Vulnerability-Lookup

CVE-2024-50347 (GCVE-0-2024-50347)

Vulnerability from cvelistv5 – Published: 2024-10-31 17:56 – Updated: 2024-10-31 19:46

Title

Laravel Reverb has Missing API Signature Verification

Summary

Laravel Reverb provides a real-time WebSocket communication backend for Laravel applications. Prior to 1.4.0, there is an issue where verification signatures for requests sent to Reverb's Pusher-compatible API were not being verified. This API is used in scenarios such as broadcasting a message from a backend service or for obtaining statistical information (such as number of connections) about a given channel. This issue only affects the Pusher-compatible API endpoints and not the WebSocket connections themselves. In order to exploit this vulnerability, the application ID which, should never be exposed, would need to be known by an attacker. This vulnerability is fixed in 1.4.0.

Severity ?

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/U:Green

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

GitHub_M

References

URL

Tags

	https://github.com/laravel/reverb/security/adviso…	x_refsource_CONFIRM
	https://github.com/laravel/reverb/pull/252	x_refsource_MISC
	https://github.com/laravel/reverb/commit/73cc140d…	x_refsource_MISC
	https://github.com/laravel/reverb/releases/tag/v1.4.0	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	laravel	reverb	Affected: < 1.4.0

Show details on NVD website

JSON

To clipboard

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GHSA-PFRR-XVRF-PXJX

Vulnerability from github – Published: 2024-10-31 18:03 – Updated: 2024-10-31 19:36

Summary

Laravel Reverb Missing API Signature Verification

Details

Impact

A community member disclosed an issue where verification signatures for requests sent to Reverb's Pusher-compatible API were not being verified. This API is used in scenarios such as broadcasting a message from a backend service or for obtaining statistical information (such as number of connections) about a given channel.

The verification signature is a hash comprised of different parts of the request signed by the app's secret key. The signature is sent as part of the request and should be regenerated by Reverb. Only when both the signature in the request and the one generated by Reverb match should the request be allowed. This helps to verify the request came from a known source.

[!NOTE]
This issue only affects the Pusher-compatible API endpoints and not the WebSocket connections themselves. In order to exploit this vulnerability, the application ID which, should never be exposed, would need to be known by an attacker.

The following endpoints were affected:

POST /events
POST /events_batch
GET /connections
GET /channels
GET /channel
GET /channel_users
POST /users_terminate

Patches

The issue was resolved by #252 and the patch released in v1.4.0.

References

Generating Pusher authentication signatures

Severity ?

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "laravel/reverb"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-50347"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-345",
      "CWE-347"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-10-31T18:03:11Z",
    "nvd_published_at": "2024-10-31T18:15:05Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nA community member disclosed an issue where verification signatures for requests sent to Reverb\u0027s Pusher-compatible API were not being verified. This API is used in scenarios such as broadcasting a message from a backend service or for obtaining statistical information (such as number of connections) about a given channel.\n\nThe verification signature is a hash comprised of different parts of the request signed by the app\u0027s secret key. The signature is sent as part of the request and should be regenerated by Reverb. Only when both the signature in the request and the one generated by Reverb match should the request be allowed. This helps to verify the request came from a known source.\n\n\u003e [!NOTE]  \n\u003e This issue only affects the Pusher-compatible API endpoints and not the WebSocket connections themselves. In order to exploit this vulnerability, the application ID which, should never be exposed, would need to be known by an attacker. \n\nThe following endpoints were affected:\n\n```\nPOST /events\nPOST /events_batch\nGET /connections\nGET /channels\nGET /channel\nGET /channel_users\nPOST /users_terminate\n```\n\n### Patches\nThe issue was resolved by [#252](https://github.com/laravel/reverb/pull/252) and the patch released in [v1.4.0](https://github.com/laravel/reverb/releases/tag/v1.4.0).\n\n### References\n[Generating Pusher authentication signatures](https://pusher.com/docs/channels/library_auth_reference/rest-api/#generating-authentication-signatures)\n",
  "id": "GHSA-pfrr-xvrf-pxjx",
  "modified": "2024-10-31T19:36:22Z",
  "published": "2024-10-31T18:03:11Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/laravel/reverb/security/advisories/GHSA-pfrr-xvrf-pxjx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50347"
    },
    {
      "type": "WEB",
      "url": "https://github.com/laravel/reverb/pull/252"
    },
    {
      "type": "WEB",
      "url": "https://github.com/laravel/reverb/commit/73cc140d76e803b151fc2dd2e4eb3eb784a82ee2"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/laravel/reverb"
    },
    {
      "type": "WEB",
      "url": "https://github.com/laravel/reverb/releases/tag/v1.4.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Laravel Reverb Missing API Signature Verification"
}

