{"containers": {"cna": {"affected": [{"product": "zulip", "vendor": "zulip", "versions": [{"status": "affected", "version": ">= 2.0.0, < 4.10"}]}], "descriptions": [{"lang": "en", "value": "Zulip is an open-source team collaboration tool with topic-based threading. Zulip Server version 2.0.0 and above are vulnerable to insufficient access control with multi-use invitations. A Zulip Server deployment which hosts multiple organizations is vulnerable to an attack where an invitation created in one organization (potentially as a role with elevated permissions) can be used to join any other organization. This bypasses any restrictions on required domains on users' email addresses, may be used to gain access to organizations which are only accessible by invitation, and may be used to gain access with elevated privileges. This issue has been patched in release 4.10. There are no known workarounds for this issue. ### Patches _Has the problem been patched? What versions should users upgrade to?_ ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References _Are there any links users can visit to find out more?_ ### For more information If you have any questions or comments about this advisory, you can discuss them on the [developer community Zulip server](https://zulip.com/developer-community/), or email the [Zulip security team](mailto:security@zulip.com)."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-284", "description": "CWE-284: Improper Access Control", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-02-25T23:25:10", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e"}, {"tags": ["x_refsource_MISC"], "url": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/"}, {"tags": ["x_refsource_MISC"], "url": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706"}], "source": {"advisory": "GHSA-6xmj-2wcm-p2jc", "discovery": "UNKNOWN"}, "title": "Multi-use invitations can grant access to other organizations in Zulip", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2022-21706", "STATE": "PUBLIC", "TITLE": "Multi-use invitations can grant access to other organizations in Zulip"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "zulip", "version": {"version_data": [{"version_value": ">= 2.0.0, < 4.10"}]}}]}, "vendor_name": "zulip"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Zulip is an open-source team collaboration tool with topic-based threading. Zulip Server version 2.0.0 and above are vulnerable to insufficient access control with multi-use invitations. A Zulip Server deployment which hosts multiple organizations is vulnerable to an attack where an invitation created in one organization (potentially as a role with elevated permissions) can be used to join any other organization. This bypasses any restrictions on required domains on users' email addresses, may be used to gain access to organizations which are only accessible by invitation, and may be used to gain access with elevated privileges. This issue has been patched in release 4.10. There are no known workarounds for this issue. ### Patches _Has the problem been patched? What versions should users upgrade to?_ ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References _Are there any links users can visit to find out more?_ ### For more information If you have any questions or comments about this advisory, you can discuss them on the [developer community Zulip server](https://zulip.com/developer-community/), or email the [Zulip security team](mailto:security@zulip.com)."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-863: Incorrect Authorization"}]}, {"description": [{"lang": "eng", "value": "CWE-284: Improper Access Control"}]}]}, "references": {"reference_data": [{"name": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc", "refsource": "CONFIRM", "url": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc"}, {"name": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e", "refsource": "MISC", "url": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e"}, {"name": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/", "refsource": "MISC", "url": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/"}, {"name": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706", "refsource": "MISC", "url": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706"}]}, "source": {"advisory": "GHSA-6xmj-2wcm-p2jc", "discovery": "UNKNOWN"}}}}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2022-21706", "datePublished": "2022-02-25T23:25:10", "dateReserved": "2021-11-16T00:00:00", "dateUpdated": "2022-02-25T23:25:10", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:zulip:zulip_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "F19BE7BB-39B8-41FE-A025-1D985BEF3B67", "versionEndExcluding": "4.10.0", "versionStartIncluding": "2.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Zulip is an open-source team collaboration tool with topic-based threading. Zulip Server version 2.0.0 and above are vulnerable to insufficient access control with multi-use invitations. A Zulip Server deployment which hosts multiple organizations is vulnerable to an attack where an invitation created in one organization (potentially as a role with elevated permissions) can be used to join any other organization. This bypasses any restrictions on required domains on users' email addresses, may be used to gain access to organizations which are only accessible by invitation, and may be used to gain access with elevated privileges. This issue has been patched in release 4.10. There are no known workarounds for this issue. ### Patches _Has the problem been patched? What versions should users upgrade to?_ ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References _Are there any links users can visit to find out more?_ ### For more information If you have any questions or comments about this advisory, you can discuss them on the [developer community Zulip server](https://zulip.com/developer-community/), or email the [Zulip security team](mailto:security@zulip.com)."}, {"lang": "es", "value": "Zulip es una herramienta de colaboraci\u00f3n en equipo de c\u00f3digo abierto con hilos basados en temas. Zulip Server versi\u00f3n 2.0.0 y superior, es vulnerable a un control de acceso insuficiente con invitaciones de uso m\u00faltiple. Un despliegue de Zulip Server que alberga m\u00faltiples organizaciones es vulnerable a un ataque en el que una invitaci\u00f3n creada en una organizaci\u00f3n (potencialmente como un rol con permisos elevados) puede ser usada para unirse a cualquier otra organizaci\u00f3n. Esto evita cualquier restricci\u00f3n de dominios requeridos en las direcciones de correo electr\u00f3nico de usuarios, puede ser usado para conseguir acceso a organizaciones a las que s\u00f3lo puede accederse por invitaci\u00f3n, y puede ser usado para conseguir acceso con altos privilegios. Este problema ha sido parcheado en versi\u00f3n 4.10. No se presentan medidas de mitigaci\u00f3n conocidas para este problema. ### Parches _\u00bfHa sido parcheado el problema? \u00bfA qu\u00e9 versiones deber\u00edan actualizarse los usuarios?_ ### Mitigaciones _\u00bfSe presenta alguna forma de que los usuarios mitiguen o remedien la vulnerabilidad sin necesidad de actualizarse?_## Referencias _\u00bfSe presenta alg\u00fan enlace que los usuarios puedan visitar para obtener m\u00e1s informaci\u00f3n?_## Para m\u00e1s informaci\u00f3n Si presenta alguna pregunta o comentario sobre este aviso, puede discutirlo en el [servidor de la comunidad de desarrolladores de Zulip](https://zulip.com/developer-community/), o enviar un correo electr\u00f3nico al [equipo de seguridad de Zulip](mailto:security@zulip.com).\n"}], "id": "CVE-2022-21706", "lastModified": "2023-07-24T13:47:59.653", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2022-02-26T00:15:08.260", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://blog.zulip.com/2022/02/25/zulip-cloud-invitation-vulnerability/"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://blog.zulip.com/2022/02/25/zulip-server-4-10-security-release/#cve-2022-21706"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/zulip/zulip/commit/88917019f03860609114082cdc0f31a561503f9e"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/zulip/zulip/security/advisories/GHSA-6xmj-2wcm-p2jc"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}