cve-2021-21273
Vulnerability from cvelistv5
Published
2021-02-26 17:25
Modified
2024-08-03 18:09
Severity ?
EPSS score ?
Summary
Open redirects on some federation and push requests
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
▼ | matrix-org | synapse |
Version: < 1.25.0 |
|
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Matrix is an ecosystem for open federated Instant Messaging and VoIP. In Synapse before version 1.25.0, requests to user provided domains were not restricted to external IP addresses when calculating the key validity for third-party invite events and sending push notifications. This could cause Synapse to make requests to internal infrastructure. The type of request was not controlled by the user, although limited modification of request bodies was possible. For the most thorough protection server administrators should remove the deprecated `federation_ip_range_blacklist` from their settings after upgrading to Synapse v1.25.0 which will result in Synapse using the improved default IP address restrictions. See the new `ip_range_blacklist` and `ip_range_whitelist` settings if more specific control is necessary." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/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": "2021-08-02T02:06:27", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/matrix-org/synapse/releases/tag/v1.25.0" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-v936-j8gp-9q3p" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/matrix-org/synapse/pull/8821" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/matrix-org/synapse/commit/30fba6210834a4ecd91badf0c8f3eb278b72e746" }, { "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-v936-j8gp-9q3p", "discovery": "UNKNOWN" }, "title": "Open redirects on some federation and push requests", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-21273", "STATE": "PUBLIC", "TITLE": "Open redirects on some federation and push requests" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "synapse", "version": { "version_data": [ { "version_value": "\u003c 1.25.0" } ] } } ] }, "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). 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See the new `ip_range_blacklist` and `ip_range_whitelist` settings if more specific control is necessary." } ] }, "impact": { "cvss": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/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://github.com/matrix-org/synapse/releases/tag/v1.25.0", "refsource": "MISC", "url": "https://github.com/matrix-org/synapse/releases/tag/v1.25.0" }, { "name": "https://github.com/matrix-org/synapse/security/advisories/GHSA-v936-j8gp-9q3p", "refsource": "CONFIRM", "url": "https://github.com/matrix-org/synapse/security/advisories/GHSA-v936-j8gp-9q3p" }, { "name": "https://github.com/matrix-org/synapse/pull/8821", "refsource": "MISC", "url": "https://github.com/matrix-org/synapse/pull/8821" }, { "name": "https://github.com/matrix-org/synapse/commit/30fba6210834a4ecd91badf0c8f3eb278b72e746", "refsource": "MISC", "url": "https://github.com/matrix-org/synapse/commit/30fba6210834a4ecd91badf0c8f3eb278b72e746" }, { "name": "FEDORA-2021-a627cfd31e", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TNNAJOZNMVMXM6AS7RFFKB4QLUJ4IFEY/" } ] }, "source": { "advisory": "GHSA-v936-j8gp-9q3p", "discovery": "UNKNOWN" } } } }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-21273", "datePublished": "2021-02-26T17:25:29", "dateReserved": "2020-12-22T00:00:00", "dateUpdated": "2024-08-03T18:09:15.293Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-21273\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2021-02-26T18:15:12.143\",\"lastModified\":\"2023-11-07T03:29:42.437\",\"vulnStatus\":\"Modified\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Synapse is a Matrix reference homeserver written in python (pypi package matrix-synapse). 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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.
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- 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.