Описание
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
"; 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//cmdline'.Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2020-1733
- https://github.com/ansible/ansible/issues/67791
- https://github.com/ansible/ansible/commit/80b9a0a25c5f75e84aefc8f2b293fb1933b154f2
- https://github.com/ansible/ansible/commit/8251d9f4c2bc82632ab992277fcd30ccbf87aa47
- https://github.com/ansible/ansible/commit/ecf99d5e1ff732a7777010facd6c98bb0994605e
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1733
- https://github.com/advisories/GHSA-g4mq-6fp5-qwcf
- https://github.com/pypa/advisory-database/tree/main/vulns/ansible/PYSEC-2020-5.yaml
- https://lists.debian.org/debian-lts-announce/2020/05/msg00005.html
- 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://security.gentoo.org/glsa/202006-11
- https://www.debian.org/security/2021/dsa-4950
Пакеты
ansible
< 2.7.17
2.7.17
ansible
>= 2.8.0a1, < 2.8.11
2.8.11
ansible
>= 2.9.0a1, < 2.9.7
2.9.7
EPSS
1 Low
CVSS4
5 Medium
CVSS3
CVE ID
Дефекты
Связанные уязвимости
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'.
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'.
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'.
A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2. ...
Уязвимость системы управления конфигурациями Ansible, связанная с небезопасными временными файлами, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании
EPSS
1 Low
CVSS4
5 Medium
CVSS3