PT-2019-17683 · Nextcloud · Nextcloud Android App

Name of the Vulnerable Software and Affected Versions: Nextcloud Android app versions prior to 3.0.0 Description: The issue allows for the destruction of a local cache when a harmful query is executed, requiring the user to reset up the account. This occurs due to SQL Injection in the Nextcloud...

Name of private conversations leaked when linked via projects to a shared item (NC-SA-2020-011)

Improper access control in Nextcloud Talk 6.0.3 leaks the existance and the name of private conversations when linked them to another shared item via the projects feature...

Improper neutralization of item names in projects feature (NC-SA-2020-010)

Improper neutralization of file names, conversation names and board names in Nextcloud Server 16.0.3, Nextcloud Talk 6.0.3 and Nextcloud Deck 0.6.5 causes an XSS when linking them with each others in a project...

Improper neutralization of item names in projects feature (NC-SA-2020-008)

Improper neutralization of file names, conversation names and board names in Nextcloud Server 16.0.3, Nextcloud Talk 6.0.3 and Nextcloud Deck 0.6.5 causes an XSS when linking them with each others in a project...

Improper neutralization of item names in projects feature (NC-SA-2020-009)

Improper neutralization of file names, conversation names and board names in Nextcloud Server 16.0.3, Nextcloud Talk 6.0.3 and Nextcloud Deck 0.6.5 causes an XSS when linking them with each others in a project...

Nextcloud: Talk - Leak of password-protected room name via already existent resource addition

CVSS ---- Medium 4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Description ----------- Affected: Talk / Spreed 6.0.3 The name of shared but password-protected rooms leaks to low-privileged authenticated users. An attacker does not need to guess room IDs, but can simply iterate over IDs to gath...

Nextcloud: Persistent XSS via filename in projects

CVSS ---- Medium 5.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Description ----------- Affected: Talk / Spreed 6.0.3 The name of a file is echoed without encoding when moving the mouse onto it in the projects tab of a conversation, leading to persistent XSS. A successful attack requires an...

Nextcloud: Clickjacking on https://download.nextcloud.com/

the vulnerability is Clickjacking Steps for Reproduce: 1. Create a script like this Clickjacking! The Site is Vulnerability Clickjacking 2. Enter a file name after saving it in the .html format Then the web is Vuln Clickjacking Sorry bad english im indonesian Impact By using Clickjacking techniqu...

Nextcloud: Clickjacking on https://nextcloud.com/

the vulnerability is Clickjacking Steps for Reproduce: 1. Create a script like this Clickjacking! The Site is Vulnerability Clickjacking 2. Enter a file name after saving it in the .html format Then the web is Vuln Clickjacking Sorry bad english im indonesian Impact By using Clickjacking techniqu...

Improper check for access to application database (NC-SA-2018-015)

A too permissive check allowed an installed application that contained the Nextcloud client package name to obtain access to the database of the Nextcloud application. At time of disclosure there are no applications with in the Google Play Store that fullfill this requirement...

Bypass lock protection in Android app (NC-SA-2019-006)

If an attacker has physical access to an Android smartphone without a screen lock, but with nextcloud installed and set up, they can easily access the nextcloud-files even if the nextcloud app is locked with a fingerprint or pin...

Thumbnails of files leaked via Android content provider (NC-SA-2019-007)

If an attacker has physical access to an Android smartphone without a screen lock, but with nextcloud installed and set up, he can easily access the nextcloud-files even if the nextcloud app is locked with a fingerprint or pin...

Bypass lock protection in Android app (NC-SA-2019-008)

If an attacker has physical access to an Android smartphone without a screen lock, but with nextcloud installed and set up, they can circumvent the passcode protection by repeatedly opening and closing the app in a very short time...

Nextcloud: Clickjacking on https://download.nextcloud.com

This page is vulnerable to clickjacking https://download.nextcloud.com Steps to Reproduce: 1. Copy the following code and save it as clickjacking.html Clickjack test page Website is vulnerable to clickjacking! 2. Open it in browser You can see the website is vulnerable to clickjacking Impact Anyo...

Nextcloud: User can delete data in shared folders he's not autorized to access

Steps to reproduce 1. create a group folder named TEST and share with "admin group" and "test group", marking the advanced permission flag 2. create two folders inside the main share: visible and invisible 3. inside "invisible" folder create a test file let's say something like "test.txt" 4. set...

Server-Side request forgery in New-Subscription feature of the calendar app (NC-SA-2019-014)

An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application...

Nextcloud: Code injection in macOS Desktop Client

Vulnerability description I've identified a code injection vulnerability in your macOS desktop client. Any malicious application, running with standard user permissions is able to exploit this vulnerability and execute code in your application's context. Requirements In order to exploit this...

Nextcloud: Delete permission can be added on reshare

user0 creates folder /test user0 creates file /test/file.txt user0 shares folder /test with user1 with read+share permissions 17 user1 receives the folder /test and can read-download /test/file.txt but not delete - good user1 uses the sharing API to share folder /test with user2, and specifies...

Nextcloud: Some HTML Tags are Getting Executed in com.nextcloud.client

What is the Vulnerability? HTML Tags such as , , and are Getting Executed in Next Cloud Client Mobile Application for Android which can then Results to Code Injection. Reproduction Steps 1. Using Next Cloud Client Mobile App on Android, Rename a Folder to test Our HTML tag Was Executed F518303...

Nextcloud: Passcode Protection in Android Devices Can be Bypassed.

What is The Vulnerability? The Passcode can be bypassed by calling a MainLoginActivity which is com.owncloud.android.ui.activity.FileDisplayActivity , We have successfully bypassed the passcode and are redirected to the App's User Interface. of the user’s credentials: Android Version: 9 Non Roote...