| ID |
CVE-2018-19417
|
| Sažetak |
An issue was discovered in the MQTT server in Contiki-NG before 4.2. The function parse_publish_vhdr() that parses MQTT PUBLISH messages with a variable length header uses memcpy to input data into a fixed size buffer. The allocated buffer can fit only MQTT_MAX_TOPIC_LENGTH (default 64) bytes, and a length check is missing. This could lead to Remote Code Execution via a stack-smashing attack (overwriting the function return address). Contiki-NG does not separate the MQTT server from other servers and the OS modules, so access to all memory regions is possible. |
| Reference |
|
| CVSS |
| Base: | 10.0 |
| Impact: | 10.0 |
| Exploitability: | 10.0 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| COMPLETE |
COMPLETE |
COMPLETE |
|
| CVSS vektor |
AV:N/AC:L/Au:N/C:C/I:C/A:C |
| Zadnje važnije ažuriranje |
04-02-2019 - 18:19 |
| Objavljeno |
21-11-2018 - 20:29 |
