Nextcloud: Allows any user to share their "Root" level folder by sharing "."

There seems to be a bug in the "File to Share" feature of Nextcloud Talk. This allows any authenticated user/admin to share their "root" level folder by manipulating the "path": parameter in the JSON body request to the remote API /nextcloud/ocs/v2.php/apps/filessharing/api/v1/shares Steps to rep...

New users can read all Nextcloud Deck data from previous user with same username (NC-SA-2021-007)

A logic error in Nextcloud Deck 1.0.1 allowed new users with a duplicate user identifier to use deck data of a previous deleted user...

Nextcloud: Re-Sharing allows increase of privileges

User A shares a file/folder to user B with re-sharing permission, but readonly - User B shares this file/folder to User C Needs the shareapidefaultpermissions set to 1 all checkmarks off in admin panel - User B can add write permissions for the share to User C User C may also be anonymous using a...

Nextcloud: The password of a mail share is not set if the password is given when the share is created (Nextcloud < 18)

Create a new mail share with a password by using the OCS endpoint with something like: curl -u admin:admin -X POST -H "OCS-APIRequest: true" "http://localhost/ocs/v1.php/apps/filessharing/api/v1/shares?path=welcome.txt&shareType=4&[email protected]&password=plainTextPassword" - Open the...

Nextcloud: The password of a mail share is not hashed if the password is given when the share is created

Create a new mail share with a password by using the OCS endpoint with something like: curl -u admin:admin -X POST -H "OCS-APIRequest: true" "http://localhost/ocs/v1.php/apps/filessharing/api/v1/shares?path=welcome.txt&shareType=4&[email protected]&password=plainTextPassword" - Check the...

openSUSE Security Update : nextcloud (openSUSE-2020-670)

This update for nextcloud to 18.0.4 fixes the following issues : Security issues fixed : - CVE-2020-8154: Fixed an XSS vulnerability when opening malicious PDFs NC-SA-2020-018 boo1171579. - CVE-2020-8155: Fixed a direct object reference vulnerability that allowed attackers to remotely wipe device...

Nextcloud: New users can read all Nextcloud Deck data from previous user with same username

First of all: Sorry, i know there is no scope "Deck" but both Joas and Jus pointed me to hackerone to report this security issue. 1. As an administrator create Nextcloud account "test" 2. Log in as "test" 3. Go to Deck app and create some boards, stacks and cards with personal or confidential...

openSUSE: Security Advisory for nextcloud (openSUSE-SU-2020:0670-1)

The remote host is missing an update for the Copyright C 2020 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

OPENSUSE-SU-2020:0670-1 Security update for nextcloud

This update for nextcloud to 18.0.4 fixes the following issues: Security issues fixed: - CVE-2020-8154: Fixed an XSS vulnerability when opening malicious PDFs NC-SA-2020-018 boo1171579. - CVE-2020-8155: Fixed a direct object reference vulnerability that allowed attackers to remotely wipe devices ...

Security update for nextcloud (moderate)

openSUSE Security Update: Security update for nextcloud Announcement ID: openSUSE-SU-2020:0670-1 Rating: moderate References: 1171572 1171579 Cross-References: CVE-2020-8154 CVE-2020-8155 Affected Products: openSUSE Leap 15.1 An update that fixes two vulnerabilities is now available. Description:...

OPENSUSE-SU-2020:0668-1 Security update for nextcloud

This update for nextcloud to 18.0.4 fixes the following issues: Security issues fixed: - CVE-2020-8154: Fixed an XSS vulnerability when opening malicious PDFs NC-SA-2020-018 boo1171579. - CVE-2020-8155: Fixed a direct object reference vulnerability that allowed attackers to remotely wipe devices ...

OPENSUSE-SU-2020:0667-1 Security update for nextcloud

This update for nextcloud to 18.0.4 fixes the following issues: Security issues fixed: - CVE-2020-8154: Fixed an XSS vulnerability when opening malicious PDFs NC-SA-2020-018 boo1171579. - CVE-2020-8155: Fixed a direct object reference vulnerability that allowed attackers to remotely wipe devices ...

Security update for nextcloud (moderate)

openSUSE Security Update: Security update for nextcloud Announcement ID: openSUSE-SU-2020:0667-1 Rating: moderate References: 1084320 1171572 1171579 Cross-References: CVE-2020-8154 CVE-2020-8155 Affected Products: SUSE Package Hub for SUSE Linux Enterprise 12 An update that solves two...

Security update for nextcloud (moderate)

openSUSE Security Update: Security update for nextcloud Announcement ID: openSUSE-SU-2020:0668-1 Rating: moderate References: 1171572 1171579 Cross-References: CVE-2020-8154 CVE-2020-8155 Affected Products: openSUSE Backports SLE-15-SP1 An update that fixes two vulnerabilities is now available...

Improper access control allows injecting tasks into other users decks (NC-SA-2020-022)

Improper access control in Nextcloud Deck 1.0.0 allowed an attacker to inject tasks into other users decks...

Nextcloud Server Insecure Direct Object Reference Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An insecure direct object reference vulnerability exists in Nextcloud Server version 18.0.2. The vulnerability stems from the program's failure to perform...

Nextcloud Server Cross-Site Scripting Vulnerability (CNVD-2021-28008)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A cross-site scripting vulnerability exists in the Files PDF viewer in Nextcloud Server versions prior to 18.0.3. The vulnerability stems from a lack of prope...

Nextcloud Mail Trust Management Issue Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. A trust management issue vulnerability exists in Nextcloud Mail version 1.1.3, which stems from a lack of authentication to a TLS host. An attacker could...

Nextcloud Server 17.x < 17.0.5, 18.x < 18.0.3 Insecure Direct Object Reference Vulnerability (NC-SA-2020-018)

Nextcloud Server is prone to an insecure direct object reference vulnerability due to a missing ownership check on remote wipe endpoint. SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right...

Nextcloud Server 18.x < 18.0.3 XSS Vulnerability (NC-SA-2020-019)

Nextcloud Server is prone to a cross-site scripting vulnerability in the Files PDF viewer. SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE ...