CVE-2024-23329: Changedetection.io Changedetection.io API Endpoint Is Not Vulnerability

LOW
Advisory Identifier: GHSA-hcvp-2cc7-jrwr
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CVSS 3.7
CWE-863
Published
Advisory Summary

CVE-2024-23329 is a LOW (CVSS 3.7) changedetection.io api endpoint is not vulnerability (CWE-863: Incorrect Authorization) affecting Changedetection.io libraries in the PyPI ecosystem. The issue involves changedetection.io api endpoint is not secured with api token. Remediation is available by upgrading affected packages to version 0.45.13.

CVE-2024-23329 at a Glance

CVE Identifier CVE-2024-23329
GHSA Identifier GHSA-hcvp-2cc7-jrwr
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-863: Incorrect Authorization
Affected Product Changedetection.io
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 3.7

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

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
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-2024-23329

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

changedetection.io fixed: 0.45.13 
pip install changedetection.io>=0.45.13
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 changedetection.io

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-23329, inspect your installed packages using pip:

pip show changedetection.io

Analyze the terminal output to locate any version of Changedetection.io in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.45.13), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. In Changedetection.io, 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

### Summary API endpoint `/api/v1/watch/<uuid>/history` can be accessed by any unauthorized user. ### Details WatchHistory resource does not have `@auth.check_token` annotation, which means it can be accessed without providing `x-api-key` header. https://github.com/dgtlmoon/changedetection.io/blob/9510345e01ea8e308c339163d8e8b030ce5ac7f1/changedetectionio/api/api_v1.py#L129-L156 ### PoC 1. Get list of watch with `x-api-key`: ```sh $ curl -H "x-api-key: apikeyhere" http://localhost:5000/api/v1/watch {"uuid": ...} ``` 2. Call for history of snapshots without `x-api-key`. Expected - 401/403 error. Actual - list of snapshots is listed. ```sh $ curl http://localhost:5000/api/v1/watch/uuid/history {"timestamp": "/path/to/snapshot.txt"} ``` ### Impact Anybody can check one's watch history. However, because unauthorized party first needs to know watch UUID, and the watch history endpoint itself returns only paths to the snapshot on the server, an impact on users' data privacy is minimal.

CVE-2024-23329 Affected Changedetection.io Versions

1 component(s)
Fixed Versions:
0.45.13
Product / Package Ecosystem Affected Versions Fixed Version
changedetection.io
pypi/changedetection.io
PyPI
≥ 0.39.14
< 0.45.13
0.45.13

References

GitHub Advisory / Wiki ADVISORY
https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-hcvp-2cc7-jrwr
NVD — CVE-2024-23329 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-23329
Security Fix Commit FIX COMMIT
https://github.com/dgtlmoon/changedetection.io/commit/402f1e47e78ecd155b1e90f30cce424ff7763e0f
Changedetection.io Source Repository REPOSITORY
https://github.com/dgtlmoon/changedetection.io
Changedetection.io Source Repository REPOSITORY
https://github.com/dgtlmoon/changedetection.io/blob/9510345e01ea8e308c339163d8e8b030ce5ac7f1/changedetectionio/api/api_v1.py#L129-L156
Changedetection.io Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/changedetection-io/PYSEC-2024-15.yaml

Frequently Asked Questions

What is CVE-2024-23329?
CVE-2024-23329 is a security vulnerability in Changedetection.io involving changedetection.io API endpoint is not secured with API token under CWE-863: Incorrect Authorization.
Which Changedetection.io versions are affected?
Affected versions include releases prior to 0.45.13 across affected packages: changedetection.io.
What version fixes CVE-2024-23329?
Upgrading to 0.45.13 (or the latest patched release for your respective branch) resolves the vulnerability.
Is changedetection.io affected?
Yes, changedetection.io is affected in releases prior to 0.45.13. Upgrade your dependency to 0.45.13 or later.
What is the CVSS score of CVE-2024-23329?
CVE-2024-23329 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2024-23329?
CVE-2024-23329 is classified under CWE-863: Incorrect Authorization (The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.).
How can I check PyPI dependencies for CVE-2024-23329?
Run the dependency tree command: 'pip show changedetection.io'. 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-hcvp-2cc7-jrwr",
  "modified" : "2024-09-13T17:38:17Z",
  "published" : "2024-01-23T12:50:59Z",
  "aliases" : [ "CVE-2024-23329" ],
  "summary" : "changedetection.io API endpoint is not secured with API token",
  "details" : "### Summary\n\nAPI endpoint `/api/v1/watch/<uuid>/history` can be accessed by any unauthorized user.\n\n### Details\n\nWatchHistory resource does not have `@auth.check_token` annotation, which means it can be accessed without providing `x-api-key` header.\n\nhttps://github.com/dgtlmoon/changedetection.io/blob/9510345e01ea8e308c339163d8e8b030ce5ac7f1/changedetectionio/api/api_v1.py#L129-L156\n\n### PoC\n\n1. Get list of watch with `x-api-key`:\n```sh\n$ curl -H \"x-api-key: apikeyhere\" http://localhost:5000/api/v1/watch\n{\"uuid\": ...}\n```\n2. Call for history of snapshots without `x-api-key`. Expected - 401/403 error. Actual - list of snapshots is listed.\n```sh\n$ curl http://localhost:5000/api/v1/watch/uuid/history\n{\"timestamp\": \"/path/to/snapshot.txt\"}\n```\n\n### Impact\n\nAnybody can check one's watch history. However, because unauthorized party first needs to know watch UUID, and the watch history endpoint itself returns only paths to the snapshot on the server, an impact on users' data privacy is minimal.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "changedetection.io"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.39.14"
      }, {
        "fixed" : "0.45.13"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.45.12"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-hcvp-2cc7-jrwr"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-23329"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dgtlmoon/changedetection.io/commit/402f1e47e78ecd155b1e90f30cce424ff7763e0f"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dgtlmoon/changedetection.io"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dgtlmoon/changedetection.io/blob/9510345e01ea8e308c339163d8e8b030ce5ac7f1/changedetectionio/api/api_v1.py#L129-L156"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/changedetection-io/PYSEC-2024-15.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-863" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-23T12:50:59Z",
    "nvd_published_at" : "2024-01-19T20:15:13Z"
  }
}