Advisory Details

November 2nd, 2018

Losant Arduino MQTT Client Stack-based Buffer Overflow Remote Code Execution Vulnerability

CVE ID	CVE-2018-17614
CVSS SCORE	5.4, AV:A/AC:M/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Losant
AFFECTED PRODUCTS	Arduino MQTT Client
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Losant Arduino MQTT Client. User interaction is not required to exploit this vulnerability. The specific flaw exists within the parsing of MQTT PUBLISH packets. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
ADDITIONAL DETAILS	Losant has issued an update to correct this vulnerability. More details can be found at: https://github.com/knolleary/pubsubclient/releases/tag/v2.7
DISCLOSURE TIMELINE	2018-07-18 - Vulnerability reported to vendor 2018-11-02 - Coordinated public release of advisory 2018-11-02 - Advisory Updated
CREDIT	Federico "phretor" Maggi of Trend Micro Security Research and Davide "_ocean" Quarta

BACK TO ADVISORIES