Law Enforcement Access to Chat Data and Metadata

A January 2021 FBI document outlines what types of data and metadata can be lawfully obtained by the FBI from messaging apps. Rolling Stone broke the story and its been written about elsewhere. I dont see a lot of surprises in the document. Lots of apps leak all sorts of metadata: iMessage and...

Matrix clients -- several vulnerabilities

Matrix developers report: Today we are releasing security updates to libolm, matrix-js-sdk, and several clients including Element Web / Desktop. Users are encouraged to upgrade as soon as possible. These releases mitigate a buffer overflow in olmsessiondescribe, a libolm debugging function used b...

Here’s what data the FBI can get from WhatsApp, iMessage, Signal, Telegram, and more

Not every secure messaging app is as safe as it would like us to think. And some are safer than others. A recently disclosed FBI training document shows how much access to the content of encrypted messages from secure messaging services US law enforcement can gain and what they can learn about yo...

Adopting a Zero Trust approach throughout the lifecycle of data

Instead of believing everything behind the corporate firewall is safe, the Zero Trust model assumes breach and verifies each request as though it originates from an uncontrolled network. Regardless of where the request originates or what resource it accesses, Zero Trust teaches us to “never trust...

Keybase Information Disclosure Vulnerability

Keybase is a social networking platform based on PGP technology that supports end-to-end encryption.An information disclosure vulnerability exists in Keybase Client for Android before version 5.8.0 and Keybase Client for iOS before version 5.8.0, which stems from the client's inability to properl...

Keybase path traversal vulnerability

Keybase is a PGP technology-based social networking platform that supports end-to-end encryption.Keybase Client for Windows prior to version 5.7.0 is vulnerable to a path traversal vulnerability that stems from a networked system or product failing to properly filter special elements in a resourc...

CVE-2021-40824

A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 aka Matrix SDK for Android before 1.2.2 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys via crafted Matrix protocol messages that were...

CVE-2021-40824

A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 aka Matrix SDK for Android before 1.2.2 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys via crafted Matrix protocol messages that were...

Code injection

A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 aka Matrix SDK for Android before 1.2.2 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys via crafted Matrix protocol messages that were...

CVE-2021-40824

A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 aka Matrix SDK for Android before 1.2.2 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys via crafted Matrix protocol messages that were...

WhatsApp’s End-to-End Encryption Isn’t Actually Broken

End-to-end encryption isn’t designed to secure messages against the intended recipients. New revelations about WhatsApp’s moderator access to messages last week might seem like they run counter to the company’s privacy-forward brand, but a closer look shows the messaging service’s privacy...

WhatsApp to Finally Let Users Encrypt Their Chat Backups in the Cloud

WhatsApp on Friday announced it will roll out support for end-to-end encrypted chat backups on the cloud for Android and iOS users, paving the way for storing information such as chat messages and photos in Apple iCloud or Google Drive in a cryptographically secure manner. The optional feature,...

Telegram Desktop 2.9.2 - Denial of Service Exploit

Exploit Title: Telegram Desktop 2.9.2 - Denial of Service PoC Exploit Author: Aryan Chehreghani Vendor Homepage: https://telegram.org Software Link: https://telegram.org/dl/desktop/win64 Tested Version: 2.9.2 x64 Tested on OS: Windows 10 Enterprise About App Telegram is a messaging app with a foc...

CVE-2021-32728

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a privat...

CVE-2021-32728

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a privat...

DEBIAN-CVE-2021-32728

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a privat...

CVE-2021-32728 End-to-end encryption device setup did not verify public key

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a privat...

CVE-2021-32728

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a privat...

End-to-end encryption device setup did not verify public key

None...

CVE-2021-32728: Improper Certificate Validation

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a privat...