pysec - pysec-2021-25

pysec-2021-25

Vulnerability from pysec

Published

2021-04-12 22:15

Modified

2021-04-26 18:40

Details

Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 requests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks. See referenced GitHub security advisory for details and workarounds.

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "matrix-synapse",
        "purl": "pkg:pypi/matrix-synapse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.28.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.33.5",
        "0.33.5.1",
        "0.33.6rc1",
        "0.33.6",
        "0.33.7rc1",
        "0.33.7rc2",
        "0.33.7",
        "0.33.8rc2",
        "0.33.8",
        "0.33.9",
        "0.34.0rc1",
        "0.34.0rc2",
        "0.34.0",
        "0.34.0.1",
        "0.34.1.1",
        "0.99.0rc1",
        "0.99.0rc2",
        "0.99.0rc3",
        "0.99.0rc4",
        "0.99.0",
        "0.99.1rc1",
        "0.99.1rc2",
        "0.99.1",
        "0.99.1.1",
        "0.99.2rc1",
        "0.99.2",
        "0.99.3rc1",
        "0.99.3",
        "0.99.3.1",
        "0.99.3.2",
        "0.99.4rc1",
        "0.99.4",
        "0.99.5rc1",
        "0.99.5",
        "0.99.5.1",
        "0.99.5.2",
        "1.0.0rc1",
        "1.0.0rc2",
        "1.0.0rc3",
        "1.0.0",
        "1.1.0rc1",
        "1.1.0rc2",
        "1.1.0",
        "1.2.0rc1",
        "1.2.0rc2",
        "1.2.0",
        "1.2.1",
        "1.3.0rc1",
        "1.3.0",
        "1.3.1",
        "1.4.0rc1",
        "1.4.0rc2",
        "1.4.0",
        "1.4.1rc1",
        "1.4.1",
        "1.5.0rc1",
        "1.5.0rc2",
        "1.5.0",
        "1.5.1",
        "1.6.0rc1",
        "1.6.0rc2",
        "1.6.0",
        "1.6.1",
        "1.7.0rc1",
        "1.7.0rc2",
        "1.7.0",
        "1.7.1",
        "1.7.2",
        "1.7.3",
        "1.8.0rc1",
        "1.8.0",
        "1.9.0.dev1",
        "1.9.0.dev2",
        "1.9.0rc1",
        "1.9.0",
        "1.9.1",
        "1.10.0rc1",
        "1.10.0rc2",
        "1.10.0rc3",
        "1.10.0rc5",
        "1.10.0",
        "1.10.1",
        "1.11.0rc1",
        "1.11.0",
        "1.11.1",
        "1.12.0rc1",
        "1.12.0",
        "1.12.1rc1",
        "1.12.1",
        "1.12.2",
        "1.12.3",
        "1.12.4rc1",
        "1.12.4",
        "1.13.0rc1",
        "1.13.0rc2",
        "1.13.0rc3",
        "1.13.0",
        "1.14.0rc1",
        "1.14.0rc2",
        "1.14.0",
        "1.15.0rc1",
        "1.15.0",
        "1.15.1",
        "1.15.2",
        "1.16.0rc1",
        "1.16.0rc2",
        "1.16.0",
        "1.16.1",
        "1.17.0rc1",
        "1.17.0",
        "1.18.0rc1",
        "1.18.0rc2",
        "1.18.0",
        "1.19.0rc1",
        "1.19.0",
        "1.19.1rc1",
        "1.19.1",
        "1.19.2",
        "1.19.3",
        "1.20.0rc1",
        "1.20.0rc2",
        "1.20.0rc3",
        "1.20.0rc4",
        "1.20.0rc5",
        "1.20.0",
        "1.20.1",
        "1.21.0rc1",
        "1.21.0rc2",
        "1.21.0rc3",
        "1.21.0",
        "1.21.1",
        "1.21.2",
        "1.22.0rc1",
        "1.22.0rc2",
        "1.22.0",
        "1.22.1",
        "1.23.0rc1",
        "1.23.0",
        "1.23.1",
        "1.24.0rc1",
        "1.24.0rc2",
        "1.24.0",
        "1.25.0rc1",
        "1.25.0",
        "1.26.0rc1",
        "1.26.0rc2",
        "1.26.0",
        "1.27.0rc1",
        "1.27.0rc2",
        "1.27.0",
        "1.28.0rc1"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21392",
    "GHSA-5wrh-4jwv-5w78"
  ],
  "details": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 requests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks. See referenced GitHub security advisory for details and workarounds.",
  "id": "PYSEC-2021-25",
  "modified": "2021-04-26T18:40:00Z",
  "published": "2021-04-12T22:15:00Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/matrix-synapse/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/synapse/pull/9240"
    }
  ]
}

cve-2021-21392

Vulnerability from cvelistv5

Published

2021-04-12 21:50

Modified

2024-08-03 18:09

Severity ?

