CVE-2023-23930: Vantage6 Pickle Serialization Vulnerable To Deserialization Vulnerability

HIGH
Advisory Identifier: GHSA-5m22-cfq9-86x6
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CVSS 7.2
CWE-502
Published
Advisory Summary

CVE-2023-23930 is a HIGH (CVSS 7.2) pickle serialization vulnerable to deserialization vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Vantage6 libraries in the PyPI ecosystem. The issue involves pickle serialization vulnerable to deserialization of untrusted data. Remediation is available by upgrading affected packages to version 4.0.2.

CVE-2023-23930 at a Glance

CVE Identifier CVE-2023-23930
GHSA Identifier GHSA-5m22-cfq9-86x6
Severity HIGH
CVSS v3.1 Base Score 7.2
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Vantage6
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.2

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:H/I:H/A:H).

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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2023-23930

To remediate this vulnerability, upgrade all affected Vantage6 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

vantage6 fixed: 4.0.2 
pip install vantage6>=4.0.2
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 vantage6

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-23930, inspect your installed packages using pip:

pip show vantage6

Analyze the terminal output to locate any version of Vantage6 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.0.2), your application is affected.

Note: The pip show vantage6 command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Vantage6, 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

### What We are using pickle as default serialization module but that has known security issues (see e.g. https://medium.com/ochrona/python-pickle-is-notoriously-insecure-d6651f1974c9). In summary, it is not advisable to open Pickles that you create yourself locally. In vantage6, algorithms use pickles to send aggregated data around and to pack algorithm input or output. All of the Python algorithms that use the wrappers with default serialization are therefore vulnerable to this issue. Solution: we should use JSON instead ### Impact All users of vantage6 that post tasks with algorithms that use the default serialization. The default serialization is used by default with all algorithm wrappers. ### Patches Not yet ### Workarounds Specify JSON serialization

CVE-2023-23930 Affected Vantage6 Versions

1 component(s)
Fixed Versions:
4.0.2
Product / Package Ecosystem Affected Versions Fixed Version
vantage6
pypi/vantage6
PyPI
< 4.0.2
4.0.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/vantage6/vantage6/security/advisories/GHSA-5m22-cfq9-86x6
NVD — CVE-2023-23930 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23930
Security Fix Commit FIX COMMIT
https://github.com/vantage6/vantage6/commit/e62f03bacf2247bd59eed217e2e7338c3a01a5f0
Vantage6 Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/vantage6/PYSEC-2023-196.yaml
Vantage6 Source Repository REPOSITORY
https://github.com/vantage6/vantage6
Vantage6 Source Repository REPOSITORY
https://github.com/vantage6/vantage6/blob/0682c4288f43fee5bcc72dc448cdd99bd7e57f76/docs/release_notes.rst#400
medium.com/ochrona/python-pick... WEB
https://medium.com/ochrona/python-pickle-is-notoriously-insecure-d6651f1974c9

Frequently Asked Questions

What is CVE-2023-23930?
CVE-2023-23930 is a security vulnerability in Vantage6 involving Pickle serialization vulnerable to Deserialization of Untrusted Data under CWE-502: Deserialization of Untrusted Data.
Which Vantage6 versions are affected?
Affected versions include releases prior to 4.0.2 across affected packages: vantage6.
What version fixes CVE-2023-23930?
Upgrading to 4.0.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is vantage6 affected?
Yes, vantage6 is affected in releases prior to 4.0.2. Upgrade your dependency to 4.0.2 or later.
What is the CVSS score of CVE-2023-23930?
CVE-2023-23930 has a CVSS v3.1 base score of 7.2 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-23930?
CVE-2023-23930 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check PyPI dependencies for CVE-2023-23930?
Run the dependency tree command: 'pip show vantage6'. 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-5m22-cfq9-86x6",
  "modified" : "2024-11-18T23:11:28Z",
  "published" : "2023-10-13T19:25:39Z",
  "aliases" : [ "CVE-2023-23930" ],
  "summary" : "Pickle serialization vulnerable to Deserialization of Untrusted Data",
  "details" : "### What\nWe are using pickle as default serialization module but that has known security issues (see e.g. https://medium.com/ochrona/python-pickle-is-notoriously-insecure-d6651f1974c9). \n\nIn summary, it is not advisable to open Pickles that you create yourself locally. In vantage6, algorithms use pickles to send aggregated data around and to pack algorithm input or output. All of the Python algorithms that use the wrappers with default serialization are therefore vulnerable to this issue.\n\nSolution: we should use JSON instead\n\n### Impact\nAll users of vantage6 that post tasks with algorithms that use the default serialization. The default serialization is used by default with all algorithm wrappers.\n\n### Patches\nNot yet\n\n### Workarounds\nSpecify JSON serialization\n\n",
  "severity" : [ {
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    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
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    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
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      "name" : "vantage6"
    },
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      "type" : "ECOSYSTEM",
      "events" : [ {
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  } ],
  "references" : [ {
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  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-23930"
  }, {
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    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/vantage6/PYSEC-2023-196.yaml"
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  }, {
    "type" : "WEB",
    "url" : "https://medium.com/ochrona/python-pickle-is-notoriously-insecure-d6651f1974c9"
  } ],
  "database_specific" : {
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    "severity" : "HIGH",
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    "github_reviewed_at" : "2023-10-13T19:25:39Z",
    "nvd_published_at" : "2023-10-11T18:15:10Z"
  }
}