CVE-2022-22760

Mozilla: Cross-Origin responses could be distinguished between script and non-script content-types

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

Al importar recursos utilizando Web Workers, los mensajes de error distinguirían la diferencia entre respuestas <code>application/javascript</code> y respuestas sin script. Se podría haber abusado de esto para aprender información de origen cruzado. Esta vulnerabilidad afecta a Firefox < 97, Thunderbird < 91.6 y Firefox ESR < 91.6.

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this flaw as: When importing resources using Web Workers, error messages would distinguish the difference between application/javascript responses and non-script responses. This could have been abused to learn information cross-origin.

*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

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

2022-01-07 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-209: Generation of Error Message Containing Sensitive Information
CWE-829: Inclusion of Functionality from Untrusted Control Sphere

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugzilla.mozilla.org/show_bug.cgi?id=1740985	2022-12-30
https://bugzilla.mozilla.org/show_bug.cgi?id=1748503	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-2022-22760	2022-02-15
https://bugzilla.redhat.com/show_bug.cgi?id=2053238	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