CVE-2023-34110: Flask AppBuilder Flask-AppBuilder Vulnerable To Possible Disclosure Vulnerability

MODERATE
Advisory Identifier: GHSA-jhpr-j7cq-3jp3
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CVSS 2.7
CWE-209
Published
Advisory Summary

CVE-2023-34110 is a MODERATE (CVSS 2.7) flask-appbuilder vulnerable to possible disclosure vulnerability (CWE-209: Generation of Error Message Containing Sensitive Information) affecting Flask AppBuilder libraries in the PyPI ecosystem. The issue involves flask-appbuilder vulnerable to possible disclosure of sensitive information on user error. Remediation is available by upgrading affected packages to version 4.3.2.

CVE-2023-34110 at a Glance

CVE Identifier CVE-2023-34110
GHSA Identifier GHSA-jhpr-j7cq-3jp3
Severity MODERATE
CVSS v3.1 Base Score 2.7
CWE Classification CWE-209: Generation of Error Message Containing Sensitive Information
Affected Product Flask AppBuilder
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 2.7

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

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

How to Fix CVE-2023-34110

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: 4.3.2 
pip install Flask-AppBuilder>=4.3.2
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-2023-34110, 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 4.3.2), 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-209: Generation of Error Message Containing Sensitive Information, where the product generates an error message that includes sensitive information about its environment, users, or associated data. 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

### Impact An authenticated malicious actor with Admin privileges, could by adding a special character on the add, edit User forms trigger a database error, this error is surfaced back to this actor on the UI. On certain database engines this error can include the entire user row including the pbkdf2:sha256 hashed password. ### Patches Fixed on 4.3.2

CVE-2023-34110 Affected Flask AppBuilder Versions

1 component(s)
Fixed Versions:
4.3.2
Product / Package Ecosystem Affected Versions Fixed Version
Flask-AppBuilder
pypi/Flask-AppBuilder
PyPI
< 4.3.2
4.3.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-jhpr-j7cq-3jp3
NVD — CVE-2023-34110 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-34110
Flask AppBuilder Source Repository REPOSITORY
https://github.com/dpgaspar/Flask-AppBuilder/pull/2045
Security Fix Commit FIX COMMIT
https://github.com/dpgaspar/Flask-AppBuilder/commit/ae25ad4c87a9051ebe4a4e8f02aee73232642626
Flask AppBuilder Source Repository REPOSITORY
https://github.com/dpgaspar/Flask-AppBuilder
Flask AppBuilder Release RELEASE
https://github.com/dpgaspar/Flask-AppBuilder/releases/tag/v4.3.2
Flask AppBuilder Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/flask-appbuilder/PYSEC-2023-94.yaml

Frequently Asked Questions

What is CVE-2023-34110?
CVE-2023-34110 is a security vulnerability in Flask AppBuilder involving Flask-AppBuilder vulnerable to possible disclosure of sensitive information on user error under CWE-209: Generation of Error Message Containing Sensitive Information.
Which Flask AppBuilder versions are affected?
Affected versions include releases prior to 4.3.2 across affected packages: Flask-AppBuilder.
What version fixes CVE-2023-34110?
Upgrading to 4.3.2 (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 4.3.2. Upgrade your dependency to 4.3.2 or later.
What is the CVSS score of CVE-2023-34110?
CVE-2023-34110 has a CVSS v3.1 base score of 2.7 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2023-34110?
CVE-2023-34110 is classified under CWE-209: Generation of Error Message Containing Sensitive Information (The product generates an error message that includes sensitive information about its environment, users, or associated data.).
How can I check PyPI dependencies for CVE-2023-34110?
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-jhpr-j7cq-3jp3",
  "modified" : "2024-11-18T16:26:30Z",
  "published" : "2023-06-22T19:59:03Z",
  "aliases" : [ "CVE-2023-34110" ],
  "summary" : "Flask-AppBuilder vulnerable to possible disclosure of sensitive information on user error",
  "details" : "### Impact\nAn authenticated malicious actor with Admin privileges, could by adding a special character on the add, edit User forms trigger a database error, this error is surfaced back to this actor on the UI. On certain database engines this error can include the entire user row including the pbkdf2:sha256 hashed password.\n \n### Patches\nFixed on 4.3.2\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Flask-AppBuilder"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.3.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-jhpr-j7cq-3jp3"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-34110"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder/pull/2045"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder/commit/ae25ad4c87a9051ebe4a4e8f02aee73232642626"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dpgaspar/Flask-AppBuilder/releases/tag/v4.3.2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/flask-appbuilder/PYSEC-2023-94.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-209" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-06-22T19:59:03Z",
    "nvd_published_at" : "2023-06-22T23:15:09Z"
  }
}