Mozilla Firefox up to 101 on iOS Internal URL Protection access control

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Mozilla Firefox up to 101 on iOS. Impacted is an unknown function of the component Internal URL Protection. This manipulation causes access control. This vulnerability is tracked as CVE-2022-31746. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mozilla Firefox up to 101 on iOS (Web Browser) and classified as critical. Affected by this vulnerability is an unknown code of the component Internal URL Protection. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Internal URLs are protected by a secret UUID key, which could have been leaked to web page through the Referrer header. This vulnerability affects Firefox for iOS < 102.

The weakness was disclosed 06/29/2022 by Muneaki Nishimura as mfsa2022-27. It is possible to read the advisory at mozilla.org. This vulnerability is known as CVE-2022-31746. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/15/2025). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 102 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 102

Timelineinfo

05/26/2022 🔍
06/29/2022 +34 days 🔍
07/19/2022 +20 days 🔍
04/15/2025 +1001 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: mfsa2022-27
Researcher: Muneaki Nishimura
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-31746 (🔍)
GCVE (CVE): GCVE-0-2022-31746
GCVE (VulDB): GCVE-100-204187

Entryinfo

Created: 07/19/2022 17:50
Updated: 04/15/2025 21:34
Changes: 07/19/2022 17:50 (44), 08/06/2022 14:33 (1), 04/15/2025 21:34 (27)
Complete: 🔍
Cache ID: 216::103

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