CVE-2023-25818CWE-307

Missing brute force protection on password reset token in Nextcloud Server

Medium · published March 27, 2023

CVSS v3.1
5.3
EPSS
1%
Percentile
48.1
In the wild
Unconfirmed
What it is

Nextcloud server is an open source, personal cloud implementation. In affected versions a malicious user could try to reset the password of another user and then brute force the 62^21 combinations for the password reset token. As of commit `704eb3aa` password reset attempts are now throttled. Note that 62^21 combinations would significant compute resources to brute force. None the less it is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. There are no known workarounds for this vulnerability.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00602 · 48.1th percentile
Weakness
CWE-307 · Improper Restriction of Excessive Authentication Attempts
Published
2023-03-27T20:00Z
EPSS history
Timeline
  • 27 MAR 20:00Z
    Missing brute force protection on password reset token in Nextcloud Server
    cvelistv5