CVE-2022-45411

Medium

Description

Cross-Site Tracing occurs when a server will echo a request back via the Trace method, allowing an XSS attack to access to authorization headers and cookies inaccessible to JavaScript (such as cookies protected by HTTPOnly). To mitigate this attack, browsers placed limits on <code>fetch()</code> and XMLHttpRequest; however some webservers have implemented non-standard headers such as <code>X-Http-Method-Override</code> that override the HTTP method, and made this attack possible again. Thunderbird has applied the same mitigations to the use of this and similar headers. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

SeverityMedium
CVSS6.1
Exploit probability—
ProductMozilla Firefox
PublishedDec 22, 2022
First seenDec 22, 2022

How to fix

Update
  • mozilla firefox107.0 or later
  • mozilla firefox_esr102.5 or later
  • mozilla thunderbird102.5 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 107.0107.0
mozilla firefox_esrv < 102.5102.5
mozilla thunderbirdv < 102.5102.5

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