Changes to 2.4.6 url encoding, trigger certain WaF rules

[toonvd]

Preconditions and environment

• 2.4.6
• 5c8ef9d
• A file ending or starting with a tilde, is very often a temp file. Some WaFs, tend to block these requests as it could mean an attempt to abuse old temp files for fetching information.

Steps to reproduce

Check URLs in checkout for example

Expected result

Another character that does not suggest an attempt to abuse temp files should be used.

Actual result

A tilde is used and often ends up at the start or the end of the path

Additional information

No response

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

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[m2-assistant]

Hi @engcom-Bravo. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).
• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue.
• 3. Add Area: XXXXX label to the ticket, indicating the functional areas it may be related to.
• 4. Verify that the issue is reproducible on 2.4-develop branch
  Details

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  - If the issue is reproducible on 2.4-develop branch, please, add the label Reproduced on 2.4.x.
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[engcom-Bravo]

Hi @toonvd,

Thank you for reporting and collaboration.

Could you please elaborate the steps to reproduce in order to reproduce the issue and also if possible please provide us screenshots it will helps us to proceed further.

Thanks.

[toonvd]

Hi

The commit and explanation should be more than enough. Taking screenshots of a blocked request really doesn't add any value.

Here's an example of a link:

https://toonistesting.nl/customer/account/login/referer/aHR0cHM6Ly93d3cucHNmb29kYW5kbGlmZXN0eWxlLm5sL2N1c3RvbWVyL2FjT291bnQvaW5kZBg~

As you can see, this link ends with a tilde because of the replace function in the referenced commit. Files starting and ending with a tilde are temp files for many editors + almost all Windows applications. Hence it triggers blocks / false positives.

[m2-assistant]

Hi @engcom-November. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).
• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue.
• 3. Add Area: XXXXX label to the ticket, indicating the functional areas it may be related to.
• 4. Verify that the issue is reproducible on 2.4-develop branch
  Details

  - Add the comment @magento give me 2.4-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.4-develop branch, please, add the label Reproduced on 2.4.x.
  - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!
• 5. Add label Issue: Confirmed once verification is complete.
• 6. Make sure that automatic system confirms that report has been added to the backlog.

[engcom-November]

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @engcom-November. Thank you for your request. I'm working on Magento instance for you.