CVE-2021-32766 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2021-32766 Interim 1 12 2025-02-17T00:36:50Z current 2021-09-09T01:01:33Z 2025-02-17T00:36:50Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2021-32766 Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server. In affected versions the Nextcloud Text application returned different error messages depending on whether a folder existed in a public link share. This is problematic in case the public link share has been created with "Upload Only" privileges. (aka "File Drop"). A link share recipient is not expected to see which folders or files exist in a "File Drop" share. Using this vulnerability an attacker is able to enumerate folders in such a share. Exploitation requires that the attacker has access to a valid affected "File Drop" link share. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.0.1. Users who are unable to upgrade are advised to disable the Nextcloud Text application in the app settings. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/KB2IJ2VSI6P5WFS6XKMPAPGT6545U4WN/ E-Mail link for openSUSE-SU-2021:1250-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/5PSLXDEBLEPENTY4PS62BFVL7QHFQ2RC/ E-Mail link for openSUSE-SU-2021:1252-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/KTAQAEILOXFUPY3SZFAMY4NQGD5OXQX3/ E-Mail link for openSUSE-SU-2021:1253-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/FGLFYZROCOIJAG7C45FNC4EUIMNFJRIL/ E-Mail link for openSUSE-SU-2021:1255-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/4MPG3PDTQCC4GNWH7SOI44CK2TZJDN5R/ E-Mail link for openSUSE-SU-2021:1275-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Package Hub 12 SUSE Package Hub 15 SP1 SUSE Package Hub 15 SP2 SUSE Package Hub 15 SP3 openSUSE Leap 15.2 openSUSE Leap 15.3 nextcloud-20.0.12-31.1 nextcloud-20.0.12-bp151.3.18.1 nextcloud-20.0.12-bp152.2.12.1 nextcloud-20.0.12-bp153.2.6.1 nextcloud-20.0.12-lp152.3.12.1 nextcloud-apache-20.0.12-31.1 nextcloud-apache-20.0.12-bp151.3.18.1 nextcloud-apache-20.0.12-bp152.2.12.1 nextcloud-apache-20.0.12-bp153.2.6.1 nextcloud-apache-20.0.12-lp152.3.12.1 nextcloud-20.0.12-31.1 as a component of SUSE Package Hub 12 nextcloud-apache-20.0.12-31.1 as a component of SUSE Package Hub 12 nextcloud-20.0.12-bp151.3.18.1 as a component of SUSE Package Hub 15 SP1 nextcloud-apache-20.0.12-bp151.3.18.1 as a component of SUSE Package Hub 15 SP1 nextcloud-20.0.12-bp152.2.12.1 as a component of SUSE Package Hub 15 SP2 nextcloud-apache-20.0.12-bp152.2.12.1 as a component of SUSE Package Hub 15 SP2 nextcloud-20.0.12-bp153.2.6.1 as a component of SUSE Package Hub 15 SP3 nextcloud-apache-20.0.12-bp153.2.6.1 as a component of SUSE Package Hub 15 SP3 nextcloud-20.0.12-lp152.3.12.1 as a component of openSUSE Leap 15.2 nextcloud-apache-20.0.12-lp152.3.12.1 as a component of openSUSE Leap 15.2 nextcloud-20.0.12-bp153.2.6.1 as a component of openSUSE Leap 15.3 nextcloud-apache-20.0.12-bp153.2.6.1 as a component of openSUSE Leap 15.3 Nextcloud Text is an open source plaintext editing application which ships with the nextcloud server. In affected versions the Nextcloud Text application returned different error messages depending on whether a folder existed in a public link share. This is problematic in case the public link share has been created with "Upload Only" privileges. (aka "File Drop"). A link share recipient is not expected to see which folders or files exist in a "File Drop" share. Using this vulnerability an attacker is able to enumerate folders in such a share. Exploitation requires that the attacker has access to a valid affected "File Drop" link share. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.0.1. Users who are unable to upgrade are advised to disable the Nextcloud Text application in the app settings. CVE-2021-32766 SUSE Package Hub 12:nextcloud-20.0.12-31.1 SUSE Package Hub 12:nextcloud-apache-20.0.12-31.1 SUSE Package Hub 15 SP1:nextcloud-20.0.12-bp151.3.18.1 SUSE Package Hub 15 SP1:nextcloud-apache-20.0.12-bp151.3.18.1 SUSE Package Hub 15 SP2:nextcloud-20.0.12-bp152.2.12.1 SUSE Package Hub 15 SP2:nextcloud-apache-20.0.12-bp152.2.12.1 SUSE Package Hub 15 SP3:nextcloud-20.0.12-bp153.2.6.1 SUSE Package Hub 15 SP3:nextcloud-apache-20.0.12-bp153.2.6.1 openSUSE Leap 15.2:nextcloud-20.0.12-lp152.3.12.1 openSUSE Leap 15.2:nextcloud-apache-20.0.12-lp152.3.12.1 openSUSE Leap 15.3:nextcloud-20.0.12-bp153.2.6.1 openSUSE Leap 15.3:nextcloud-apache-20.0.12-bp153.2.6.1 critical 5 AV:N/AC:L/Au:N/C:P/I:N/A:N 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N