Flask-AppBuilder up to 3.3.3 REST API improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Flask-AppBuilder up to 3.3.3. This vulnerability affects unknown code of the component REST API. Such manipulation leads to improper authentication. This vulnerability is documented as CVE-2021-41265. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Flask-AppBuilder up to 3.3.3 and classified as critical. Affected by this issue is an unknown functionality of the component REST API. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.

The weakness was released 12/09/2021 as GHSA-m3rf-7m4w-r66q. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-41265 since 09/15/2021. There are neither technical details nor an exploit publicly available.

Upgrading to version 3.3.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch eba517aab121afa3f3f2edb011ec6bc4efd61fbc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 8.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.1
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 authentication
CWE: CWE-287
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: Flask-AppBuilder 3.3.4
Patch: eba517aab121afa3f3f2edb011ec6bc4efd61fbc

Timelineinfo

09/15/2021 🔍
12/09/2021 +85 days 🔍
12/09/2021 +0 days 🔍
03/07/2025 +1184 days 🔍

Sourcesinfo

Advisory: GHSA-m3rf-7m4w-r66q
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41265 (🔍)
GCVE (CVE): GCVE-0-2021-41265
GCVE (VulDB): GCVE-100-187916

Entryinfo

Created: 12/09/2021 22:29
Updated: 03/07/2025 17:17
Changes: 12/09/2021 22:29 (52), 12/15/2021 13:35 (2), 03/07/2025 17:17 (33)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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