CVE-2022-43685: Ckan CKAN Contains Improper Authentication Leading Vulnerability

HIGH
Advisory Identifier: GHSA-m2xp-jxfg-qq6g
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CVSS 8.8
CWE-287 CWE-862
Published
Advisory Summary

CVE-2022-43685 is a HIGH (CVSS 8.8) ckan contains improper authentication leading vulnerability (CWE-287: Improper Authentication) affecting Ckan libraries in the PyPI ecosystem. The issue involves ckan contains improper authentication leading to account takeover. Remediation is available by upgrading affected packages to version 2.9.7.

CVE-2022-43685 at a Glance

CVE Identifier CVE-2022-43685
GHSA Identifier GHSA-m2xp-jxfg-qq6g
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-287: Improper Authentication
Affected Product Ckan
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

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

How to Fix CVE-2022-43685

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

ckan fixed: 2.9.7 
pip install ckan>=2.9.7
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 ckan

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-43685, inspect your installed packages using pip:

pip show ckan

Analyze the terminal output to locate any version of Ckan in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.9.7), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Ckan, 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

CKAN through 2.9.6 account takeovers by unauthenticated users when an existing user id is sent via an HTTP POST request. This allows a user to take over an existing account including superuser accounts.

CVE-2022-43685 Affected Ckan Versions

1 component(s)
Fixed Versions:
2.9.7
Product / Package Ecosystem Affected Versions Fixed Version
ckan
pypi/ckan
PyPI
< 2.9.7
2.9.7

References

NVD — CVE-2022-43685 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-43685
Ckan Security Information SECURITY
https://ckan.org
Ckan Release RELEASE
https://ckan.org/blog/get-latest-patch-releases-your-ckan-site-october-2022
Ckan Source Repository REPOSITORY
https://github.com/ckan/ckan
Ckan Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/ckan/PYSEC-2022-42987.yaml

Frequently Asked Questions

What is CVE-2022-43685?
CVE-2022-43685 is a security vulnerability in Ckan involving CKAN contains Improper Authentication leading to account takeover under CWE-287: Improper Authentication.
Which Ckan versions are affected?
Affected versions include releases prior to 2.9.7 across affected packages: ckan.
What version fixes CVE-2022-43685?
Upgrading to 2.9.7 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ckan affected?
Yes, ckan is affected in releases prior to 2.9.7. Upgrade your dependency to 2.9.7 or later.
What is the CVSS score of CVE-2022-43685?
CVE-2022-43685 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2022-43685?
CVE-2022-43685 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check PyPI dependencies for CVE-2022-43685?
Run the dependency tree command: 'pip show ckan'. 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-m2xp-jxfg-qq6g",
  "modified" : "2025-04-29T13:14:27Z",
  "published" : "2022-11-22T03:30:56Z",
  "aliases" : [ "CVE-2022-43685" ],
  "summary" : "CKAN contains Improper Authentication leading to account takeover",
  "details" : "CKAN through 2.9.6 account takeovers by unauthenticated users when an existing user id is sent via an HTTP POST request. This allows a user to take over an existing account including superuser accounts.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "ckan"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.9.7"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-43685"
  }, {
    "type" : "WEB",
    "url" : "https://ckan.org"
  }, {
    "type" : "WEB",
    "url" : "https://ckan.org/blog/get-latest-patch-releases-your-ckan-site-october-2022"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ckan/ckan"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/ckan/PYSEC-2022-42987.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287", "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-02-02T16:59:55Z",
    "nvd_published_at" : "2022-11-22T01:15:00Z"
  }
}