CVE-2021-3702: Race Condition
First published: Wed Jun 30 2021(Updated: )
A race condition flaw was found in ansible-runner, where an attacker could watch for rapid creation and deletion of a temporary directory, substitute their directory at that name, and then have access to ansible-runner's private_data_dir the next time ansible-runner made use of the private_data_dir. The highest Threat out of this flaw is to integrity and confidentiality.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Redhat Ansible Runner | =2.0.0 | |
| pip/ansible-runner | >=2.0.0<2.1.0 | 2.1.0 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2021-3702
- https://bugzilla.redhat.com/show_bug.cgi?id=1977965
- https://github.com/ansible/ansible-runner/pull/742/commits
- https://github.com/ansible/ansible-runner/pull/742/commits/0e9aa8a97e7832ef9a1553ef2908632a32d2b8c4
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1977968
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1977967
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1977966
- https://github.com/ansible/ansible-runner/blob/26a06567df037889f15e4b2eaa29919c6637986f/ansible_runner/utils.py#L151
- https://github.com/ansible/ansible-runner/blob/94f58c7c3667102dbafbf3b2349322c594deeccc/ansible_runner/utils.py#L143
- https://github.com/ansible/ansible-runner/commit/93e95a3df9021a38010386d07df121392d249253
- https://github.com/ansible/ansible-runner/pull/742
- https://access.redhat.com/security/cve/cve-2021-3702
- https://nvd.nist.gov/vuln/detail/CVE-2021-3702
- https://github.com/pypa/advisory-database/tree/main/vulns/ansible-runner/PYSEC-2022-43068.yaml
- https://github.com/advisories/GHSA-772j-xvf9-qpf5 (Advisory)
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