Описание
In Docker before 18.09.4, an attacker who is capable of supplying or manipulating the build path for the "docker build" command would be able to gain command execution. An issue exists in the way "docker build" processes remote git URLs, and results in command injection into the underlying "git clone" command, leading to code execution in the context of the user executing the "docker build" command. This occurs because git ref can be misinterpreted as a flag.
A command injection flaw was discovered in Docker during the docker build command. By providing a specially crafted path argument for the container to build, it is possible to inject command options to the git fetch/git checkout commands that are executed by Docker and to execute code with the privileges of the user running Docker. A local attacker who can run docker build with a controlled build path, or a remote attacker who has control over the docker build path, could elevate their privileges or execute code.
Отчет
Both 1.12 and 1.13 versions of docker shipped with Red Hat Enterprise Linux Extras and OpenShift Container Platform 3 are vulnerable to this flaw, though they are less impacted than upstream. The injected command options passed to docker build through the docker build path are handled by git checkout rather than git fetch, which provides limited options for an attacker to exploit. It is unlikely that code execution is possible, though it cannot be ruled out entirely.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat OpenShift Container Platform 3.6 | docker | Out of support scope | ||
| Red Hat OpenShift Container Platform 3.7 | docker | Out of support scope | ||
| Red Hat Enterprise Linux 7 Extras | docker | Fixed | RHBA-2019:3092 | 16.10.2019 |
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Дополнительная информация
Статус:
EPSS
6.7 Medium
CVSS3
Связанные уязвимости
In Docker before 18.09.4, an attacker who is capable of supplying or manipulating the build path for the "docker build" command would be able to gain command execution. An issue exists in the way "docker build" processes remote git URLs, and results in command injection into the underlying "git clone" command, leading to code execution in the context of the user executing the "docker build" command. This occurs because git ref can be misinterpreted as a flag.
In Docker before 18.09.4, an attacker who is capable of supplying or manipulating the build path for the "docker build" command would be able to gain command execution. An issue exists in the way "docker build" processes remote git URLs, and results in command injection into the underlying "git clone" command, leading to code execution in the context of the user executing the "docker build" command. This occurs because git ref can be misinterpreted as a flag.
In Docker before 18.09.4, an attacker who is capable of supplying or m ...
In Docker before 18.09.4, an attacker who is capable of supplying or manipulating the build path for the "docker build" command would be able to gain command execution. An issue exists in the way "docker build" processes remote git URLs, and results in command injection into the underlying "git clone" command, leading to code execution in the context of the user executing the "docker build" command. This occurs because git ref can be misinterpreted as a flag.
EPSS
6.7 Medium
CVSS3