CVE-2019-1957: A vulnerability in the web interface of Cisco IoT Field Network Director could allow an unauthenticated, remote attacker to trigger high CPU usage, resulting…

PriorityP343high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

1.97%

78.0th percentile

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.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_iot_field_network_director	>= unspecified < n/a	n/a
cisco	iot_field_network_director	< 4.4.2-11	4.4.2-11
cisco	iot_field_network_director_tls_renegotiation	—	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C

vendor_cisco5.3MEDIUM

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