Nextcloud: Denial of Service by requesting to reset a password

Description: I believe that this is posible due to the brute force protection that makes all request last for 30 seconds which in this case is using all the PHP workers avalible in the pool, so the only way to defend yourself is setting up a limit or having a lot of resources. How to reproduce: I...

Nextcloud: xss on setup config page

Nextcloud version: 18.0.1 In setup config page，setting mysql Username with payloadalert1, and set others. F739076 then submit . F739077 this gif will show poc: F739069 Impact This is because the code does not filter dangerous characters. so dangerous characters need to be escaped...

openSUSE Security Update : webkit2gtk3 (openSUSE-2020-278)

This update for webkit2gtk3 to version 2.26.4 fixes the following issues : Security issues fixed : - CVE-2019-8835: Fixed multiple memory corruption issues bsc1161719. - CVE-2019-8844: Fixed multiple memory corruption issues bsc1161719. - CVE-2019-8846: Fixed a use-after-free issue bsc1161719. -...

Security update for webkit2gtk3 (important)

openSUSE Security Update: Security update for webkit2gtk3 Announcement ID: openSUSE-SU-2020:0278-1 Rating: important References: 1159329 1161719 1163809 Cross-References: CVE-2019-8835 CVE-2019-8844 CVE-2019-8846 CVE-2020-3862 CVE-2020-3864 CVE-2020-3865 CVE-2020-3867 CVE-2020-3868 Affected...

Nextcloud: Unrestricted file upload on the image of contacts

When uploading an image for a contact, on the file upload pop up window it shows that it can accept all files of any data type. For my testing I uploaded a sample executable, named 'SimpleCrackMe.exe' which doesn't do really do anything without passing parameters to it on a terminal when running...

SUSE SLED15 / SLES15 Security Update : webkit2gtk3 (SUSE-SU-2020:0468-1)

This update for webkit2gtk3 to version 2.26.4 fixes the following issues : Security issues fixed : CVE-2019-8835: Fixed multiple memory corruption issues bsc1161719. CVE-2019-8844: Fixed multiple memory corruption issues bsc1161719. CVE-2019-8846: Fixed a use-after-free issue bsc1161719...

SUSE-SU-2020:0468-1 Security update for webkit2gtk3

This update for webkit2gtk3 to version 2.26.4 fixes the following issues: Security issues fixed: - CVE-2019-8835: Fixed multiple memory corruption issues bsc1161719. - CVE-2019-8844: Fixed multiple memory corruption issues bsc1161719. - CVE-2019-8846: Fixed a use-after-free issue bsc1161719. -...

Updated nextcloud packages fix security vulnerability

Updated nextcloud packages fix security vulnerability: A bug in Nextcloud Server causes the workflow rules to depend their behavior on the file extension when checking file mimetypes CVE-2019-15613. The nextcloud package has been updated to version 15.0.14, fixing this issue and other bugs...

MGASA-2020-0099 Updated nextcloud packages fix security vulnerability

Updated nextcloud packages fix security vulnerability: A bug in Nextcloud Server causes the workflow rules to depend their behavior on the file extension when checking file mimetypes CVE-2019-15613. The nextcloud package has been updated to version 15.0.14, fixing this issue and other bugs...

Nextcloud: Mail does not verify IMAP/SMTP host connected via TLS

The Mail app should verify that the servers it connects to are listed in the certificate's CN. Otherwise the connection should be aborted. Originally reported at https://github.com/nextcloud/mail/issues/308 Impact The app could be forced into connecting to an insecure server...

openSUSE Security Update : nextcloud (openSUSE-2020-220)

This update for nextcloud fixes the following issues : Nextcloud was updated to 15.0.14 : - NC-SA-2020-002, CVE-2019-15613: workflow rules to depend their behaviour on the file extension when checking file mimetypes boo1162766 - NC-SA-2019-016, CVE-2019-15623: Exposure of Private Information caus...

OPENSUSE-SU-2020:0229-1 Security update for nextcloud

This update for nextcloud fixes the following issues: Nextcloud was updated to 15.0.14: - NC-SA-2020-002, CVE-2019-15613: workflow rules to depend their behaviour on the file extension when checking file mimetypes boo1162766 - NC-SA-2019-016, CVE-2019-15623: Exposure of Private Information caused...

Nextcloud iOS Cross-Site Scripting Vulnerability

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 Nextcloud iOS. The vulnerability stems from a lack of proper validation of client-side data by the web...

Nextcloud Server Access Control Error Vulnerability (CNVD-2020-12757)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An Access Control Error vulnerability exists in Nextcloud Server. The vulnerability arises from a network system or product not properly restricting access to...

Nextcloud Server Injection Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An injection vulnerability exists in Nextcloud Server. The vulnerability arises from a lack of proper validation of user input data by a network system or...

Nextcloud Android Access Control Error Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An access control error vulnerability exists in Nextcloud Android. The vulnerability arises from a network system or product not properly restricting access t...

Nextcloud Server, Talk and Deck Cross-Site Scripting Vulnerabilities

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 Nextcloud Server, Talk and Deck. The vulnerability stems from a lack of proper validation of client-side data b...

Nextcloud Data Forgery Issue Vulnerability

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. Nextcloud is vulnerable to a data forgery issue. The vulnerability arises from a network system or product that does not adequately validate the origin or...

Code injection in Nextcloud Desktop Client for macOS (NC-SA-2020-016)

A code injection in Nextcloud Desktop Client 2.6.2 for macOS allowed to load arbitrary code when starting the client with DYLDINSERTLIBRARIES set in the enviroment...

Nextcloud Server Authorization Issues Vulnerability (CNVD-2020-12763)

Nextcloud is a set of open source self-hosted file synchronization and sharing communication application platform from Nextcloud, Germany. An authorization issue vulnerability exists in Nextcloud Server. The vulnerability stems from a lack of authentication measures or insufficient authentication...