CVE-2022-31507: Ganga Path Traversal Vulnerability

CRITICAL
Advisory Identifier: GHSA-7488-6x3r-23w5
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CVSS 9.3
CWE-22
Published
Advisory Summary

CVE-2022-31507 is a CRITICAL (CVSS 9.3) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Ganga libraries in the PyPI ecosystem. The issue involves ganga allows absolute path traversal. Remediation is available by upgrading affected packages to version 8.5.10.

CVE-2022-31507 at a Glance

CVE Identifier CVE-2022-31507
GHSA Identifier GHSA-7488-6x3r-23w5
Severity CRITICAL
CVSS v3.1 Base Score 9.3
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Ganga
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 9.3

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

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

How to Fix CVE-2022-31507

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

ganga fixed: 8.5.10 
pip install ganga>=8.5.10
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 ganga

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-31507, inspect your installed packages using pip:

pip show ganga

Analyze the terminal output to locate any version of Ganga in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.5.10), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Ganga, 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

The ganga-devs/ganga repository before 8.5.10 on GitHub allows absolute path traversal because the Flask `send_file` function is used unsafely.

CVE-2022-31507 Affected Ganga Versions

1 component(s)
Fixed Versions:
8.5.10
Product / Package Ecosystem Affected Versions Fixed Version
ganga
pypi/ganga
PyPI
< 8.5.10
8.5.10

References

NVD — CVE-2022-31507 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-31507
Ganga Source Repository REPOSITORY
https://github.com/github/securitylab/issues/669#issuecomment-1117265726
Security Fix Commit FIX COMMIT
https://github.com/ganga-devs/ganga/commit/730e7aba192407d35eb37dd7938d49071124be8c
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-7488-6x3r-23w5
Ganga Source Repository REPOSITORY
https://github.com/ganga-devs/ganga
Ganga Release RELEASE
https://github.com/ganga-devs/ganga/releases/tag/8.5.10
Ganga Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/ganga/PYSEC-2022-225.yaml

Frequently Asked Questions

What is CVE-2022-31507?
CVE-2022-31507 is a security vulnerability in Ganga involving Ganga allows absolute path traversal under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Ganga versions are affected?
Affected versions include releases prior to 8.5.10 across affected packages: ganga.
What version fixes CVE-2022-31507?
Upgrading to 8.5.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ganga affected?
Yes, ganga is affected in releases prior to 8.5.10. Upgrade your dependency to 8.5.10 or later.
What is the CVSS score of CVE-2022-31507?
CVE-2022-31507 has a CVSS v3.1 base score of 9.3 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L.
What CWE is associated with CVE-2022-31507?
CVE-2022-31507 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check PyPI dependencies for CVE-2022-31507?
Run the dependency tree command: 'pip show ganga'. 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-7488-6x3r-23w5",
  "modified" : "2024-09-20T20:08:40Z",
  "published" : "2022-07-13T15:43:03Z",
  "aliases" : [ "CVE-2022-31507" ],
  "summary" : "Ganga allows absolute path traversal",
  "details" : "The ganga-devs/ganga repository before 8.5.10 on GitHub allows absolute path traversal because the Flask `send_file` function is used unsafely.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:L/SC:H/SI:N/SA:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "ganga"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.5.10"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-31507"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/github/securitylab/issues/669#issuecomment-1117265726"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ganga-devs/ganga/commit/730e7aba192407d35eb37dd7938d49071124be8c"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-7488-6x3r-23w5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ganga-devs/ganga"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/ganga-devs/ganga/releases/tag/8.5.10"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/ganga/PYSEC-2022-225.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-07-13T15:43:03Z",
    "nvd_published_at" : "2022-07-11T01:15:00Z"
  }
}