CVE-2023-25818

Medium

Description

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.

SeverityMedium
CVSS5.3
Exploit probability—
ProductNextcloud Server
PublishedMar 27, 2023
First seenMar 27, 2023
Weakness typeCWE-307CWE-307

How to fix

Update
  • nextcloud nextcloud_server21.0.9.10, 22.2.10.10, 23.0.12.5, 24.0.10, 25.0.4 or later

Affected products

ProductAffected versionsFixed in
nextcloud nextcloud_server21.0.0 ≤ v < 21.0.9.10, 22.0.0 ≤ v < 22.2.10.10, 23.0.0 ≤ v < 23.0.12.5, 24.0.0 ≤ v < 24.0.10, 25.0.0 ≤ v < 25.0.421.0.9.10, 22.2.10.10, 23.0.12.5, 24.0.10, 25.0.4

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CVE-2023-25818 · Nextcloud Server · Dark Radar