Описание
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 1.25.0, a malicious homeserver could redirect requests to their .well-known file to a large file. This can lead to a denial of service attack where homeservers will consume significantly more resources when requesting the .well-known file of a malicious homeserver. This affects any server which accepts federation requests from untrusted servers. Issue is resolved in version 1.25.0. As a workaround the federation_domain_whitelist setting can be used to restrict the homeservers communicated with over federation.
Ссылки
- PatchThird Party Advisory
- PatchThird Party Advisory
- Third Party Advisory
- PatchThird Party Advisory
- PatchThird Party Advisory
- PatchThird Party Advisory
- Third Party Advisory
- PatchThird Party Advisory
Уязвимые конфигурации
EPSS
4.3 Medium
CVSS3
6.5 Medium
CVSS3
4.3 Medium
CVSS2
Дефекты
Связанные уязвимости
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 1.25.0, a malicious homeserver could redirect requests to their .well-known file to a large file. This can lead to a denial of service attack where homeservers will consume significantly more resources when requesting the .well-known file of a malicious homeserver. This affects any server which accepts federation requests from untrusted servers. Issue is resolved in version 1.25.0. As a workaround the `federation_domain_whitelist` setting can be used to restrict the homeservers communicated with over federation.
Synapse is a Matrix reference homeserver written in python (pypi packa ...
Denial of service attack via .well-known lookups
EPSS
4.3 Medium
CVSS3
6.5 Medium
CVSS3
4.3 Medium
CVSS2