Ansible vulnerable to Exposure of Resource to Wrong Sphere and Insecure Temporary File
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'.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Python (PyPI) | ansible | < 2.7.17, >= 2.8.0a1, < 2.8.11, >= 2.9.0a1, < 2.9.7 | 2.7.17, 2.8.11, 2.9.7 |
Referencias
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1733
- https://github.com/ansible/ansible/issues/67791
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HKJE7ADNGFW/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NUGTJFE2PCB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D64NP2UB2S/
- https://lists.debian.org/debian-lts-announce/2020/05/msg00005.html
- https://security.gentoo.org/glsa/202006-11
- https://github.com/advisories/GHSA-g4mq-6fp5-qwcf
- https://nvd.nist.gov/vuln/detail/CVE-2020-1733
- https://github.com/ansible/ansible/commit/80b9a0a25c5f75e84aefc8f2b293fb1933b154f2
- https://github.com/ansible/ansible/commit/8251d9f4c2bc82632ab992277fcd30ccbf87aa47
- https://github.com/ansible/ansible/commit/ecf99d5e1ff732a7777010facd6c98bb0994605e
- https://github.com/ansible/ansible
- https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2020-5.yaml
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HKJE7ADNGFW
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D64NP2UB2S
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NUGTJFE2PCB
- https://www.debian.org/security/2021/dsa-4950
- Vector CVSS
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L- Debilidad (CWE)
CWE-362, CWE-377, CWE-668- Plataforma
- Python (PyPI)
- Paquete
ansible- Publicada
- 11.03.2020
- Actualizado
- 11.10.2026 12:18
Fuentes y licencias
OSV / GitHub Advisory Database - PYSEC-2020-5 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-g4mq-6fp5-qwcf - CC BY 4.0
Historial de vulnerabilidades: ansible
Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 68
- Primera → última
- 09.2013 12.2025
- Sin corrección
- 2
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 9
- Alta 24
- Media 27
- Baja 6
- Sin evaluar 2
Divulgaciones por año
- 2017: 3
- 2018: 12
- 2019: 8
- 2020: 29
- 2021: 7
- 2022: 3
- 2023: 1
- 2024: 0
- 2025: 1
- 2026: 0
antes: 4
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Ansible vulnerable to Exposure of Resource to Wrong Sphere and Insecure Temporary File esta entrada
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