Mozilla Firefox up to 84.x on Android intent Scheme sandbox

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$5k-$25k0.00

A vulnerability was found in Mozilla Firefox up to 84.x on Android (Web Browser). It has been rated as critical. Affected by this issue is an unknown function of the component intent Scheme Handler. The manipulation with an unknown input leads to a sandbox vulnerability. Using CWE to declare the problem leads to CWE-265. Impacted is confidentiality, integrity, and availability.

The weakness was published 02/26/2021. The advisory is available at bugzilla.mozilla.org. This vulnerability is handled as CVE-2021-23957. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/05/2021). This vulnerability is assigned to T1611 by the MITRE ATT&CK project.

Upgrading to version 85.0 eliminates this vulnerability.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 7.4
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Sandbox
CWE: CWE-265 / CWE-264
ATT&CK: T1611

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 85.0

Timelineinfo

01/13/2021 🔍
02/26/2021 +44 days 🔍
02/26/2021 +0 days 🔍
03/05/2021 +7 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: bugzilla.mozilla.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-23957 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 02/26/2021 09:44
Updated: 03/05/2021 13:18
Changes: 02/26/2021 09:44 (42), 03/05/2021 13:12 (5), 03/05/2021 13:18 (18)
Complete: 🔍

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