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#js
### Summary A flaw in the URL validation mechanism of Zitadel actions allows bypassing restrictions intended to block requests to localhost (127.0.0.1). The isHostBlocked check, designed to prevent such requests, can be circumvented by creating a DNS record that resolves to 127.0.0.1. This enables actions to send requests to localhost despite the intended security measures. ### Details While attempting to send a request directly to 127.0.0.1 via an action results in an error (see image below), the restriction can be bypassed using a custom DNS record. <img width="781" alt="image" src="https://github.com/user-attachments/assets/6d22dae8-407f-4420-a937-aca53d22d05d"> The relevant action code demonstrates the attempted request to 127.0.0.1: ``` let http = require('zitadel/http') let logger = require("zitadel/log") function make_api_call(ctx, api) { var user = http.fetch('http://127.0.0.1:8080/debug/metrics'); var api_r = http.fetch('https://obtjoiwgtaftuhbjugulyolvvxuvuuosq.oa...
Red Hat Security Advisory 2024-8461-03 - An update for krb5 is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.
Red Hat Security Advisory 2024-8455-03 - An update for edk2 is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Issues addressed include a buffer overflow vulnerability.
Red Hat Security Advisory 2024-8449-03 - An update for edk2 is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include a buffer overflow vulnerability.
Red Hat Security Advisory 2024-8447-03 - An update for python3.12 is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.
Red Hat Security Advisory 2024-8446-03 - An update for python3.9 is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.
Red Hat Security Advisory 2024-8263-03 - Red Hat OpenShift Container Platform release 4.16.18 is now available with updates to packages and images that fix several bugs and add enhancements.
Red Hat Security Advisory 2024-8260-03 - Red Hat OpenShift Container Platform release 4.16.18 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
The load-language command expects a `lang` parameter from which it constructs the path of the localization file to load, of the form `translations-$LANG.json`. When doing so, it does not check that the resulting path is in the expected directory, which means that this command could be exploited to read other JSON files on the file system. The command should be patched by checking that the normalized path is in the expected directory.
### Summary Usage of the `Butterfly.prototype.parseJSON` or `getJSON` functions on an attacker-controlled crafted input string allows the attacker to execute arbitrary JavaScript code on the server. Since Butterfly JavaScript code has access to Java classes, it can run arbitrary programs. ### Details The `parseJSON` function (edu/mit/simile/butterfly/Butterfly.js:64) works by calling `eval`, an approach that goes back to the original library by Crockford, before JSON was part of the ECMAScript language. It uses a regular expression to remove strings from the input, then checks that there are no unexpected characters in the non-string remainder. However, the regex is imperfect, as was [discovered earlier by Mike Samuel](https://dev.to/mikesamuel/2008-silently-securing-jsonparse-5cbb); specifically, the "cleaner" can be tricked into treating part of the input as a string that the "evaluator" does not, because of a difference in interpretation regarding the [the Unicode zero-width jo...