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CVE-2021-21392

Опубликовано: 12 апр. 2021
Источник: nvd
CVSS3: 6.3
CVSS2: 4.9
EPSS Низкий

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 1.28.0 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.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:*
Версия до 1.28.0 (исключая)
Конфигурация 2
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

EPSS

Процентиль: 42%
0.002
Низкий

6.3 Medium

CVSS3

4.9 Medium

CVSS2

Дефекты

CWE-601
CWE-601

Связанные уязвимости

CVSS3: 6.3
ubuntu
почти 5 лет назад

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.

CVSS3: 6.3
debian
почти 5 лет назад

Synapse is a Matrix reference homeserver written in python (pypi packa ...

CVSS3: 6.3
github
почти 5 лет назад

Open redirect via transitional IPv6 addresses on dual-stack networks

EPSS

Процентиль: 42%
0.002
Низкий

6.3 Medium

CVSS3

4.9 Medium

CVSS2

Дефекты

CWE-601
CWE-601