CVE-2021-29432

Malicious users could control the content of invitation emails

Severity Score

5.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Sydent es un servidor de identidad de matriz de referencia. Un usuario malicioso podría abusar de Sydent para enviar correos electrónicos arbitrarios desde la dirección de correo electrónico de Sydent. Esto podría ser usado para construir correos electrónicos de phishing plausibles, por ejemplo. Este problema ha sido corregido en versión 4469d1d

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-30 CVE Reserved
2021-04-15 CVE Published
2023-03-08 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation

CAPEC

References (4)

URL	Tag	Source
https://github.com/matrix-org/sydent/releases/tag/v2.3.0	Release Notes
https://pypi.org/project/matrix-sydent	Product

URL	Date	SRC

URL	Date	SRC
https://github.com/matrix-org/sydent/commit/4469d1d42b2b1612b70638224c07e19623039c42	2022-08-03
https://github.com/matrix-org/sydent/security/advisories/GHSA-mh74-4m5g-fcjx	2022-08-03

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Matrix Search vendor "Matrix"		Sydent Search vendor "Matrix" for product "Sydent"				< 2.3.0 Search vendor "Matrix" for product "Sydent" and version " < 2.3.0"		-		Affected