canonical / mysql-operator

Machine charm for MySQL following the operator framework
https://charmhub.io/mysql
Apache License 2.0
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Update dependency urllib3 to v1.26.19 [SECURITY] #501

Closed renovate[bot] closed 2 months ago

renovate[bot] commented 2 months ago

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
urllib3 (changelog) 1.26.16 -> 1.26.19 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2023-43804

urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.

Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.

Affected usages

We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:

Remediation

CVE-2023-45803

urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 303 "See Other" after the request had its method changed from one that could accept a request body (like POST) to GET as is required by HTTP RFCs. Although the behavior of removing the request body is not specified in the section for redirects, it can be inferred by piecing together information from different sections and we have observed the behavior in other major HTTP client implementations like curl and web browsers.

From RFC 9110 Section 9.3.1:

A client SHOULD NOT generate content in a GET request unless it is made directly to an origin server that has previously indicated, in or out of band, that such a request has a purpose and will be adequately supported.

Affected usages

Because the vulnerability requires a previously trusted service to become compromised in order to have an impact on confidentiality we believe the exploitability of this vulnerability is low. Additionally, many users aren't putting sensitive data in HTTP request bodies, if this is the case then this vulnerability isn't exploitable.

Both of the following conditions must be true to be affected by this vulnerability:

Remediation

You can remediate this vulnerability with any of the following steps:

CVE-2024-37891

When using urllib3's proxy support with ProxyManager, the Proxy-Authorization header is only sent to the configured proxy, as expected.

However, when sending HTTP requests without using urllib3's proxy support, it's possible to accidentally configure the Proxy-Authorization header even though it won't have any effect as the request is not using a forwarding proxy or a tunneling proxy. In those cases, urllib3 doesn't treat the Proxy-Authorization HTTP header as one carrying authentication material and thus doesn't strip the header on cross-origin redirects.

Because this is a highly unlikely scenario, we believe the severity of this vulnerability is low for almost all users. Out of an abundance of caution urllib3 will automatically strip the Proxy-Authorization header during cross-origin redirects to avoid the small chance that users are doing this on accident.

Users should use urllib3's proxy support or disable automatic redirects to achieve safe processing of the Proxy-Authorization header, but we still decided to strip the header by default in order to further protect users who aren't using the correct approach.

Affected usages

We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:

Remediation


Release Notes

urllib3/urllib3 (urllib3) ### [`v1.26.19`](https://togithub.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12619-2024-06-17) [Compare Source](https://togithub.com/urllib3/urllib3/compare/1.26.18...1.26.19) \==================== - Added the `Proxy-Authorization` header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via `Retry.remove_headers_on_redirect`. - Fixed handling of OpenSSL 3.2.0 new error message for misconfiguring an HTTP proxy as HTTPS. (`#​3405 `\__) ### [`v1.26.18`](https://togithub.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12618-2023-10-17) [Compare Source](https://togithub.com/urllib3/urllib3/compare/1.26.17...1.26.18) \==================== - Made body stripped from HTTP requests changing the request method to GET after HTTP 303 "See Other" redirect responses. ### [`v1.26.17`](https://togithub.com/urllib3/urllib3/blob/HEAD/CHANGES.rst#12617-2023-10-02) [Compare Source](https://togithub.com/urllib3/urllib3/compare/1.26.16...1.26.17) \==================== - Added the `Cookie` header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via `Retry.remove_headers_on_redirect`. (`#​3139 `\_)

Configuration

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