> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/appsec-rules/iac-security/compute/appsec2-docker-4.md).

# Dockerfile certificate validation is disabled with the pip '--trusted-host' option misconfiguration

## Rule Details

|                        |                                            |
| ---------------------- | ------------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC2\_DOCKER\_4                         |
| Category - Subcategory | Public Exposure - Encryption And Protocols |
| Provider               | OTHER                                      |
| Severity               | HIGH                                       |
| Framework              | DOCKER                                     |

## Impact

This rule checks that your Dockerfile does not usepip or pip3 with the `--trusted-host option`.

The `--trusted-host` option in pip is used to mark a particular host as trusted, even if it doesn't have valid or any SSL.

By marking a host as trusted with `--trusted-host`, you're telling pip not to enforce SSL verification for that particular domain. As with the examples for curl and wget, this leaves you vulnerable to man-in-the-middle (MitM) attacks where attackers can intercept or alter the traffic between pip and the trusted host.

## How to Fix

## \[source,go]

* RUN pip install somepackage --trusted-host pypi.example.com
* RUN pip install somepackage

***


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