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Create: 2025-04-09 Update: 2025-07-08 13:42:48

WhatsApp Desktop для Windows: осторожно, JPEG может оказаться EXE!

Уязвимость (CVE-2025-30401) в WhatsApp Desktop для Windows (версии до 2.2450.6) позволяет выполнить произвольный код через поддельное вложение. Проблема кроется в обработке MIME-типов и расширений файлов.

🚩 Как работает:
WhatsApp отображает превью вложения на основе его MIME-типа (например, image/jpeg). Однако, когда пользователь кликает для открытия файла, приложение передает его системе на основе расширения имени файла (например, .exe

То есть: атакующий может создать файл картинка.jpeg.exe, указать для него MIME-тип image/jpeg, и отправить жертве. Пользователь увидит превью картинки, кликнет, но вместо просмотра изображения запустит исполняемый файл.

❗️ Требуется взаимодействие с пользователем – жертва должна сама кликнуть на вредоносное вложение. Учитывая доверчивость многих пользователей ("прислали же в WhatsApp, значит, безопасно"), особенно в групповых чатах, это вполне реальный вектор атаки.

Последствия печальны: Выполнение произвольного кода, кража данных, установка вредоносов, компрометация аккаунта. Баг пофикшен в версии 2.2450.6 или выше.

Никогда не доверяй MIME-типу больше, чем расширению файла. Особенно если его прислали в WhatsApp.

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How to Mute Conversations

With your “Archived Chats” folder finally hidden from view in the chat list area, if the other party decides to send you a new message, the conversation will pop up again in your regular chat feed. To ensure your conversation remains hidden, mute the conversation in question by following the below instructions.Find your “Archived Chats” folder. If you’ve hidden it from view on your mobile, swipe from the top of the app and release to bring back the folder. Long-tap on the conversation in question and select the “Sound” icon at the top. Select “Disable” to stop worrying the conversation will resurface in the app’s main area. On PC, tap on the hamburger menu in the upper-left corner. Select “Archived chats” at the top to get the conversation you hid. Select the chat in question, right-click on it and opt for the “Mute Notifications” option. Hit “Mute forever” or “Mute for…” and select a time frame that suits your needs.

WhatsApp Desktop для Windows: осторожно

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