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CVE-2020-1733

A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an…

Medium5.0EPSS 0.40%
Published
Updated
Reserved
Assigned by
redhat

Description

A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p <dir>"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc/<pid>/cmdline'.

Scores

CVSS scores of CVE-2020-1733, by who scored it
Scored byCVSSScoreVector
redhatCNA (assigner)3.1Medium5.0CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L
NVDNVD · Modified3.1Medium5.0CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L
EPSS (exploitation in 30 days)
0.40% · top 66% of all CVEs (6 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

Affected products

  • Red Hat · Ansible

    • affected 2.7.17 and prior
    • affected 2.8.9 and prior
    • affected 2.9.6 and prior

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References (8)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2020-1733 badge
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Record last updated .