title: Weak Master Keys
description: LibreOffice supports the storage of passwords for web connections in the user’s configuration database. The stored passwords are encrypted with a single master key provided by the user. A flaw in LibreOffice existed where master key was poorly encoded resulting in weakening its entropy from 128 to 43 bits making the stored passwords vulerable to a brute force attack if an attacker has access to the users stored config. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.3.
problem types: CWE-326 Inadequate Encryption Strength
affected:
{
vendor: The Document Foundation
product: LibreOffice
versions:
version: 7.2, status: affected, lessThan: 7.2.7, versionType: custom
version: 7.3, status: affected, lessThan: 7.3.3, versionType: custom
}