Vulnerabilites related to matrix - matrix-appservice-bridge
CVE-2021-32659 (GCVE-0-2021-32659)
Vulnerability from cvelistv5
Published
2021-06-16 18:45
Modified
2024-08-03 23:25
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-306 - Missing Authentication for Critical Function
Summary
Matrix-appservice-bridge is the bridging service for the Matrix communication program's application services. In versions 2.6.0 and earlier, if a bridge has room upgrade handling turned on in the configuration (the `roomUpgradeOpts` key when instantiating a new `Bridge` instance.), any `m.room.tombstone` event it encounters will be used to unbridge the current room and bridge into the target room. However, the target room `m.room.create` event is not checked to verify if the `predecessor` field contains the previous room. This means that any malicious admin of a bridged room can repoint the traffic to a different room without the new room being aware. Versions 2.6.1 and greater are patched. As a workaround, disabling the automatic room upgrade handling can be done by removing the `roomUpgradeOpts` key from the `Bridge` class options.
References
https://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-35g4-qx3c-vjhxx_refsource_CONFIRM
https://github.com/matrix-org/matrix-appservice-bridge/commit/b69e745584a34fcfd858df33e4631e420da07b9fx_refsource_MISC
https://github.com/matrix-org/matrix-appservice-bridge/releases/tag/2.6.1x_refsource_MISC
Impacted products
Vendor Product Version
matrix-org matrix-appservice-bridge Version: < 2.6.1
 Create a notification for this product.
Show details on NVD website

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CVE-2023-38691 (GCVE-0-2023-38691)
Vulnerability from cvelistv5
Published
2023-08-04 16:34
Modified
2024-10-07 13:01
Severity ?
5.0 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CWE
  • CWE-287 - Improper Authentication
Summary
matrix-appservice-bridge provides an API for setting up bridges. Starting in version 4.0.0 and prior to versions 8.1.2 and 9.0.1, a malicious Matrix server can use a foreign user's MXID in an OpenID exchange, allowing a bad actor to impersonate users when using the provisioning API. The library does not check that the servername part of the `sub` parameter (containing the user's *claimed* MXID) is the the same as the servername we are talking to. A malicious actor could spin up a server on any given domain, respond with a `sub` parameter according to the user they want to act as and use the resulting token to perform provisioning requests. Versions 8.1.2 and 9.0.1 contain a patch. As a workaround, disable the provisioning API.
References
https://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-vc7j-h8xg-fv5xx_refsource_CONFIRM
https://github.com/matrix-org/matrix-appservice-bridge/commit/4c6723a5e7beda65cdf1ae5dbb882e8beaac8552x_refsource_MISC
Impacted products
Vendor Product Version
matrix-org matrix-appservice-bridge Version: >= 4.0.0, < 8.1.2
Version: = 9.0.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

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Vulnerability from fkie_nvd
Published
2021-06-16 19:15
Modified
2024-11-21 06:07
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Summary
Matrix-appservice-bridge is the bridging service for the Matrix communication program's application services. In versions 2.6.0 and earlier, if a bridge has room upgrade handling turned on in the configuration (the `roomUpgradeOpts` key when instantiating a new `Bridge` instance.), any `m.room.tombstone` event it encounters will be used to unbridge the current room and bridge into the target room. However, the target room `m.room.create` event is not checked to verify if the `predecessor` field contains the previous room. This means that any malicious admin of a bridged room can repoint the traffic to a different room without the new room being aware. Versions 2.6.1 and greater are patched. As a workaround, disabling the automatic room upgrade handling can be done by removing the `roomUpgradeOpts` key from the `Bridge` class options.
References
security-advisories@github.comhttps://github.com/matrix-org/matrix-appservice-bridge/commit/b69e745584a34fcfd858df33e4631e420da07b9fPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/matrix-org/matrix-appservice-bridge/releases/tag/2.6.1Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-35g4-qx3c-vjhxMitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/matrix-org/matrix-appservice-bridge/commit/b69e745584a34fcfd858df33e4631e420da07b9fPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/matrix-org/matrix-appservice-bridge/releases/tag/2.6.1Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-35g4-qx3c-vjhxMitigation, Third Party Advisory
Impacted products
Vendor Product Version
matrix matrix-appservice-bridge *


