> 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-2.md).

# Dockerfile certificate validation is disabled with curl misconfiguration detected in code

## Rule Details

|                        |                                            |
| ---------------------- | ------------------------------------------ |
| Cortex AppSec Rule ID  | APPSEC2\_DOCKER\_2                         |
| Category - Subcategory | Public Exposure - Encryption And Protocols |
| Provider               | OTHER                                      |
| Severity               | HIGH                                       |
| Framework              | DOCKER                                     |

## Impact

This rule checks for the use of either the --insecure option or the -k shorthand with `curl`. Both these flags tell curl to skip verifying the server's certificate when making a request over HTTPS.

Bypasses SSL Verification: By using either --insecure or -k, you're telling curl to not validate the SSL certificate of the server it's connecting to. This makes the request vulnerable to man-in-the-middle (MitM) attacks, where an attacker can intercept and possibly modify the traffic between curl and the server.

## How to Fix

## Don't use the --insecure flag. \[source,go]

* RUN curl --insecure <https://example.com/somepackage.tar.gz> | tar xz
* RUN curl <https://example.com/somepackage.tar.gz> | tar xz

***


---

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