GreenBrowser up to 1.1 Access Control improper authorization in handler for custom url scheme

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability was found in GreenBrowser up to 1.1. It has been declared as critical. This impacts an unknown function of the component Access Control. Such manipulation leads to improper authorization in handler for custom url scheme. This vulnerability is uniquely identified as CVE-2020-11000. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in GreenBrowser up to 1.1 and classified as critical. Affected by this issue is some unknown processing of the component Access Control. The manipulation with an unknown input leads to a improper authorization in handler for custom url scheme vulnerability. Using CWE to declare the problem leads to CWE-939. The product uses a handler for a custom URL scheme, but it does not properly restrict which actors can invoke the handler using the scheme. Impacted is confidentiality, integrity, and availability. CVE summarizes:

GreenBrowser before version 1.2 has a vulnerability where apps that rely on URL Parsing to verify that a given URL is pointing to a trust server may be susceptible to many different ways to get URL parsing and verification wrong, which allows an attacker to circumvent the access control. This problem has been patched in version 1.2.

The weakness was disclosed 04/08/2020 (GitHub Repository). The advisory is available at github.com. This vulnerability is handled as CVE-2020-11000 since 03/30/2020. The attack may be launched remotely. Required for exploitation is a simple authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 1.2 eliminates this vulnerability.

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Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.6

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

NVD Base Score: 5.7
NVD Vector: 🔍

CNA Base Score: 5.7
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authorization in handler for custom url scheme
CWE: CWE-939 / CWE-285 / 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: GreenBrowser 1.2
Patch: github.com

Timelineinfo

03/30/2020 🔍
04/08/2020 +9 days 🔍
04/09/2020 +1 days 🔍
05/09/2025 +1856 days 🔍

Sourcesinfo

Advisory: 5e257e0db4f2a08cf05f00756e5961ee873e481b
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-11000 (🔍)
GCVE (CVE): GCVE-0-2020-11000
GCVE (VulDB): GCVE-100-152942

Entryinfo

Created: 04/09/2020 09:39
Updated: 05/09/2025 18:56
Changes: 04/09/2020 09:39 (38), 04/09/2020 09:44 (11), 10/09/2020 09:23 (1), 05/17/2024 15:46 (18), 05/17/2024 15:52 (18), 05/09/2025 18:56 (7)
Complete: 🔍
Cache ID: 216::103

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