CVE-2021-32727

The CVE concerns the Nextcloud Android Client and an end-to-end encryption oversight. In versions prior to 3.16.1, the client skipped a step that verifies whether a private key belongs to a previously downloaded public certificate. If a malicious public key is served by the Nextcloud instance, da...

How to send an anonymous email

Sometimes readers ask us how to send an anonymous email or how criminals and scammers manage to send anonymous emails. Since this is not an easy question to answer, because, for starters, there are several ways to interpret the question, I’ll try to give you some information here. Interpret the...

CVE-2021-23211

Cleartext Storage of Sensitive Information in Memory vulnerability in Gallagher Command Centre Server allows Cloud end-to-end encryption key to be discoverable in server memory dumps. This issue affects: Gallagher Command Centre 8.40 versions prior to 8.40.1888 MR3...

CVE-2021-22906

Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users...

CVE-2021-22906

Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users...

Denial of service

Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users...

CVE-2021-22906

Issue summary: CVE-2021-22906 affects Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1. It allows any authenticated user to lock files of other users, creating a denial-of-service condition. Root cause (as stated): improper access control in the End-to-End Encryption app that lets au...

PT-2021-15263 · Nextcloud · Nextcloud End-To-End Encryption

Name of the Vulnerable Software and Affected Versions: Nextcloud End-to-End Encryption versions prior to 1.5.3 Nextcloud End-to-End Encryption versions prior to 1.6.3 Nextcloud End-to-End Encryption versions prior to 1.7.1 Description: The issue allows any authenticated user to lock files of othe...

CVE-2021-32658

Nextcloud Android is the Android client for the Nextcloud open source home cloud system. Due to a timeout issue the Android client may not properly clean all sensitive data on account removal. This could include sensitive key material such as the End-to-End encryption keys. It is recommended that...

CVE-2021-32658 Sensitive data may not be removed from storage on account removal

Nextcloud Android is the Android client for the Nextcloud open source home cloud system. Due to a timeout issue the Android client may not properly clean all sensitive data on account removal. This could include sensitive key material such as the End-to-End encryption keys. It is recommended that...

‘An0m’ Encrypted-Chat Sting Leads to Arrest of 800

Law enforcement agencies have been selling encrypted phones to organized crime gangs for years, monitoring their conversations in what’s being called the biggest law enforcement sting ever. Since 2018, agencies have been overseeing the distribution of hardened, encrypted devices that have enabled...

PT-2021-19836

Name of the Vulnerable Software and Affected Versions Nextcloud Android versions prior to 3.16.1 Description The Nextcloud Android client has a timeout issue that may prevent it from properly cleaning sensitive data when an account is removed. This could include sensitive key material, such as...

Nextcloud Access Control Error Vulnerability (CNVD-2021-102889)

An access control error vulnerability exists in Nextcloud End-to-End Encryption, an open source, self-hosted file synchronization and sharing communication application platform from Nextcloud Germany, which stems from improper access restrictions. The vulnerability allows remote attackers to gain...

Nextcloud 资源管理错误漏洞

An access control error vulnerability exists in Nextcloud End-to-End Encryption, an open source, self-hosted file synchronization and sharing communication application platform from Nextcloud Germany, which stems from improper access restrictions. The vulnerability allows remote attackers to gain...

WhatsApp reverses course, will not limit app functionality

WhatsApp, the end-to-end encrypted messaging service that has lost users, its founders, and a large amount of public goodwill, issued a reversal on its recent privacy policy enforcement measures, clarifying that it will no longer punish users who refuse to share some of their data with the...

End to end encryption folder locking is not properly protected

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WhatsApp Sues Indian Government Over New Internet Regulations

WhatsApp on Wednesday fired a legal salvo against the Indian government to block new regulations that would require messaging apps to trace the "first originator" of messages shared on the platform, thus effectively breaking encryption protections. "Requiring messaging apps to 'trace' chats is th...

WhatsApp calls and messages will break unless you share data with Facebook

WhatsApp told users last week that there was no need for alarm regarding an upcoming privacy policy deadline, as users who refuse to accept the privacy policy will not have their accounts deleted—they will just have their apps rendered useless, eventually incapable of receiving calls and messages...

Nextcloud: Clients do not verify server public key

So this is related to https://hackerone.com/reports/1189162 but also to your RFC Bear with me because there is going to be some hand waving here and there. Since not everything is implemented yet from your RFC. Right now what happens is:...

Nextcloud: End to end encryption folder locking is not properly protected

I do not see the endtoendencryption app listed here. But since you advertise it big on your website and in communication. And the clients that also support it are covered I assume this is part of the program as well. 1. userA has end to end encryption setup 2. userB wants to annoy userA 3. userB...