CVE-2023-0435: Pyload ng Excessive Attack Surface Vulnerability

CRITICAL
Advisory Identifier: GHSA-6jmx-pv77-wm5w
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CVSS 9.8
CWE-1125
Published
Advisory Summary

CVE-2023-0435 is a CRITICAL (CVSS 9.8) excessive attack surface vulnerability (CWE-1125: Excessive Attack Surface) affecting Pyload ng libraries in the PyPI ecosystem. The issue involves excessive attack surface in pyload-ng. Remediation is available by upgrading affected packages to version 0.5.0b3.dev41.

CVE-2023-0435 at a Glance

CVE Identifier CVE-2023-0435
GHSA Identifier GHSA-6jmx-pv77-wm5w
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-1125: Excessive Attack Surface
Affected Product Pyload ng
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
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-2023-0435

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

pyload-ng fixed: 0.5.0b3.dev41 
pip install pyload-ng>=0.5.0b3.dev41
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 pyload-ng

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-0435, inspect your installed packages using pip:

pip show pyload-ng

Analyze the terminal output to locate any version of Pyload ng in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.5.0b3.dev41), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1125: Excessive Attack Surface, where the product has an attack surface whose quantitative measurement exceeds a desirable maximum. In Pyload ng, 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

Excessive Attack Surface in GitHub repository pyload/pyload prior to 0.5.0b3.dev41.

CVE-2023-0435 Affected Pyload ng Versions

1 component(s)
Fixed Versions:
0.5.0b3.dev41
Product / Package Ecosystem Affected Versions Fixed Version
pyload-ng
pypi/pyload-ng
PyPI
< 0.5.0b3.dev41
0.5.0b3.dev41

References

NVD — CVE-2023-0435 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-0435
Security Fix Commit FIX COMMIT
https://github.com/pyload/pyload/commit/431ea6f0371d748df66b344a05ca1a8e0310cff3
Pyload ng Source Repository REPOSITORY
https://github.com/pyload/pyload
huntr.dev/bounties/a3e32ad5-c... WEB
https://huntr.dev/bounties/a3e32ad5-caee-4f43-b10a-4a876d4e3f1d

Frequently Asked Questions

What is CVE-2023-0435?
CVE-2023-0435 is a security vulnerability in Pyload ng involving Excessive Attack Surface in pyload-ng under CWE-1125: Excessive Attack Surface.
Which Pyload ng versions are affected?
Affected versions include releases prior to 0.5.0b3.dev41 across affected packages: pyload-ng.
What version fixes CVE-2023-0435?
Upgrading to 0.5.0b3.dev41 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pyload-ng affected?
Yes, pyload-ng is affected in releases prior to 0.5.0b3.dev41. Upgrade your dependency to 0.5.0b3.dev41 or later.
What is the CVSS score of CVE-2023-0435?
CVE-2023-0435 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-0435?
CVE-2023-0435 is classified under CWE-1125: Excessive Attack Surface (The product has an attack surface whose quantitative measurement exceeds a desirable maximum.).
How can I check PyPI dependencies for CVE-2023-0435?
Run the dependency tree command: 'pip show pyload-ng'. 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-6jmx-pv77-wm5w",
  "modified" : "2023-02-01T09:20:27Z",
  "published" : "2023-01-23T00:30:26Z",
  "aliases" : [ "CVE-2023-0435" ],
  "summary" : "Excessive Attack Surface in pyload-ng",
  "details" : "Excessive Attack Surface in GitHub repository pyload/pyload prior to 0.5.0b3.dev41.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "pyload-ng"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.5.0b3.dev41"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-0435"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pyload/pyload/commit/431ea6f0371d748df66b344a05ca1a8e0310cff3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pyload/pyload"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/a3e32ad5-caee-4f43-b10a-4a876d4e3f1d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1125" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-23T20:40:31Z",
    "nvd_published_at" : "2023-01-22T22:15:00Z"
  }
}