FKIE_CVE-2024-50347

Vulnerability from fkie_nvd - Published: 2024-10-31 18:15 - Updated: 2024-11-01 12:57

Severity ?

6.3 (Medium) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/U:Green

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/laravel/reverb/commit/73cc140d76e803b151fc2dd2e4eb3eb784a82ee2
	security-advisories@github.com	https://github.com/laravel/reverb/pull/252
	security-advisories@github.com	https://github.com/laravel/reverb/releases/tag/v1.4.0
	security-advisories@github.com	https://github.com/laravel/reverb/security/advisories/GHSA-pfrr-xvrf-pxjx

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Laravel Reverb provides a real-time WebSocket communication backend for Laravel applications. Prior to 1.4.0, there is an issue where verification signatures for requests sent to Reverb\u0027s Pusher-compatible API were not being verified. This API is used in scenarios such as broadcasting a message from a backend service or for obtaining statistical information (such as number of connections) about a given channel. This issue only affects the Pusher-compatible API endpoints and not the WebSocket connections themselves. In order to exploit this vulnerability, the application ID which, should never be exposed, would need to be known by an attacker. This vulnerability is fixed in 1.4.0."
    },
    {
      "lang": "es",
      "value": " Laravel Reverb proporciona un backend de comunicaci\u00f3n WebSocket en tiempo real para aplicaciones Laravel. Antes de la versi\u00f3n 1.4.0, hab\u00eda un problema en el que no se verificaban las firmas de verificaci\u00f3n para las solicitudes enviadas a la API compatible con Pusher de Reverb. Esta API se utiliza en escenarios como la transmisi\u00f3n de un mensaje desde un servicio backend o para obtener informaci\u00f3n estad\u00edstica (como la cantidad de conexiones) sobre un canal determinado. Este problema solo afecta a los endpoints de la API compatible con Pusher y no a las conexiones WebSocket en s\u00ed. Para explotar esta vulnerabilidad, el ID de la aplicaci\u00f3n, que nunca deber\u00eda exponerse, deber\u00eda ser conocido por un atacante. Esta vulnerabilidad se solucion\u00f3 en la versi\u00f3n 1.4.0."
    }
  ],
  "id": "CVE-2024-50347",
  "lastModified": "2024-11-01T12:57:03.417",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "HIGH",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "GREEN",
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          "valueDensity": "NOT_DEFINED",
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          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
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  "published": "2024-10-31T18:15:05.600",
  "references": [
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      "source": "security-advisories@github.com",
      "url": "https://github.com/laravel/reverb/commit/73cc140d76e803b151fc2dd2e4eb3eb784a82ee2"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laravel/reverb/pull/252"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laravel/reverb/releases/tag/v1.4.0"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/laravel/reverb/security/advisories/GHSA-pfrr-xvrf-pxjx"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2024-50347 (GCVE-0-2024-50347)

GHSA-PFRR-XVRF-PXJX

Impact

Patches

References

FKIE_CVE-2024-50347

Tags

Sightings

Nomenclature