CVE Tools
Sign in

CVE-2023-41335

Temporary storage of plaintext passwords during password changes in matrix synapse

Published: Sep 26, 2023Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-312
NVD MITRE
3.7CVSSLOW
EPSS Score
0.4%
Top 72.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:HPR:HUI:RS:CC:LI:LA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-312

Affected Products

synapsematrix-org
On-premWeb App
Communications / messaging-chat
synapsematrix
On-premWeb App
Communications / messaging-chat
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
matrix-synapsePyPIOSS Libraries
matrix-orgoss-projectDECommunicationsaka synapse, matrix-js-sdk, matrix appservice irc
matrixoss-projectGBCommunicationsaka synapse, matrix irc bridge, javascript sdk
fedoraprojectoss-projectUSOperating Systemsaka fedora project
pypipackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5
github.com
https://github.com/matrix-org/synapse/pull/16272
github.com
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65QPC55I4D27HIZP7H2NQ34EOXHPP4AO/
lists.fedoraproject.org
and 11 more references View all →

Timeline

Published
Sep 26, 2023
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2023-41335 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows