Vulnerability-Lookup

FKIE_CVE-2016-10536

Vulnerability from fkie_nvd - Published: 2018-05-31 20:29 - Updated: 2026-06-17 00:39

Severity

5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

engine.io-client is the client for engine.io, the implementation of a transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. The vulnerability is related to the way that node.js handles the `rejectUnauthorized` setting. If the value is something that evaluates to false, certificate verification will be disabled. This is problematic as engine.io-client 1.6.8 and earlier passes in an object for settings that includes the rejectUnauthorized property, whether it has been set or not. If the value has not been explicitly changed, it will be passed in as `null`, resulting in certificate verification being turned off.

References

URL	Tags
support@hackerone.com	https://github.com/socketio/engine.io-client/commit/2c55b278a491bf45313ecc0825cf800e2f7ff5c1	Patch, Third Party Advisory
support@hackerone.com	https://nodesecurity.io/advisories/99	Third Party Advisory
support@hackerone.com	https://www.cigital.com/blog/node-js-socket-io/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/socketio/engine.io-client/commit/2c55b278a491bf45313ecc0825cf800e2f7ff5c1	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://nodesecurity.io/advisories/99	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.cigital.com/blog/node-js-socket-io/	Third Party Advisory

Impacted products

	Vendor	Product	Version
	socket	engine.io-client	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "engine.io-client node module",
          "vendor": "HackerOne",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.6.8"
            }
          ]
        }
      ],
      "source": "support@hackerone.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:socket:engine.io-client:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "88C783C2-BFB3-4F7B-847F-7D43A1CD54E6",
              "versionEndIncluding": "1.6.8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "engine.io-client is the client for engine.io, the implementation of a transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. The vulnerability is related to the way that node.js handles the `rejectUnauthorized` setting. If the value is something that evaluates to false, certificate verification will be disabled. This is problematic as engine.io-client 1.6.8 and earlier passes in an object for settings that includes the rejectUnauthorized property, whether it has been set or not. If the value has not been explicitly changed, it will be passed in as `null`, resulting in certificate verification being turned off."
    },
    {
      "lang": "es",
      "value": "engine.io-client es el cliente para engine.io, la implementaci\u00f3n de una capa de comunicaci\u00f3n bidireccional cross-browser/cross-device basada en transporte para Socket.IO. La vulnerabilidad est\u00e1 relacionada con la forma en la que node.js gestiona la opci\u00f3n \"rejectUnauthorized\". si el valor es algo que se eval\u00faa como falso, se deshabilitar\u00e1 la verificaci\u00f3n de certificados. Esto es un problema, ya que engine.io-client en versiones 1.6.8 y anteriores pasa un objeto para opciones que incluyen la propiedad rejectUnauthorized, se haya habilitado o no. Si el valor no se ha cambiado de forma expl\u00edcita, se pasar\u00e1 como \"null\", lo que resulta en que se desactiva la verificaci\u00f3n de certificados."
    }
  ],
  "id": "CVE-2016-10536",
  "lastModified": "2026-06-17T00:39:53.787",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-05-31T20:29:01.253",
  "references": [
    {
      "source": "support@hackerone.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/socketio/engine.io-client/commit/2c55b278a491bf45313ecc0825cf800e2f7ff5c1"
    },
    {
      "source": "support@hackerone.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://nodesecurity.io/advisories/99"
    },
    {
      "source": "support@hackerone.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.cigital.com/blog/node-js-socket-io/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/socketio/engine.io-client/commit/2c55b278a491bf45313ecc0825cf800e2f7ff5c1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://nodesecurity.io/advisories/99"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.cigital.com/blog/node-js-socket-io/"
    }
  ],
  "sourceIdentifier": "support@hackerone.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-300"
        }
      ],
      "source": "support@hackerone.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2016-10536 (GCVE-0-2016-10536)

Vulnerability from cvelistv5 – Published: 2018-05-31 20:00 – Updated: 2024-09-17 01:46

Summary

Severity

No CVSS data available.

CWE

CWE-300 - Man-in-the-Middle (CWE-300)

Assigner

hackerone CNA under the mitre root

CNA scorecard D 59/100 over 187 records in the last 180 days details

References

3 references

URL	Tags
https://www.cigital.com/blog/node-js-socket-io/	x_refsource_MISC
https://github.com/socketio/engine.io-client/comm…	x_refsource_MISC
https://nodesecurity.io/advisories/99	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
HackerOne	engine.io-client node module	Affected: <= 1.6.8

Date Public

2018-04-26 00:00

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.

Vulnerability timeline

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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.

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