Vulnerability-Lookup

GHSA-R7QP-CFHV-P84W

Vulnerability from github – Published: 2022-11-21 23:55 – Updated: 2022-12-08 00:47

Summary

Uncaught exception in engine.io

Details

Impact

A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.

events.js:292
      throw er; // Unhandled 'error' event
      ^

Error: read ECONNRESET
    at TCP.onStreamRead (internal/stream_base_commons.js:209:20)
Emitted 'error' event on Socket instance at:
    at emitErrorNT (internal/streams/destroy.js:106:8)
    at emitErrorCloseNT (internal/streams/destroy.js:74:3)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  errno: -104,
  code: 'ECONNRESET',
  syscall: 'read'
}

This impacts all the users of the engine.io package, including those who uses depending packages like socket.io.

Patches

A fix has been released today (2022/11/20):

Version range	Fixed version
`engine.io@3.x.y`	`3.6.1`
`engine.io@6.x.y`	`6.2.1`

For socket.io users:

Version range	`engine.io` version	Needs minor update?
`socket.io@4.5.x`	`~6.2.0`	`npm audit fix` should be sufficient
`socket.io@4.4.x`	`~6.1.0`	Please upgrade to `socket.io@4.5.x`
`socket.io@4.3.x`	`~6.0.0`	Please upgrade to `socket.io@4.5.x`
`socket.io@4.2.x`	`~5.2.0`	Please upgrade to `socket.io@4.5.x`
`socket.io@4.1.x`	`~5.1.1`	Please upgrade to `socket.io@4.5.x`
`socket.io@4.0.x`	`~5.0.0`	Please upgrade to `socket.io@4.5.x`
`socket.io@3.1.x`	`~4.1.0`	Please upgrade to `socket.io@4.5.x` (see here)
`socket.io@3.0.x`	`~4.0.0`	Please upgrade to `socket.io@4.5.x` (see here)
`socket.io@2.5.0`	`~3.6.0`	`npm audit fix` should be sufficient
`socket.io@2.4.x` and below	`~3.5.0`	Please upgrade to `socket.io@2.5.0`

Workarounds

There is no known workaround except upgrading to a safe version.

For more information

If you have any questions or comments about this advisory:

Open an issue in engine.io

Thanks to Jonathan Neve for the responsible disclosure.

Severity

6.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "engine.io"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "engine.io"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "6.2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-41940"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-248"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-11-21T23:55:41Z",
    "nvd_published_at": "2022-11-22T01:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nA specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process.\n\n```\nevents.js:292\n      throw er; // Unhandled \u0027error\u0027 event\n      ^\n\nError: read ECONNRESET\n    at TCP.onStreamRead (internal/stream_base_commons.js:209:20)\nEmitted \u0027error\u0027 event on Socket instance at:\n    at emitErrorNT (internal/streams/destroy.js:106:8)\n    at emitErrorCloseNT (internal/streams/destroy.js:74:3)\n    at processTicksAndRejections (internal/process/task_queues.js:80:21) {\n  errno: -104,\n  code: \u0027ECONNRESET\u0027,\n  syscall: \u0027read\u0027\n}\n```\n\nThis impacts all the users of the [`engine.io`](https://www.npmjs.com/package/engine.io) package, including those who uses depending packages like [`socket.io`](https://www.npmjs.com/package/socket.io).\n\n### Patches\n\nA fix has been released today (2022/11/20):\n\n| Version range     | Fixed version |\n|-------------------|---------------|\n| `engine.io@3.x.y` | `3.6.1`       |\n| `engine.io@6.x.y` | `6.2.1`       |\n\nFor `socket.io` users:\n\n| Version range               | `engine.io` version | Needs minor update?                                                                                    |\n|-----------------------------|---------------------|--------------------------------------------------------------------------------------------------------|\n| `socket.io@4.5.x`           | `~6.2.0`            | `npm audit fix` should be sufficient                                                                   |\n| `socket.io@4.4.x`           | `~6.1.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.3.x`           | `~6.0.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.2.x`           | `~5.2.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.1.x`           | `~5.1.1`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@4.0.x`           | `~5.0.0`            | Please upgrade to `socket.io@4.5.x`                                                                    |\n| `socket.io@3.1.x`           | `~4.1.0`            | Please upgrade to `socket.io@4.5.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/)) |\n| `socket.io@3.0.x`           | `~4.0.0`            | Please upgrade to `socket.io@4.5.x` (see [here](https://socket.io/docs/v4/migrating-from-3-x-to-4-0/)) |\n| `socket.io@2.5.0`           | `~3.6.0`            | `npm audit fix` should be sufficient                                                                   |\n| `socket.io@2.4.x` and below | `~3.5.0`            | Please upgrade to `socket.io@2.5.0`                                                                    |\n\n### Workarounds\n\nThere is no known workaround except upgrading to a safe version.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [`engine.io`](https://github.com/socketio/engine.io)\n\nThanks to [Jonathan Neve](https://github.com/jonathanneve) for the responsible disclosure.\n",
  "id": "GHSA-r7qp-cfhv-p84w",
  "modified": "2022-12-08T00:47:24Z",
  "published": "2022-11-21T23:55:41Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41940"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/socketio/engine.io"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Uncaught exception in engine.io"
}

CVE-2022-41940 (GCVE-0-2022-41940)

Vulnerability from cvelistv5 – Published: 2022-11-22 00:00 – Updated: 2025-04-22 16:02

Title

Uncaught exception in engine.io

Summary

Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1.

Severity

7.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-22 15:41 UTC

CWE

CWE-248 - Uncaught Exception

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/socketio/engine.io/security/ad…
https://github.com/socketio/engine.io/commit/425e…
https://github.com/socketio/engine.io/commit/83c4…

Impacted products

1 product

Vendor	Product	Version
socketio	engine.io	Affected: < 3.6.1 Affected: >= 4.0.0, < 6.2.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T12:56:38.535Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-41940",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-22T15:41:28.524567Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-22T16:02:20.459Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "engine.io",
          "vendor": "socketio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.6.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 6.2.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-248",
              "description": "CWE-248: Uncaught Exception",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-11-22T00:00:00.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "url": "https://github.com/socketio/engine.io/security/advisories/GHSA-r7qp-cfhv-p84w"
        },
        {
          "url": "https://github.com/socketio/engine.io/commit/425e833ab13373edf1dd5a0706f07100db14e3c6"
        },
        {
          "url": "https://github.com/socketio/engine.io/commit/83c4071af871fc188298d7d591e95670bf9f9085"
        }
      ],
      "source": {
        "advisory": "GHSA-r7qp-cfhv-p84w",
        "discovery": "UNKNOWN"
      },
      "title": "Uncaught exception in engine.io "
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-41940",
    "datePublished": "2022-11-22T00:00:00.000Z",
    "dateReserved": "2022-09-30T00:00:00.000Z",
    "dateUpdated": "2025-04-22T16:02:20.459Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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

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