CVE-2023-41335

Temporary storage of plaintext passwords during password changes in matrix synapse

Severity Score

3.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. When users update their passwords, the new credentials may be briefly held in the server database. While this doesn't grant the server any added capabilities—it already learns the users' passwords as part of the authentication process—it does disrupt the expectation that passwords won't be stored in the database. As a result, these passwords could inadvertently be captured in database backups for a longer duration. These temporarily stored passwords are automatically erased after a 48-hour window. This issue has been addressed in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.

Synapse es un servidor doméstico Matrix de código abierto escrito y mantenido por la Fundación Matrix.org. Cuando los usuarios actualizan sus contraseñas, las nuevas credenciales pueden guardarse brevemente en la base de datos del servidor. Si bien esto no otorga al servidor ninguna capacidad adicional (ya aprende las contraseñas de los usuarios como parte del proceso de autenticación), sí interrumpe la expectativa de que las contraseñas no se almacenen en la base de datos. Como resultado, estas contraseñas podrían quedar capturadas inadvertidamente en las copias de seguridad de la base de datos durante un período más prolongado. Estas contraseñas almacenadas temporalmente se borran automáticamente después de un período de 48 horas. Este problema se solucionó en la versión 1.93.0. Se recomienda a los usuarios que actualicen. No se conocen workarounds para este problema.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-08-28 CVE Reserved
2023-09-26 CVE Published
2024-08-02 CVE Updated
2024-10-02 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-312: Cleartext Storage of Sensitive Information

CAPEC

References (6)

URL	Tag	Source
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2AFB2Y3S2VCPCN5P2XCZTG24MBMZ7DM4	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N6P4QULVUE254WI7XF2LWWOGHCYVFXFY
https://security.gentoo.org/glsa/202401-12

URL	Date	SRC

URL	Date	SRC
https://github.com/matrix-org/synapse/pull/16272	2024-01-07
https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5	2024-01-07

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"		Synapse Search vendor "Matrix" for product "Synapse"				>= 1.66.0 < 1.93.0 Search vendor "Matrix" for product "Synapse" and version " >= 1.66.0 < 1.93.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				37 Search vendor "Fedoraproject" for product "Fedora" and version "37"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				38 Search vendor "Fedoraproject" for product "Fedora" and version "38"		-		Affected