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This repository has been archived by the owner on Apr 26, 2024. It is now read-only.

Temporary storage of plaintext passwords during password changes

Low
erikjohnston published GHSA-4f74-84v3-j9q5 Sep 26, 2023

Package

pip matrix-synapse (pip)

Affected versions

>= 1.66.0, < 1.93.0

Patched versions

1.93.0

Description

Impact

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.

Patches

#16272

References

This bug was due to a regression in #13188.

Severity

Low
3.7
/ 10

CVSS base metrics

Attack vector
Local
Attack complexity
High
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N

CVE ID

CVE-2023-41335

Weaknesses

No CWEs