// For flags

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

0
*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
CVSS Scores
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
  • 2024-08-26 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-312: Cleartext Storage of Sensitive Information
CAPEC
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