Calendar and addressbook names disclosed (NC-SA-2017-012)

Summary

#Calendar and addressbook names disclosed (NC-SA-2017-012)

Risk level: Low CVSS v3 Base Score: 3.5 (AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N) CWE: Information Exposure Through Directory Listing (CWE-548)

#Description A logical error caused disclosure of calendar and addressbook names to other logged-in users. Note that no actual content of the calendar and adressbook has been disclosed.

#Affected Software

• Nextcloud Server < 11.0.2 (CVE-2017-0895)
• Nextcloud Server < 10.0.4 (CVE-2017-0895)

#Action Taken The error has been fixed and regression tests been added.

#Acknowledgements The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:

• Julius Härtl - Vulnerability discovery and disclosure.