CVE-2022-34472

Mozilla: Unavailable PAC file resulted in OCSP requests being blocked

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

If there was a PAC URL set and the server that hosts the PAC was not reachable, OCSP requests would have been blocked, resulting in incorrect error pages being shown. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Si hubiera una URL de PAC configurada y no se pudiera acceder al servidor que aloja el PAC, las solicitudes de OCSP se habrían bloqueado, lo que provocaría que se mostraran páginas de error incorrectas. Esta vulnerabilidad afecta a Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102 y Thunderbird < 91.11.

A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue that if a PAC URL was set and the server that hosts the PAC was not reachable, OCSP requests are blocked, resulting in incorrect error pages being shown.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

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

2022-06-24 CVE Reserved
2022-06-28 CVE Published
2024-07-14 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-393: Return of Wrong Status Code

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2022-24	2023-01-04
https://www.mozilla.org/security/advisories/mfsa2022-25	2023-01-04
https://www.mozilla.org/security/advisories/mfsa2022-26	2023-01-04
https://access.redhat.com/security/cve/CVE-2022-34472	2022-07-01
https://bugzilla.redhat.com/show_bug.cgi?id=2102166	2022-07-01

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"				< 102.0 Search vendor "Mozilla" for product "Firefox" and version " < 102.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 91.11 Search vendor "Mozilla" for product "Firefox Esr" and version " < 91.11"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 91.11 Search vendor "Mozilla" for product "Thunderbird" and version " < 91.11"		-		Affected