github - ghsa-59hf-mpf8-pqjh

GHSA-59HF-MPF8-PQJH

Vulnerability from github – Published: 2024-09-26 09:31 – Updated: 2024-09-27 22:01

Summary

Mattermost fails to strip `embeds` from `metadata` when broadcasting `posted` events

Details

Mattermost does not strip embeds from metadata when broadcasting posted events.

This allows users to include arbitrary embeds in posts, which are then broadcasted via websockets. This can be exploited in many ways, for example to create permalinks with fully customizable content or to trigger a client Side Denial of Service (DoS) by sending a permalink with a non-string message.

The advisory metadata references the appropriate go pseudo version available from pkg.go.dev

Severity ?

5.4 (Medium)


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

5.3 (Medium)


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

Show details on source website

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost/server/v8"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.0.0-20240806094731-69a8b3df0f9f"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-47003"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-09-27T22:01:15Z",
    "nvd_published_at": "2024-09-26T08:15:06Z",
    "severity": "MODERATE"
  },
  "details": "Mattermost does not strip `embeds` from `metadata` when broadcasting `posted` events.\n\nThis allows users to include arbitrary embeds in posts, which are then broadcasted via websockets. This can be exploited in many ways, for example to create permalinks with fully customizable content or to trigger a client Side Denial of Service (DoS) by sending a permalink with a non-string message.\n\nThe advisory metadata references the appropriate go pseudo version available from pkg.go.dev",
  "id": "GHSA-59hf-mpf8-pqjh",
  "modified": "2024-09-27T22:01:15Z",
  "published": "2024-09-26T09:31:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47003"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/pull/27763"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/69a8b3df0f9fd3a7a5b792ec678b6191618d039b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/c0rydoras/cves/tree/main/CVE-2024-47003"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mattermost/mattermost"
    },
    {
      "type": "WEB",
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Mattermost fails to strip `embeds` from `metadata` when broadcasting `posted` events"
}

CVE-2024-47003 (GCVE-0-2024-47003)

Vulnerability from cvelistv5 – Published: 2024-09-26 08:05 – Updated: 2024-09-26 13:11

Summary

Mattermost versions 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.

Severity ?

3.1 (Low)


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

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

Mattermost

References

URL

Tags

https://mattermost.com/security-updates

Impacted products

	Vendor	Product	Version
	Mattermost	Mattermost	Affected: 9.11.0 Affected: 9.5.0 , ≤ 9.5.8 (semver) Unaffected: 10.0.0 Unaffected: 9.11.1 Unaffected: 9.5.9

Credits

c0rydoras (c0rydoras)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-47003",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-26T13:10:27.555291Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-26T13:11:00.827Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Mattermost",
          "vendor": "Mattermost",
          "versions": [
            {
              "status": "affected",
              "version": "9.11.0"
            },
            {
              "lessThanOrEqual": "9.5.8",
              "status": "affected",
              "version": "9.5.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "10.0.0"
            },
            {
              "status": "unaffected",
              "version": "9.11.1"
            },
            {
              "status": "unaffected",
              "version": "9.5.9"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "c0rydoras (c0rydoras)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eMattermost versions 9.11.x \u0026lt;= 9.11.0 and 9.5.x \u0026lt;= 9.5.8 fail to validate that the message of the permalink post is a string,\u0026nbsp;which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.\u003c/p\u003e"
            }
          ],
          "value": "Mattermost versions 9.11.x \u003c= 9.11.0 and 9.5.x \u003c= 9.5.8 fail to validate that the message of the permalink post is a string,\u00a0which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
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          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-09-26T08:05:16.392Z",
        "orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
        "shortName": "Mattermost"
      },
      "references": [
        {
          "url": "https://mattermost.com/security-updates"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eUpdate Mattermost to versions 10.0.0, 9.11.1, 9.5.9 or higher.\u003c/p\u003e"
            }
          ],
          "value": "Update Mattermost to versions 10.0.0, 9.11.1, 9.5.9 or higher."
        }
      ],
      "source": {
        "advisory": "MMSA-2024-00373",
        "defect": [
          "https://mattermost.atlassian.net/browse/MM-59077"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "DoS via non-string message using permalink embed",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
    "assignerShortName": "Mattermost",
    "cveId": "CVE-2024-47003",
    "datePublished": "2024-09-26T08:05:16.392Z",
    "dateReserved": "2024-09-23T07:55:36.376Z",
    "dateUpdated": "2024-09-26T13:11:00.827Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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

GHSA-59HF-MPF8-PQJH

CVE-2024-47003 (GCVE-0-2024-47003)

Tags

Sightings

Nomenclature