You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
26 lines
1.4 KiB
Markdown
26 lines
1.4 KiB
Markdown
# How do I install untrusted packages safely? Is it safe to run Composer as superuser or root?
|
|
|
|
Certain Composer commands, including `exec`, `install`, and `update` allow third party code to
|
|
execute on your system. This is from its "plugins" and "scripts" features. Plugins and scripts have
|
|
full access to the user account which runs Composer. For this reason, it is strongly advised to
|
|
**avoid running Composer as super-user/root**. All commands also dispatch events which can be
|
|
caught by plugins so unless explicitly disabled installed plugins will be loaded/executed by **every**
|
|
Composer command.
|
|
|
|
You can disable plugins and scripts during package installation or updates with the following
|
|
syntax so only Composer's code, and no third party code, will execute:
|
|
|
|
```sh
|
|
php composer.phar install --no-plugins --no-scripts ...
|
|
php composer.phar update --no-plugins --no-scripts ...
|
|
```
|
|
|
|
Depending on the operating system we have seen cases where it is possible to trigger execution
|
|
of files in the repository using specially crafted `composer.json`. So in general if you do want
|
|
to install untrusted dependencies you should sandbox them completely in a container or equivalent.
|
|
|
|
Also note that the `exec` command will always run third party code as the user which runs `composer`.
|
|
|
|
See [Environment variable - COMPOSER_ALLOW_SUPERUSER](../03-cli.md#composer-allow-superuser)
|
|
for more info on how to disable warning
|