CVE-2022-45403

Mozilla: Service Workers might have learned size of cross-origin media files

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Los trabajadores de servicios no deberían poder inferir información sobre respuestas opacas de origen cruzado; pero la información de tiempo para medios de distintos orígenes combinada con solicitudes de rango podría haberles permitido determinar la presencia o la longitud de un archivo multimedia. Esta vulnerabilidad afecta a Firefox ESR < 102,5, Thunderbird < 102.5 y Firefox < 107.

The Mozilla Foundation Security Advisory describes this flaw as: Service Workers should not be able to infer information about opaque cross-origin responses; but timing information for cross-origin media combined with Range requests might have allowed them to determine the presence or length of a media file.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

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

2022-11-14 CVE Reserved
2022-11-17 CVE Published
2024-07-14 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-203: Observable Discrepancy
CWE-829: Inclusion of Functionality from Untrusted Control Sphere

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2022-47	2023-01-04
https://www.mozilla.org/security/advisories/mfsa2022-48	2023-01-04
https://www.mozilla.org/security/advisories/mfsa2022-49	2023-01-04
https://access.redhat.com/security/cve/CVE-2022-45403	2022-12-13
https://bugzilla.redhat.com/show_bug.cgi?id=2143197	2022-12-13

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 Search vendor "Mozilla"		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