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  5. CVE-2021-3701

CVE-2021-3701: ansible-runner has default temporary files written to world R/W locations

August 24, 2022 (updated November 26, 2024)

A flaw was found in ansible-runner where the default temporary files configuration in ansible-2.0.0 are written to world R/W locations. This flaw allows an attacker to pre-create the directory, resulting in reading private information or forcing ansible-runner to write files as the legitimate user in a place they did not expect. The highest threat from this vulnerability is to confidentiality and integrity.

References

  • access.redhat.com/security/cve/CVE-2021-3701
  • bugzilla.redhat.com/show_bug.cgi?id=1977959
  • github.com/advisories/GHSA-wwch-cmqr-hhrm
  • github.com/ansible/ansible-runner
  • github.com/ansible/ansible-runner/issues/738
  • github.com/ansible/ansible-runner/pull/742
  • github.com/ansible/ansible-runner/pull/742/commits
  • github.com/pypa/advisory-database/tree/main/vulns/ansible-runner/PYSEC-2022-43067.yaml
  • nvd.nist.gov/vuln/detail/CVE-2021-3701

Code Behaviors & Features

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Affected versions

All versions starting from 2.0.0 before 2.1.0

Fixed versions

  • 2.1.0

Solution

Upgrade to version 2.1.0 or above.

Impact 6.6 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-276: Incorrect Default Permissions

Source file

pypi/ansible-runner/CVE-2021-3701.yml

Spotted a mistake? Edit the file on GitLab.

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