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CVE-2020-1733

15
FAUCET Score

CVE-2020-1733 is a race condition flaw in Ansible Engine versions 2.7.17 and prior, 2.8.9 and prior, and 2.9.6 and prior, affecting Debian, Fedora, and Red Hat. This vulnerability arises when a playbook is run with an unprivileged become user, allowing an attacker to potentially gain control of the become user by exploiting how temporary directories are created in /var/tmp. With a CVSS score of 5.0 (MEDIUM), this vulnerability has a local attack vector and high attack complexity, with low impact on confidentiality, integrity, and availability. The potential impact involves an attacker gaining control of the become user. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, indicating low public attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.7.16CPE matchmatch criteria
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
>= 2.8.0, < 2.8.8CPE matchmatch criteria
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
>= 2.9.0, <= 2.9.5CPE matchmatch criteria
cpe:2.3:a:redhat:ansible:*:*:*:*:*:*:*:*
<= 3.3.4CPE matchmatch criteria
cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*
>= 3.3.5, <= 3.4.5CPE matchmatch criteria
cpe:2.3:a:redhat:ansible_tower:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.0MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
0.8
Impact Score
3.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 89th percentile among its peer group of 296 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

pippatch availablevia ghsa
Product: ansibleFixed in: 2.7.17
pippatch availablevia ghsa
Product: ansibleFixed in: 2.8.11
pippatch availablevia ghsa
Product: ansibleFixed in: 2.9.7
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2.8 for RHEL 8Fixed in: ansible-0:2.8.11-1.el8ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2.9 for RHEL 7Fixed in: ansible-0:2.9.7-1.el7ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2.9 for RHEL 8Fixed in: ansible-0:2.9.7-1.el8ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2 for RHEL 8Fixed in: ansible-0:2.9.7-1.el8ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2 for RHEL 7Fixed in: ansible-0:2.9.7-1.el7ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2.7 for RHEL 7Fixed in: ansible-0:2.7.17-1.el7ae
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Engine 2.8 for RHEL 7Fixed in: ansible-0:2.8.11-1.el7ae
View patch
redhatvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Ansible Tower 3Fixed in: ansible
redhatend of lifevia redhat_api
Product: Red Hat Ceph Storage 3Fixed in: ansible
redhatend of lifevia redhat_api
Product: Red Hat OpenStack Platform 13 (Queens)Fixed in: ansible
redhatend of lifevia redhat_api
Product: Red Hat Storage 3Fixed in: ansible

Vendor Advisories (2)

pipGHSA-g4mq-6fp5-qwcflow

Ansible vulnerable to Exposure of Resource to Wrong Sphere and Insecure Temporary File

Apr 20, 2021
redhatCVE-2020-1733Moderate

ansible: insecure temporary directory when running become_user from become directive

Feb 18, 2020

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
github.com / ansible/ansible/issues/67791
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2020/05/msg00005.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HKJE7ADNGFW
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D64NP2UB2S
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NUGTJFE2PCB
security.gentoo.org / glsa/202006-11
Third Party Advisory
debian.org / security/2021/dsa-4950
Third Party Advisory