Google Chrome prior 89.0.4389.72 URL Format privilege escalation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
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.
4.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Google Chrome. Affected is an unknown function of the component URL Format Handler. Executing a manipulation can lead to an unknown weakness. This vulnerability is handled as CVE-2021-21187. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Google Chrome (Web Browser). This vulnerability affects an unknown code block of the component URL Format Handler. The impact remains unknown.

The weakness was released 03/05/2021. The advisory is available at chromereleases.googleblog.com. This vulnerability was named CVE-2021-21187. 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 03/28/2021). It is expected to see the exploit prices for this product increasing in the near future.

Upgrading to version 89.0.4389.72 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
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: Chrome 89.0.4389.72

Timelineinfo

12/21/2020 🔍
03/05/2021 +74 days 🔍
03/05/2021 +0 days 🔍
03/28/2021 +23 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: chromereleases.googleblog.com
Status: Confirmed

CVE: CVE-2021-21187 (🔍)
GCVE (CVE): GCVE-0-2021-21187
GCVE (VulDB): GCVE-100-170686

Entryinfo

Created: 03/05/2021 06:58
Updated: 03/28/2021 10:54
Changes: 03/05/2021 06:58 (38), 03/07/2021 08:13 (4), 03/28/2021 10:49 (1), 03/28/2021 10:54 (18)
Complete: 🔍
Cache ID: 216::103

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