> 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-15.md).

# Dockerfile sets YUM configuration to disable SSL verification misconfiguration detected in code

## Rule Details

|                        |                                            |
| ---------------------- | ------------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC2\_DOCKER\_15                        |
| Category - Subcategory | Public Exposure - Encryption And Protocols |
| Provider               | OTHER                                      |
| Severity               | HIGH                                       |
| Framework              | DOCKER                                     |

## Impact

Using the command `yum-config-manager --save --setopt=sslverify=false` in Dockerfiles is insecure. This command configures YUM (Yellowdog Updater Modified) to bypass SSL certificate verification when interacting with repositories.

Disabling SSL verification for YUM can put the container and its underlying applications at risk of man-in-the-middle (MitM) attacks. In such scenarios, unauthorized individuals can intercept, modify, or listen in on the traffic between the YUM package manager and the repository servers. This can lead to the installation of malicious or compromised packages, introducing vulnerabilities into the Docker image.

## How to Fix

## \[source,go]

* RUN yum-config-manager --save --setopt=sslverify=false
* RUN yum-config-manager --save --setopt=sslverify=true

***


---

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