Описание
Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, repositories with submodules can be crafted in a way that exploits a bug in Git whereby it can be fooled into writing files not into the submodule's worktree but into a .git/ directory. This allows writing a hook that will be executed while the clone operation is still running, giving the user no opportunity to inspect the code that is being executed. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4. If symbolic link support is disabled in Git (e.g. via git config --global core.symlinks false), the described attack won't work. As always, it is best to avoid cloning repositories from untrusted sources.
A vulnerability was found in Git. This vulnerability allows the malicious manipulation of repositories containing submodules, exploiting a bug that enables the writing of files into the .git/ directory instead of the submodule's intended worktree. This manipulation facilitates the execution of arbitrary code during the cloning process, bypassing user inspection and control.
Отчет
While the described bug in Git presents a significant security concern, it falls short of being categorized as Critical due to several factors. The exploit requires a specific set of conditions, such as repositories with submodules and the presence of symbolic link support. Additionally, successful exploitation relies on users cloning repositories from untrusted sources, limiting its scope compared to critical vulnerabilities that may be remotely exploitable or affect a broader range of use cases. However, the potential impact of remote code execution during cloning operations underscores the importance of promptly applying patches and exercising caution when interacting with Git repositories, emphasizing its significant severity within the realm of software security.
Меры по смягчению последствий
One preventative measure is to disable symbolic link support. This can be accomplished by running the command git config --global core.symlinks false. Another temporary option is to avoid using the --recurse-submodules setting with untrusted git repos.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | git | Affected | ||
| Red Hat Enterprise Linux 6 | git | Out of support scope | ||
| Red Hat Enterprise Linux 7 | git | Will not fix | ||
| Red Hat Fuse 7 | git | Will not fix | ||
| Red Hat Software Collections | rh-git227-git | Affected | ||
| Red Hat Enterprise Linux 8 | git | Fixed | RHSA-2024:4084 | 25.06.2024 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | git | Fixed | RHSA-2024:6028 | 29.08.2024 |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | git | Fixed | RHSA-2024:6028 | 29.08.2024 |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | git | Fixed | RHSA-2024:6028 | 29.08.2024 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | git | Fixed | RHSA-2024:6027 | 29.08.2024 |
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Дополнительная информация
Статус:
EPSS
9 Critical
CVSS3
Связанные уязвимости
Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, repositories with submodules can be crafted in a way that exploits a bug in Git whereby it can be fooled into writing files not into the submodule's worktree but into a `.git/` directory. This allows writing a hook that will be executed while the clone operation is still running, giving the user no opportunity to inspect the code that is being executed. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4. If symbolic link support is disabled in Git (e.g. via `git config --global core.symlinks false`), the described attack won't work. As always, it is best to avoid cloning repositories from untrusted sources.
Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4, repositories with submodules can be crafted in a way that exploits a bug in Git whereby it can be fooled into writing files not into the submodule's worktree but into a `.git/` directory. This allows writing a hook that will be executed while the clone operation is still running, giving the user no opportunity to inspect the code that is being executed. The problem has been patched in versions 2.45.1, 2.44.1, 2.43.4, 2.42.2, 2.41.1, 2.40.2, and 2.39.4. If symbolic link support is disabled in Git (e.g. via `git config --global core.symlinks false`), the described attack won't work. As always, it is best to avoid cloning repositories from untrusted sources.
GitHub: CVE-2024-32002 Recursive clones on case-insensitive filesystems that support symlinks are susceptible to Remote Code Execution
Git is a revision control system. Prior to versions 2.45.1, 2.44.1, 2. ...
Уязвимость распределенной системы контроля версий Git, связанная с неверным ограничением имени пути к каталогу с ограниченным доступом, позволяющая нарушителю выполнить произвольный код
EPSS
9 Critical
CVSS3