История создания GSM-DTMF-MQTT шлюза как замены телеграм (и вообще любых интернет-сервисов) в проектах домашней и не очень автоматизации. Читать далее
An access control weakness in the DTMF tone receiver of Fermax Outdoor Panel allows physical attackers to inject a Dual-Tone-Multi-Frequency (DTMF) tone to invoke an access grant that would allow physical access to a restricted floor/level. By design, only a residential unit owner may allow such an access grant. However, due to incorrect access control, an attacker could inject it via the speaker unit to perform an access grant to gain unauthorized access, as demonstrated by a loud DTMF tone representing…
RIOT 2019.07 contains a NULL pointer dereference in the MQTT-SN implementation (asymcute), potentially allowing an attacker to crash a network node running RIOT. This requires spoofing an MQTT server response. To do so, the attacker needs to know the MQTT MsgID of a pending MQTT protocol message and the ephemeral port used by RIOT's MQTT implementation. Additionally, the server IP address is required for spoofing the packet.
«SIM800/900 против старого телефона: битва за дачу» В системах удалённого мониторинга часто требуется передача данных из точек без покрытия интернета. Классическое решение — GSM-модули семейства SIM800/SIM900, управляемые через AT-команды, но у этого подхода, на мой личный взгляд и опыт,…