CVE Vulnerability

CVE-2019-11340

util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowed_local_3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on user@bad.example.net@good.example.com returns the user@bad.example.net substring.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://twitter.com/matrixdotorg/status/1118934335963500545 Third Party Advisory
https://matrix.org/blog/2019/04/18/security-update-sydent-1-0-2/ Release Notes Vendor Advisory
https://github.com/matrix-org/sydent/compare/7c002cd...09278fb Patch Third Party Advisory
https://github.com/matrix-org/sydent/commit/4e1cfff53429c49c87d5c457a18ed435520044fc Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:matrix:sydent:*:*:*:*:*:*:*:*
Information

Published : 2019-04-19 02:29

Updated : 2019-04-22 05:52

NVD link : CVE-2019-11340

Mitre link : CVE-2019-11340

Products Affected
No products.
CWE
CWE-20