CVE-2022-39335

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. The Matrix Federation API allows remote homeservers to request the authorization events in a room. This is necessary so that a homeserver receiving some events can validate that those events are legitimate and permitted in their room. However, in versions of Synapse up to and including 1.68.0, a Synapse homeserver answering a query for authorization events does not sufficiently check that the requesting server should be able to access them. The issue was patched in Synapse 1.69.0. Homeserver administrators are advised to upgrade.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/matrix-org/synapse/issues/13288	Issue Tracking
https://github.com/matrix-org/synapse/pull/13823	Patch
https://github.com/matrix-org/synapse/security/advisories/GHSA-45cj-f97f-ggwv	Mitigation Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2MBNMZAFY4RCZL2VGBGAPKGB4JUPZVS/
https://github.com/matrix-org/synapse/issues/13288	Issue Tracking
https://github.com/matrix-org/synapse/pull/13823	Patch
https://github.com/matrix-org/synapse/security/advisories/GHSA-45cj-f97f-ggwv	Mitigation Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T2MBNMZAFY4RCZL2VGBGAPKGB4JUPZVS/

Configurations

Configuration 1 (hide)

cpe:2.3:a:matrix:synapse:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-05-26 14:15

Updated : 2024-11-21 07:18

NVD link : CVE-2022-39335

Mitre link : CVE-2022-39335

CVE.ORG link : CVE-2022-39335

JSON object : View

Products Affected

matrix

synapse

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-862

Missing Authorization

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