This is a cool trick, using a UTF-8 parser differential between the client XML parsing library (Gloox) and the server side (fast_xml), to smuggling in characters that would end an XML tag prematurely and smuggle in new XML content.
Honestly, this is a bit of a crazy issue to see, during Login, if the LocalPasswordAuthAdapter gets used, it will attempt to validate the login credentials with whatever host is in the Host header, an attacker can often control this header completely. And so by pointing the header to a domain the attacker controls they can setup a server that will respond with an HTTP 200 to the authentication request allowing the attacker to login.
It seems that the syntax highlighting filter will read the data-sourcepos attribute rather permissively including newlines and angle brackets. This value gets reflected back out into the page where the browser will end up interpreting as HTML some of the text the backend throught was in the attribute.
At its core, a simple issue with path normalization between a reverse proxy and the end server, one treated ..%2f as a traversal and the other did not.This was used by the author to access internal NGINX Plus endpoints and was able to take advantage of it and was able to add his own server to the upstream list…
Three bugs for one guest-to-host escape.
On its own a pretty simple overflow.There exists a buffer for up to 32 elements to be read into, but the value that is used to determine how many elements to copy is not bounded and can be as high as 255…
Inspired by HTTPVoid’s February write-up about Hacking Google Drive Integrations. They took a bit deeper look at how HelloSign patched the SSRF documented.
A Transparency Consent and Control (TCC) bypass in macOS.TCC is the subsystem responsible for gating off access to privacy settings and iCloud account data and such…
Funny bug in Glovo, which is a delivery platform for taking orders and dispatching deliveries.The bug is an integer overflow in the quantity parameter of the POST request for the order, which can affect the total price of the order…
Bug comes from GitLab’s use of Rails UJS (Unobtrusive JavaScript).While known data-* attributes like data-url and data-method are stripped by DOMPurify, arbitrary data-* attributes aren’t…