CVE-2022-22761

Mozilla: frame-ancestors Content Security Policy directive was not enforced for framed extension pages

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Web-accessible extension pages (pages with a moz-extension:// scheme) were not correctly enforcing the frame-ancestors directive when it was used in the Web Extension's Content Security Policy. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Las páginas de extensión accesibles desde la web (páginas con un esquema moz-extension://) no aplicaban correctamente la directiva frame-ancestors cuando se usaba en la Política de seguridad de contenido de la extensión web. Esta vulnerabilidad afecta a Firefox < 97, Thunderbird < 91.6 y Firefox ESR < 91.6.

The Mozilla Foundation Security Advisory describes this flaw as:

Web-accessible extension pages (pages with a moz-extension:// scheme) were not correctly enforcing the frame-ancestors directive when it was used in the Web Extension's Content Security Policy.

*Credits: N/A

CVSS Scores

NISTv3.1 8.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-07 CVE Reserved
2022-02-14 CVE Published
2024-08-03 CVE Updated
2024-08-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-829: Inclusion of Functionality from Untrusted Control Sphere

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugzilla.mozilla.org/show_bug.cgi?id=1745566	2022-12-30
https://www.mozilla.org/security/advisories/mfsa2022-04	2022-12-30
https://www.mozilla.org/security/advisories/mfsa2022-05	2022-12-30
https://www.mozilla.org/security/advisories/mfsa2022-06	2022-12-30
https://access.redhat.com/security/cve/CVE-2022-22761	2022-02-15
https://bugzilla.redhat.com/show_bug.cgi?id=2053239	2022-02-15

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"				< 97.0 Search vendor "Mozilla" for product "Firefox" and version " < 97.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 91.6 Search vendor "Mozilla" for product "Firefox Esr" and version " < 91.6"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 91.6 Search vendor "Mozilla" for product "Thunderbird" and version " < 91.6"		-		Affected