To clipboard 

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      "value": "Matrix-appservice-bridge is the bridging service for the Matrix communication program\u0027s application services. In versions 2.6.0 and earlier, if a bridge has room upgrade handling turned on in the configuration (the `roomUpgradeOpts` key when instantiating a new `Bridge` instance.), any `m.room.tombstone` event it encounters will be used to unbridge the current room and bridge into the target room. However, the target room `m.room.create` event is not checked to verify if the `predecessor` field contains the previous room. This means that any malicious admin of a bridged room can repoint the traffic to a different room without the new room being aware. Versions 2.6.1 and greater are patched. As a workaround, disabling the automatic room upgrade handling can be done by removing the `roomUpgradeOpts` key from the `Bridge` class options."
    },
    {
      "lang": "es",
      "value": "Matrix-appservice-bridge es el servicio de bridge para los servicios de aplicaci\u00f3n del programa de comunicaci\u00f3n Matrix. En versiones 2.6.0 y anteriores, si un bridge presenta activada la administraci\u00f3n de actualizaci\u00f3n de salas en la configuraci\u00f3n (la clave \"roomUpgradeOpts\" al instanciar una nueva instancia de \"Bridge\"), cualquier evento \"m.room.tombstone\" que encuentre ser\u00e1 usada para deshacer el bridge de la sala actual y pasar a la sala de destino. Sin embargo, el evento \"m.room.create\" de la sala de destino no es comprobado para verificar si el campo \"predecessor\" contiene la sala anterior. Esto significa que cualquier administrador malicioso de una sala bridged puede redirigir el tr\u00e1fico a una sala diferente sin que la nueva sala lo sepa. Las versiones 2.6.1 y superiores est\u00e1n parcheadas. Como soluci\u00f3n, deshabilitando el manejo de la actualizaci\u00f3n autom\u00e1tica de salas eliminando la clave \"roomUpgradeOpts\" de las opciones de la clase \"Bridge\""
    }
  ],
  "id": "CVE-2021-32659",
  "lastModified": "2024-11-21T06:07:28.667",
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  "published": "2021-06-16T19:15:38.830",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/matrix-org/matrix-appservice-bridge/commit/b69e745584a34fcfd858df33e4631e420da07b9f"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/matrix-org/matrix-appservice-bridge/releases/tag/2.6.1"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-35g4-qx3c-vjhx"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/matrix-org/matrix-appservice-bridge/commit/b69e745584a34fcfd858df33e4631e420da07b9f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/matrix-org/matrix-appservice-bridge/releases/tag/2.6.1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-35g4-qx3c-vjhx"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
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      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

Vulnerability from fkie_nvd
Published
2023-08-04 17:15
Modified
2024-11-21 08:14
Severity ?
5.0 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
matrix-appservice-bridge provides an API for setting up bridges. Starting in version 4.0.0 and prior to versions 8.1.2 and 9.0.1, a malicious Matrix server can use a foreign user's MXID in an OpenID exchange, allowing a bad actor to impersonate users when using the provisioning API. The library does not check that the servername part of the `sub` parameter (containing the user's *claimed* MXID) is the the same as the servername we are talking to. A malicious actor could spin up a server on any given domain, respond with a `sub` parameter according to the user they want to act as and use the resulting token to perform provisioning requests. Versions 8.1.2 and 9.0.1 contain a patch. As a workaround, disable the provisioning API.
References
security-advisories@github.comhttps://github.com/matrix-org/matrix-appservice-bridge/commit/4c6723a5e7beda65cdf1ae5dbb882e8beaac8552Patch
security-advisories@github.comhttps://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-vc7j-h8xg-fv5xThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/matrix-org/matrix-appservice-bridge/commit/4c6723a5e7beda65cdf1ae5dbb882e8beaac8552Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-vc7j-h8xg-fv5xThird Party Advisory
Impacted products
Vendor Product Version
matrix matrix-appservice-bridge *
matrix matrix-appservice-bridge 9.0.0


To clipboard 

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  ],
  "id": "CVE-2023-38691",
  "lastModified": "2024-11-21T08:14:03.960",
  "metrics": {
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  "vulnStatus": "Modified",
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