CVE-2023-41335

2023-09-2715:19:30

CWE-312

[email protected]

web.nvd.nist.gov

cve-2023-41335

synapse

matrix homeserver

password update

database storage

security vulnerability

authentication

database backup

upgrade advice

3.7 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

4.2 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

24.3%

JSON

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.

Affected configurations

Vulners

NVD

Node

matrix-orgsynapseRange1.66.0–1.93.0

CPENameOperatorVersion
matrix:synapsematrix synapselt1.93.0

CPE	Name	Operator	Version
matrix:synapse	matrix synapse	lt	1.93.0

CNA Affected

[
  {
    "vendor": "matrix-org",
    "product": "synapse",
    "versions": [
      {
        "version": ">= 1.66.0, < 1.93.0",
        "status": "affected"
      }
    ]
  }
]