Описание
Downloading malicious GitHub Actions workflow artifact results in path traversal vulnerability
Summary
A security vulnerability has been identified in GitHub CLI that could create or overwrite files in unintended directories when users download a malicious GitHub Actions workflow artifact through gh run download.
Details
This vulnerability stems from a GitHub Actions workflow artifact named .. when downloaded using gh run download. The artifact name and --dir flag are used to determine the artifact’s download path. When the artifact is named .., the resulting files within the artifact are extracted exactly 1 directory higher than the specified --dir flag value.
In 2.63.1, gh run download will not download artifacts named .. and . and instead exit with the following error message:
Impact
Successful exploitation heightens the risk of local path traversal attack vectors exactly 1 directory higher than intended.
Remediation and Mitigation
- Upgrade
ghto2.63.1 - Implement additional validation to ensure artifact filenames do not contain potentially dangerous patterns, such as
.., to prevent path traversal risks.
Пакеты
github.com/cli/cli/v2
< 2.63.1
2.63.1
github.com/cli/cli
<= 1.14.0
Отсутствует
Связанные уязвимости
The GitHub CLI is GitHub’s official command line tool. A security vulnerability has been identified in GitHub CLI that could create or overwrite files in unintended directories when users download a malicious GitHub Actions workflow artifact through gh run download. This vulnerability stems from a GitHub Actions workflow artifact named .. when downloaded using gh run download. The artifact name and --dir flag are used to determine the artifact’s download path. When the artifact is named .., the resulting files within the artifact are extracted exactly 1 directory higher than the specified --dir flag value. This vulnerability is fixed in 2.63.1.
The GitHub CLI is GitHub’s official command line tool. A security vulnerability has been identified in GitHub CLI that could create or overwrite files in unintended directories when users download a malicious GitHub Actions workflow artifact through gh run download. This vulnerability stems from a GitHub Actions workflow artifact named .. when downloaded using gh run download. The artifact name and --dir flag are used to determine the artifact’s download path. When the artifact is named .., the resulting files within the artifact are extracted exactly 1 directory higher than the specified --dir flag value. This vulnerability is fixed in 2.63.1.
GitHub CLI allows downloading malicious GitHub Actions workflow artifact to result in path traversal vulnerability
The GitHub CLI is GitHub\u2019s official command line tool. A security ...
Уязвимость интерфейса командной строки CLI платформы для совместной разработки GitHub, связанная с неверным ограничением имени пути к каталогу с ограниченным доступом, позволяющая нарушителю получить доступ на чтение, изменение или удаление файлов