Vulnerability Description
Nextcloud server is an open source home cloud implementation. In affected versions the generated fallback password when creating a share was using a weak complexity random number generator, so when the sharer did not change it the password could be guessable to an attacker willing to brute force it. It is recommended that the Nextcloud Server is upgraded to 24.0.10 or 25.0.4. This issue only affects users who do not have a password policy enabled, so enabling a password policy is an effective mitigation for users unable to upgrade.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | >= 23.0.0, < 23.0.14 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7w2p-rVendor Advisory
- https://github.com/nextcloud/server/pull/36093Issue TrackingPatch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7w2p-rVendor Advisory
- https://github.com/nextcloud/server/pull/36093Issue TrackingPatch
FAQ
What is CVE-2023-28835?
CVE-2023-28835 is a vulnerability with a CVSS score of 3.5 (LOW). Nextcloud server is an open source home cloud implementation. In affected versions the generated fallback password when creating a share was using a weak complexity random number generator, so when th...
How severe is CVE-2023-28835?
CVE-2023-28835 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-28835?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server.