CVE-2022-4018: Rdiffweb Rdiffweb Vulnerable To Missing Authentication Vulnerability

LOW
Advisory Identifier: GHSA-4wph-9vrm-6v3w
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CVSS 4.3
CWE-306
Published
Advisory Summary

CVE-2022-4018 is a LOW (CVSS 4.3) rdiffweb vulnerable to missing authentication vulnerability (CWE-306: Missing Authentication for Critical Function) affecting Rdiffweb libraries in the PyPI ecosystem. The issue involves rdiffweb vulnerable to missing authentication for critical function. Remediation is available by upgrading affected packages to version 2.5.0a6.

CVE-2022-4018 at a Glance

CVE Identifier CVE-2022-4018
GHSA Identifier GHSA-4wph-9vrm-6v3w
Severity LOW
CVSS v3.1 Base Score 4.3
CWE Classification CWE-306: Missing Authentication for Critical Function
Affected Product Rdiffweb
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 4.3

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:U/C:N/I:N/A:L).

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

How to Fix CVE-2022-4018

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

rdiffweb fixed: 2.5.0a6 
pip install rdiffweb>=2.5.0a6
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 rdiffweb

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-4018, inspect your installed packages using pip:

pip show rdiffweb

Analyze the terminal output to locate any version of Rdiffweb in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.5.0a6), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-306: Missing Authentication for Critical Function, where the product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. In Rdiffweb, 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

Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.

CVE-2022-4018 Affected Rdiffweb Versions

1 component(s)
Fixed Versions:
2.5.0a6
Product / Package Ecosystem Affected Versions Fixed Version
rdiffweb
pypi/rdiffweb
PyPI
< 2.5.0a6
2.5.0a6

References

NVD — CVE-2022-4018 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-4018
Security Fix Commit FIX COMMIT
https://github.com/ikus060/rdiffweb/commit/f2a32f2a9f3fb8be1a9432ac3d81d3aacdb13095
Rdiffweb Source Repository REPOSITORY
https://github.com/ikus060/rdiffweb
Rdiffweb Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/rdiffweb/PYSEC-2022-43001.yaml
huntr.dev/bounties/5340c2f6-0... WEB
https://huntr.dev/bounties/5340c2f6-0252-40f6-8929-cca5d64958a5

Frequently Asked Questions

What is CVE-2022-4018?
CVE-2022-4018 is a security vulnerability in Rdiffweb involving Rdiffweb vulnerable to Missing Authentication for Critical Function under CWE-306: Missing Authentication for Critical Function.
Which Rdiffweb versions are affected?
Affected versions include releases prior to 2.5.0a6 across affected packages: rdiffweb.
What version fixes CVE-2022-4018?
Upgrading to 2.5.0a6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is rdiffweb affected?
Yes, rdiffweb is affected in releases prior to 2.5.0a6. Upgrade your dependency to 2.5.0a6 or later.
What is the CVSS score of CVE-2022-4018?
CVE-2022-4018 has a CVSS v3.1 base score of 4.3 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2022-4018?
CVE-2022-4018 is classified under CWE-306: Missing Authentication for Critical Function (The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.).
How can I check PyPI dependencies for CVE-2022-4018?
Run the dependency tree command: 'pip show rdiffweb'. 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-4wph-9vrm-6v3w",
  "modified" : "2024-10-26T18:41:06Z",
  "published" : "2022-11-16T19:00:32Z",
  "aliases" : [ "CVE-2022-4018" ],
  "summary" : "Rdiffweb vulnerable to Missing Authentication for Critical Function",
  "details" : "Missing Authentication for Critical Function in GitHub repository ikus060/rdiffweb prior to 2.5.0a6.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "rdiffweb"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.5.0a6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-4018"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ikus060/rdiffweb/commit/f2a32f2a9f3fb8be1a9432ac3d81d3aacdb13095"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ikus060/rdiffweb"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/rdiffweb/PYSEC-2022-43001.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/5340c2f6-0252-40f6-8929-cca5d64958a5"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-306" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-11-22T00:18:15Z",
    "nvd_published_at" : "2022-11-16T13:15:00Z"
  }
}