Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | >= 21.0.0, < 21.0.9.10 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v243-xVendor Advisory
- https://github.com/nextcloud/server/pull/36489Issue Tracking
- https://github.com/nextcloud/server/pull/36489/commits/704eb3aa6cecc0a646f5cca42Patch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v243-xVendor Advisory
- https://github.com/nextcloud/server/pull/36489Issue Tracking
- https://github.com/nextcloud/server/pull/36489/commits/704eb3aa6cecc0a646f5cca42Patch
FAQ
What is CVE-2023-25818?
CVE-2023-25818 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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...
How severe is CVE-2023-25818?
CVE-2023-25818 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-25818?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server.