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Flask-AppBuilder Has No Rate Limiting on Login AUTH DB

High severity GitHub Reviewed Published Apr 10, 2023 in dpgaspar/Flask-AppBuilder • Updated Apr 19, 2023

Package

pip Flask-AppBuilder (pip)

Affected versions

< 4.3.0

Patched versions

4.3.0

Description

Impact

Lack of rate limiting will allow an attacker to brute-force user credentials.

Patches

Ability to enable rate limiting on Flask-AppBuilder >= 4.3.0. Use AUTH_RATE_LIMITED = True and RATELIMIT_ENABLED = True set the limit itself by using AUTH_RATE_LIMIT. Will apply only to database authentication.

Workarounds

Implement rate limiting using a reverse proxy or other strategies.

References

@dpgaspar dpgaspar published to dpgaspar/Flask-AppBuilder Apr 10, 2023
Published to the GitHub Advisory Database Apr 10, 2023
Reviewed Apr 10, 2023
Published by the National Vulnerability Database Apr 10, 2023
Last updated Apr 19, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.175%
(56th percentile)

Weaknesses

CVE ID

CVE-2023-29005

GHSA ID

GHSA-9hcr-9hcv-x6pv

Source code

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