6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N

Summary

Open redirect via transitional IPv6 addresses on dual-stack networks

References

▼	URL	Tags
	https://pypi.org/project/matrix-synapse/	x_refsource_MISC
	https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78	x_refsource_CONFIRM
	https://github.com/matrix-org/synapse/pull/9240	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNNAJOZNMVMXM6AS7RFFKB4QLUJ4IFEY/	vendor-advisory, x_refsource_FEDORA

Impacted products

Vendor

Product

Version

▼

matrix-org

synapse

Version: < 1.28.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:09:15.930Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://pypi.org/project/matrix-synapse/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/matrix-org/synapse/pull/9240"
          },
          {
            "name": "FEDORA-2021-a627cfd31e",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNNAJOZNMVMXM6AS7RFFKB4QLUJ4IFEY/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "synapse",
          "vendor": "matrix-org",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.28.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 requests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks. See referenced GitHub security advisory for details and workarounds."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601 URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-02T02:06:34",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://pypi.org/project/matrix-synapse/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/matrix-org/synapse/pull/9240"
        },
        {
          "name": "FEDORA-2021-a627cfd31e",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TNNAJOZNMVMXM6AS7RFFKB4QLUJ4IFEY/"
        }
      ],
      "source": {
        "advisory": "GHSA-5wrh-4jwv-5w78",
        "discovery": "UNKNOWN"
      },
      "title": "Open redirect via transitional IPv6 addresses on dual-stack networks",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-21392",
          "STATE": "PUBLIC",
          "TITLE": "Open redirect via transitional IPv6 addresses on dual-stack networks"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "synapse",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 1.28.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "matrix-org"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.28.0 requests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks. See referenced GitHub security advisory for details and workarounds."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-601 URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://pypi.org/project/matrix-synapse/",
              "refsource": "MISC",
              "url": "https://pypi.org/project/matrix-synapse/"
            },
            {
              "name": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78",
              "refsource": "CONFIRM",
              "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78"
            },
            {
              "name": "https://github.com/matrix-org/synapse/pull/9240",
              "refsource": "MISC",
              "url": "https://github.com/matrix-org/synapse/pull/9240"
            },
            {
              "name": "FEDORA-2021-a627cfd31e",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TNNAJOZNMVMXM6AS7RFFKB4QLUJ4IFEY/"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-5wrh-4jwv-5w78",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-21392",
    "datePublished": "2021-04-12T21:50:14",
    "dateReserved": "2020-12-22T00:00:00",
    "dateUpdated": "2024-08-03T18:09:15.930Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

ghsa-5wrh-4jwv-5w78

Vulnerability from github

Published

2021-04-13 15:13

Modified

2024-09-30 20:28

Severity ?

6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N
7.1 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

Summary

Open redirect via transitional IPv6 addresses on dual-stack networks

Details

Impact

Requests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks.

Patches

This issue is fixed by #9240.

Workarounds

Outbound requests to the following address ranges can be blocked by a firewall, if unused for internal communication between systems:

::ffff/80
::0000/80 (note that this IP range is considered deprecated by the IETF)
2002::/16 (note that this IP range is considered deprecated by the IETF)

References

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "matrix-synapse"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.28.0rc1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21392"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-601"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-04-12T21:51:49Z",
    "nvd_published_at": "2021-04-12T22:15:00Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nRequests to user provided domains were not restricted to external IP addresses when transitional IPv6 addresses were used. Outbound requests to federation, identity servers, when calculating the key validity for third-party invite events, sending push notifications, and generating URL previews are affected. This could cause Synapse to make requests to internal infrastructure on dual-stack networks.\n\n### Patches\nThis issue is fixed by #9240.\n\n### Workarounds\nOutbound requests to the following address ranges can be blocked by a firewall, if unused for internal communication between systems:\n\n* `::ffff/80`\n* `::0000/80` (note that this IP range is considered deprecated by the IETF)\n* `2002::/16` (note that this IP range is considered deprecated by the IETF)\n\n### References\n* [RFC3056](https://tools.ietf.org/html/rfc3056)\n* [RFC4291](https://tools.ietf.org/html/rfc4291)",
  "id": "GHSA-5wrh-4jwv-5w78",
  "modified": "2024-09-30T20:28:18Z",
  "published": "2021-04-13T15:13:08Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-5wrh-4jwv-5w78"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21392"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/synapse/pull/9240"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matrix-org/synapse/commit/4ca054a4eaa714d0befb4fc30b19a1131e52c9cc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/matrix-org/synapse"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-25.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TNNAJOZNMVMXM6AS7RFFKB4QLUJ4IFEY"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/matrix-synapse"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Open redirect via transitional IPv6 addresses on dual-stack networks"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2021-25

Vulnerability from pysec

cve-2021-21392

Vulnerability from cvelistv5

ghsa-5wrh-4jwv-5w78

Vulnerability from github

Impact

Patches

Workarounds

References

Tags

Sightings

Nomenclature