// For flags

CVE-2022-45411

Mozilla: Cross-Site Tracing was possible via non-standard override headers

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

El seguimiento entre sitios se produce cuando un servidor repite una solicitud a través del método Trace, lo que permite que un ataque XSS acceda a encabezados de autorización y cookies inaccesibles para JavaScript (como las cookies protegidas por HTTPOnly). Para mitigar este ataque, los navegadores impusieron límites a <code>fetch()</code> y XMLHttpRequest; sin embargo, algunos servidores web han implementado encabezados no estándar como <code>X-Http-Method-Override</code> que anulan el método HTTP e hicieron posible este ataque nuevamente. Thunderbird ha aplicado las mismas mitigaciones al uso de este y encabezados similares. Esta vulnerabilidad afecta a Firefox ESR &lt; 102,5, Thunderbird &lt; 102.5 y Firefox &lt; 107.

The Mozilla Foundation Security Advisory describes this flaw as: 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 fetch() and XMLHttpRequest; however some webservers have implemented non-standard headers such as X-Http-Method-Override that override the HTTP method, and made this attack possible again. Firefox has applied the same mitigations to the use of this and similar headers.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-11-14 CVE Reserved
  • 2022-11-16 CVE Published
  • 2024-07-14 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
Firefox
Search vendor "Mozilla" for product "Firefox"
< 107.0
Search vendor "Mozilla" for product "Firefox" and version " < 107.0"
-
Affected
Mozilla
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Firefox Esr
Search vendor "Mozilla" for product "Firefox Esr"
< 102.5
Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.5"
-
Affected
Mozilla
Search vendor "Mozilla"
Thunderbird
Search vendor "Mozilla" for product "Thunderbird"
< 102.5
Search vendor "Mozilla" for product "Thunderbird" and version " < 102.5"
-
Affected