.1

7.4/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L

EPSS Probability

0.44%

35.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Ansible Engine	<= 2.7.16
Redhat	Ansible Engine	2.8.8
Redhat	Ansible Engine	2.9.5
Redhat	Ansible Tower	<= 3.3.4
Redhat	Ansible Tower	3.4.5
Redhat	Ansible Tower	3.5.5
Redhat	Ansible Tower	3.6.3

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1734Issue Tracking, Third Party Advisory
https://github.com/ansible/ansible/issues/67792Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1734Issue Tracking, Third Party Advisory
https://github.com/ansible/ansible/issues/67792Third Party Advisory

Timeline

Published: Mar 3, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-1734?

How severe is CVE-2020-1734?

CVE-2020-1734 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1734?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1734?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST