CVE Vulnerability

CVE-2018-12423

In Synapse before 0.31.2, unauthorised users can hijack rooms when there is no m.room.power_levels event in force.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://matrix.org/blog/2018/06/14/security-update-synapse-0-31-2/ Vendor Advisory
https://github.com/matrix-org/matrix-doc/issues/1304 Third Party Advisory
https://bugs.debian.org/901549 Mailing List Third Party Advisory
Configurations

Configuration 1

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

Published : 2018-06-14 09:29

Updated : 2019-10-03 12:03

NVD link : CVE-2018-12423

Mitre link : CVE-2018-12423

Products Affected
No products.
CWE
NVD-CWE-noinfo