> 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-9.md).

# Dockerfile YUM package manager is configured to skip GPG signature checks misconfiguration detected

## Rule Details

|                        |                                            |
| ---------------------- | ------------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC2\_DOCKER\_9                         |
| Category - Subcategory | Public Exposure - Encryption And Protocols |
| Provider               | OTHER                                      |
| Severity               | MEDIUM                                     |
| Framework              | DOCKER                                     |

## Impact

Using the `--nogpgcheck` option with the YUM package manager (`yum`) in Dockerfiles introduces security risks. This flag instructs YUM to bypass GPG signature verification when installing packages.

By skipping the GPG signature check, the container could be exposed to tampered or malicious packages. This bypass can result in the inclusion of compromised software or vulnerable versions in the container image, potentially undermining the container's security and the integrity of applications contained within.

## How to Fix

## \[source,go]

* RUN yum install -y --nogpgcheck somepackage
* RUN yum install -y somepackage

***


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