CVE-2021-29432 Information

Description

Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails for example. This issue has been fixed in 4469d1d.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

Reference

https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42 https://pypi.org/project/matrix-sydent/ https://github.com/matrix-org/sydent/releases/tag/v2.3.0

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.7