CVE-2022-24776: Flask AppBuilder Open Redirect Vulnerability

MODERATE
Advisory Identifier: GHSA-2ccw-7px8-vmpf
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CVSS 6.1
CWE-601
Published
Advisory Summary

CVE-2022-24776 is a MODERATE (CVSS 6.1) open redirect vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Flask AppBuilder libraries in the PyPI ecosystem. The issue involves open redirect in flask-appbuilder. Remediation is available by upgrading affected packages to version 3.4.5.

CVE-2022-24776 at a Glance

CVE Identifier CVE-2022-24776
GHSA Identifier GHSA-2ccw-7px8-vmpf
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Flask AppBuilder
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2022-24776

To remediate this vulnerability, upgrade all affected Flask AppBuilder dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Flask-AppBuilder fixed: 3.4.5 
pip install Flask-AppBuilder>=3.4.5
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show Flask-AppBuilder

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-24776, inspect your installed packages using pip:

pip show Flask-AppBuilder

Analyze the terminal output to locate any version of Flask AppBuilder in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.4.5), your application is affected.

Note: The pip show Flask-AppBuilder command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Flask AppBuilder, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 3.4.5 contain an open redirect vulnerability when using the database authentication login page. There are no known workarounds. Users are recommended to upgrade to version 3.4.5 or later. ### For more information If you have any questions or comments about this advisory: * Open an issue in [Flask-AppBuilder](https://github.com/dpgaspar/Flask-AppBuilder)

CVE-2022-24776 Affected Flask AppBuilder Versions

1 component(s)
Fixed Versions:
3.4.5
Product / Package Ecosystem Affected Versions Fixed Version
Flask-AppBuilder
pypi/Flask-AppBuilder
PyPI
< 3.4.5
3.4.5

References

GitHub Advisory / Wiki ADVISORY
https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-2ccw-7px8-vmpf
NVD — CVE-2022-24776 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-24776
Flask AppBuilder Source Repository REPOSITORY
https://github.com/dpgaspar/Flask-AppBuilder/pull/1804
Flask AppBuilder Source Repository REPOSITORY
https://github.com/dpgaspar/Flask-AppBuilder/pull/1804/commits/5214d975ebad2ff32057443d2cc20fef1c04d0ea
Flask AppBuilder Source Repository REPOSITORY
https://github.com/dpgaspar/Flask-AppBuilder
Flask AppBuilder Release RELEASE
https://github.com/dpgaspar/Flask-AppBuilder/releases/tag/v3.4.5

Frequently Asked Questions

What is CVE-2022-24776?
CVE-2022-24776 is a security vulnerability in Flask AppBuilder involving Open Redirect in Flask-AppBuilder under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Flask AppBuilder versions are affected?
Affected versions include releases prior to 3.4.5 across affected packages: Flask-AppBuilder.
What version fixes CVE-2022-24776?
Upgrading to 3.4.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Flask-AppBuilder affected?
Yes, Flask-AppBuilder is affected in releases prior to 3.4.5. Upgrade your dependency to 3.4.5 or later.
What is the CVSS score of CVE-2022-24776?
CVE-2022-24776 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2022-24776?
CVE-2022-24776 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check PyPI dependencies for CVE-2022-24776?
Run the dependency tree command: 'pip show Flask-AppBuilder'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-2ccw-7px8-vmpf",
  "modified" : "2022-04-07T00:09:48Z",
  "published" : "2022-03-25T19:27:39Z",
  "aliases" : [ "CVE-2022-24776" ],
  "summary" : "Open Redirect in Flask-AppBuilder",
  "details" : "Flask-AppBuilder is an application development framework built on top of Flask. Versions prior to 3.4.5 contain an open redirect vulnerability when using the database authentication login page. There are no known workarounds. Users are recommended to upgrade to version 3.4.5 or later.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Flask-AppBuilder](https://github.com/dpgaspar/Flask-AppBuilder)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Flask-AppBuilder"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.4.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-2ccw-7px8-vmpf"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-24776"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder/pull/1804"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder/pull/1804/commits/5214d975ebad2ff32057443d2cc20fef1c04d0ea"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder/releases/tag/v3.4.5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-03-25T19:27:39Z",
    "nvd_published_at" : "2022-03-24T20:15:00Z"
  }
}