Mozilla Firefox up to 85.x HTTP Authentication ui layer

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Mozilla Firefox up to 85.x. Impacted is an unknown function of the component HTTP Authentication Handler. This manipulation causes ui layer. This vulnerability is handled as CVE-2021-23972. The attack can be initiated remotely. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 85.x (Web Browser). Affected by this vulnerability is an unknown code of the component HTTP Authentication Handler. The manipulation with an unknown input leads to a ui layer vulnerability. The CWE definition for the vulnerability is CWE-1021. The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 02/26/2021. The advisory is shared at bugzilla.mozilla.org. This vulnerability is known as CVE-2021-23972. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k.

Upgrading to version 86.0 eliminates this vulnerability. The upgrade is hosted for download at mozilla.org.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Ui layer
CWE: CWE-1021
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

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 86.0

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-2021-23972 (🔍)
GCVE (CVE): GCVE-0-2021-23972
GCVE (VulDB): GCVE-100-170461
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/26/2021 10:06
Updated: 03/05/2021 14:43
Changes: 02/26/2021 10:06 (43), 03/05/2021 14:43 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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