Vulnerability-Lookup

GHSA-WX69-RVG3-X7FC

Vulnerability from github – Published: 2021-11-30 22:21 – Updated: 2021-12-01 15:07

Summary

XSS via prototype pollution in NodeBB

Details

Impact

A prototype pollution vulnerability in the uploader module allowed a malicious user to inject arbitrary data (i.e. javascript) into the DOM, theoretically allowing for an account takeover when used in conjunction with a path traversal vulnerability disclosed at the same time as this report.

Patches

The vulnerability has been patched as of v1.18.5.

Workarounds

Cherry-pick commit hash 1783f918bc19568f421473824461ff2ed7755e4c to receive this patch in lieu of a full upgrade.

For more information

If you have any questions or comments about this advisory: * Email us at security@nodebb.org

Severity

9.0 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "nodebb"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.15.0"
            },
            {
              "fixed": "1.18.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-43787"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-11-30T14:35:09Z",
    "nvd_published_at": "2021-11-29T20:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\nA prototype pollution vulnerability in the uploader module allowed a malicious user to inject arbitrary data (i.e. javascript) into the DOM, theoretically allowing for an account takeover when used in conjunction with a path traversal vulnerability disclosed at the same time as this report.\n\n### Patches\nThe vulnerability has been patched as of v1.18.5.\n\n### Workarounds\nCherry-pick commit hash 1783f918bc19568f421473824461ff2ed7755e4c to receive this patch in lieu of a full upgrade.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Email us at [security@nodebb.org](mailto:security@nodebb.org)\n",
  "id": "GHSA-wx69-rvg3-x7fc",
  "modified": "2021-12-01T15:07:01Z",
  "published": "2021-11-30T22:21:01Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/NodeBB/NodeBB/security/advisories/GHSA-wx69-rvg3-x7fc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43787"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NodeBB/NodeBB/commit/1783f918bc19568f421473824461ff2ed7755e4c"
    },
    {
      "type": "WEB",
      "url": "https://blog.sonarsource.com/nodebb-remote-code-execution-with-one-shot"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/NodeBB/NodeBB"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NodeBB/NodeBB/releases/tag/v1.18.5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "XSS via prototype pollution in NodeBB "
}

CVE-2021-43787 (GCVE-0-2021-43787)

Vulnerability from cvelistv5 – Published: 2021-11-29 19:30 – Updated: 2024-08-04 04:03

Title

XSS via prototype pollution

Summary

Nodebb is an open source Node.js based forum software. In affected versions a prototype pollution vulnerability in the uploader module allowed a malicious user to inject arbitrary data (i.e. javascript) into the DOM, theoretically allowing for an account takeover when used in conjunction with a path traversal vulnerability disclosed at the same time as this report. The vulnerability has been patched as of v1.18.5. Users are advised to upgrade as soon as possible.

Severity

9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/NodeBB/NodeBB/security/advisor…	x_refsource_CONFIRM
https://github.com/NodeBB/NodeBB/commit/1783f918b…	x_refsource_MISC
https://github.com/NodeBB/NodeBB/releases/tag/v1.18.5	x_refsource_MISC
https://blog.sonarsource.com/nodebb-remote-code-e…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
NodeBB	NodeBB	Affected: >= 1.15.5, < 1.18.5

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.