Flask-AppBuilder before v4.1.3 allows inference of sensitive information through query strings

CVE-2022-31177 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Impact

An authenticated Admin user could craft HTTP requests to filter users by their salted and hashed passwords strings. These filters could be made by using partial hashed password strings. The response would not include the hashed passwords, but an attacker could infer partial password hashes and their respective users.

Only when using AUTH_DB database authentication option.

Patches

Fixed on 4.1.3

For more information

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Basic information

Type
reviewed
Severity
low
Advisory on GitHub
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Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2022-07-29 22:28:12 UTC
Updated
2025-03-07 19:09:40 UTC
GitHub reviewed
2022-07-29 22:28:12 UTC
NVD published
2022-08-01 19:15:00 UTC

EPSS Score

Score Percentile
0.34% 56.50%

CVSS Scores

Base score Version Severity Vector
2.7 3.1 —
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

Type Value
GHSA GHSA-32ff-4g79-vgfc ↗
CVE CVE-2022-31177 ↗

CWEs

CWE id Name
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-916 Use of Password Hash With Insufficient Computational Effort

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
pip Flask-AppBuilder < 4.1.3 4.1.3 —

References

cvelogic Threat Intelligence