CVE-2019-1957 MEDIUM

CVE-2019-1957: Cisco IoT Field Network Director TLS Renegotiation Denial of Service Vulnerability

Vendor Cisco
Product Cisco IoT Field Network Director (IoT-FND)
Weakness CWE-399
Published August 8, 2019
Last update November 19, 2024

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

A vulnerability in the web interface of Cisco IoT Field Network Director could allow an unauthenticated, remote attacker to trigger high CPU usage, resulting in a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of Transport Layer Security (TLS) renegotiation requests. An attacker could exploit this vulnerability by sending renegotiation requests at a high rate. A successful exploit could increase the resource usage on the system, eventually leading to a DoS condition.

Key dates

02Disclosure timeline

August 8, 2019 CVE published
November 19, 2024 Record updated