CVE Vulnerability

CVE-2019-18835

Matrix Synapse before 1.5.0 mishandles signature checking on some federation APIs. Events sent over /send_join, /send_leave, and /invite may not be correctly signed, or may not come from the expected servers.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/matrix-org/synapse/releases/tag/v1.5.0 Release Notes Third Party Advisory
https://github.com/matrix-org/synapse/pull/6262 Patch Third Party Advisory
Configurations

Configuration 1

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

Published : 2019-11-08 12:15

Updated : 2020-08-24 05:37

NVD link : CVE-2019-18835

Mitre link : CVE-2019-18835

Products Affected
No products.
CWE
CWE-345