GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

GSD-2023-29529

Vulnerability from gsd - Updated: 2023-12-13 01:20
Details
matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room where an MSC3401 group call is taking place can eavesdrop on the video and audio of participants using matrix-js-sdk, without their knowledge. To affected matrix-js-sdk users, the attacker will not appear to be participating in the call. This attack is possible because matrix-js-sdk's group call implementation accepts incoming direct calls from other users, even if they have not yet declared intent to participate in the group call, as a means of resolving a race condition in call setup. Affected versions do not restrict access to the user's outbound media in this case. Legacy 1:1 calls are unaffected. This is fixed in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls in private rooms where only the exact users who are expected to participate in the call are present.
Aliases
Aliases
CVE-2023-29529
To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-29529",
    "id": "GSD-2023-29529"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-29529"
      ],
      "details": "matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room where an MSC3401 group call is taking place can eavesdrop on the video and audio of participants using matrix-js-sdk, without their knowledge. To affected matrix-js-sdk users, the attacker will not appear to be participating in the call. This attack is possible because matrix-js-sdk\u0027s group call implementation accepts incoming direct calls from other users, even if they have not yet declared intent to participate in the group call, as a means of resolving a race condition in call setup. Affected versions do not restrict access to the user\u0027s outbound media in this case. Legacy 1:1 calls are unaffected. This is fixed in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls in private rooms where only the exact users who are expected to participate in the call are present.",
      "id": "GSD-2023-29529",
      "modified": "2023-12-13T01:20:57.436716Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-29529",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "matrix-js-sdk",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 24.1.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "matrix-org"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room where an MSC3401 group call is taking place can eavesdrop on the video and audio of participants using matrix-js-sdk, without their knowledge. To affected matrix-js-sdk users, the attacker will not appear to be participating in the call. This attack is possible because matrix-js-sdk\u0027s group call implementation accepts incoming direct calls from other users, even if they have not yet declared intent to participate in the group call, as a means of resolving a race condition in call setup. Affected versions do not restrict access to the user\u0027s outbound media in this case. Legacy 1:1 calls are unaffected. This is fixed in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls in private rooms where only the exact users who are expected to participate in the call are present."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-862",
                "lang": "eng",
                "value": "CWE-862: Missing Authorization"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q",
            "refsource": "MISC",
            "url": "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q"
          },
          {
            "name": "https://github.com/matrix-org/matrix-spec-proposals/pull/3401",
            "refsource": "MISC",
            "url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3401"
          },
          {
            "name": "https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0",
            "refsource": "MISC",
            "url": "https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-6g67-q39g-r79q",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c24.1.0",
          "affected_versions": "All versions before 24.1.0",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2023-04-25",
          "description": "matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room where an MSC3401 group call is taking place can eavesdrop on the video and audio of participants using matrix-js-sdk, without their knowledge. To affected matrix-js-sdk users, the attacker will not appear to be participating in the call. This attack is possible because matrix-js-sdk\u0027s group call implementation accepts incoming direct calls from other users, even if they have not yet declared intent to participate in the group call, as a means of resolving a race condition in call setup. Affected versions do not restrict access to the user\u0027s outbound media in this case. Legacy 1:1 calls are unaffected. This is fixed in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls in private rooms where only the exact users who are expected to participate in the call are present.",
          "fixed_versions": [
            "24.1.0"
          ],
          "identifier": "CVE-2023-29529",
          "identifiers": [
            "CVE-2023-29529",
            "GHSA-6g67-q39g-r79q"
          ],
          "not_impacted": "All versions starting from 24.1.0",
          "package_slug": "npm/matrix-js-sdk",
          "pubdate": "2023-04-14",
          "solution": "Upgrade to version 24.1.0 or above.",
          "title": "Missing Authorization",
          "urls": [
            "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q",
            "https://nvd.nist.gov/vuln/detail/CVE-2023-29529",
            "https://github.com/matrix-org/matrix-spec-proposals/pull/3401",
            "https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0",
            "https://github.com/advisories/GHSA-6g67-q39g-r79q"
          ],
          "uuid": "33b2b07d-24e6-4405-8ee9-99d58911c8fd"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:matrix:javascript_sdk:*:*:*:*:*:node.js:*:*",
                "cpe_name": [],
                "versionEndExcluding": "24.1.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2023-29529"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. An attacker present in a room where an MSC3401 group call is taking place can eavesdrop on the video and audio of participants using matrix-js-sdk, without their knowledge. To affected matrix-js-sdk users, the attacker will not appear to be participating in the call. This attack is possible because matrix-js-sdk\u0027s group call implementation accepts incoming direct calls from other users, even if they have not yet declared intent to participate in the group call, as a means of resolving a race condition in call setup. Affected versions do not restrict access to the user\u0027s outbound media in this case. Legacy 1:1 calls are unaffected. This is fixed in matrix-js-sdk 24.1.0. As a workaround, users may hold group calls in private rooms where only the exact users who are expected to participate in the call are present."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q"
            },
            {
              "name": "https://github.com/matrix-org/matrix-spec-proposals/pull/3401",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Patch"
              ],
              "url": "https://github.com/matrix-org/matrix-spec-proposals/pull/3401"
            },
            {
              "name": "https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://github.com/matrix-org/matrix-js-sdk/releases/tag/v24.1.0"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2023-04-25T14:06Z",
      "publishedDate": "2023-04-14T19:15Z"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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.