CVE-2024-43795: Openc3 Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-vfj8-5pj7-2f9g
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2024-43795 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Openc3 libraries in the RubyGems ecosystem. The issue involves openc3 cross-site scripting in login functionality (`ghsl-2024-128`). Remediation is available by upgrading affected packages to version 5.19.0.

CVE-2024-43795 at a Glance

CVE Identifier CVE-2024-43795
GHSA Identifier GHSA-vfj8-5pj7-2f9g
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Openc3
Package Ecosystem RubyGems
Published Date
Last Updated

Security Impact

CVSS: 6.1

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

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

How to Fix CVE-2024-43795

To remediate this vulnerability, upgrade all affected Openc3 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

openc3 fixed: 5.19.0 
Upgrade openc3 to 5.19.0
@openc3/tool-common fixed: 5.19.0 
npm install @openc3/tool-common@5.19.0
openc3 fixed: 5.19.0 
pip install openc3>=5.19.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for openc3

How to Check if You Are Affected

To determine whether your application is affected by CVE-2024-43795, inspect your project dependencies for Openc3:

inspect dependencies for openc3

Analyze the terminal output to locate any version of Openc3 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.19.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Openc3, 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 The login functionality contains a reflected cross-site scripting (XSS) vulnerability. Note: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition ### Impact This issue may lead up to Remote Code Execution (RCE).

CVE-2024-43795 Affected Openc3 Versions

3 component(s)
Fixed Versions:
5.19.0
Product / Package Ecosystem Affected Versions Fixed Version
openc3
gem/openc3
RubyGems
< 5.19.0
5.19.0
@openc3/tool-common
npm/@openc3/tool-common
npm
< 5.19.0
5.19.0
openc3
pypi/openc3
PyPI
< 5.19.0
5.19.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OpenC3/cosmos/security/advisories/GHSA-vfj8-5pj7-2f9g
NVD — CVE-2024-43795 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-43795
Security Fix Commit FIX COMMIT
https://github.com/OpenC3/cosmos/commit/762d7e0e93bdc2f340b1e42acccedc78994a576e
Openc3 Source Repository REPOSITORY
https://github.com/OpenC3/cosmos
Openc3 Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/openc3/PYSEC-2024-100.yaml
Openc3 Source Repository REPOSITORY
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/openc3/CVE-2024-43795.yml
GitHub Advisory / Wiki ADVISORY
https://securitylab.github.com/advisories/GHSL-2024-127_GHSL-2024-129_OpenC3_COSMOS

Frequently Asked Questions

What is CVE-2024-43795?
CVE-2024-43795 is a security vulnerability in Openc3 involving OpenC3 Cross-site Scripting in Login functionality (`GHSL-2024-128`) under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Openc3 versions are affected?
Affected versions include releases prior to 5.19.0 across affected packages: openc3, @openc3/tool-common.
What version fixes CVE-2024-43795?
Upgrading to 5.19.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openc3 affected?
Yes, openc3 is affected in releases prior to 5.19.0. Upgrade your dependency to 5.19.0 or later.
Is @openc3/tool-common affected?
Yes, @openc3/tool-common is affected in releases prior to 5.19.0. Upgrade your dependency to 5.19.0 or later.
What is the CVSS score of CVE-2024-43795?
CVE-2024-43795 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2024-43795?
CVE-2024-43795 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check RubyGems dependencies for CVE-2024-43795?
Run the dependency tree command: 'inspect dependencies for openc3'. 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-vfj8-5pj7-2f9g",
  "modified" : "2024-10-31T13:50:02Z",
  "published" : "2024-10-02T19:29:23Z",
  "aliases" : [ "CVE-2024-43795" ],
  "summary" : "OpenC3 Cross-site Scripting in Login functionality (`GHSL-2024-128`)",
  "details" : "### Summary\nThe login functionality contains a reflected cross-site scripting (XSS) vulnerability.\n\nNote: This CVE only affects Open Source Edition, and not OpenC3 COSMOS Enterprise Edition\n\n### Impact\nThis issue may lead up to Remote Code Execution (RCE).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "openc3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.19.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@openc3/tool-common"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.19.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "openc3"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.19.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OpenC3/cosmos/security/advisories/GHSA-vfj8-5pj7-2f9g"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-43795"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenC3/cosmos/commit/762d7e0e93bdc2f340b1e42acccedc78994a576e"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OpenC3/cosmos"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/openc3/PYSEC-2024-100.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/openc3/CVE-2024-43795.yml"
  }, {
    "type" : "ADVISORY",
    "url" : "https://securitylab.github.com/advisories/GHSL-2024-127_GHSL-2024-129_OpenC3_COSMOS"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-10-02T19:29:23Z",
    "nvd_published_at" : "2024-10-02T20:15:10Z"
  }
}