Rockwell Automation Stratix Ethernet Switches < 15.3 IOS DHCP Reload

high Nessus Network Monitor Plugin ID 720228
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Synopsis

Rockwell Automation Stratix Ethernet Switches allow a remote attacker to cause a denial of service via crafted DHCPv4 packets.

Description

Rockwell Automation Stratix Ethernet Switches versions prior to 15.3 use a vulnerable version of Cisco IOS or IOS XE. A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow condition on the affected device, which will cause the device to reload and result in a DoS condition. Cisco Bug IDs: CSCvg62730.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04,https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05,https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1

Plugin Details

Severity: High

ID: 720228

Family: SCADA

Published: 5/8/2019

Updated: 9/30/2019

Risk Information

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Patch Publication Date: 4/17/2018

Vulnerability Publication Date: 4/17/2018

Reference Information

CVE: CVE-2018-0172

BID: 103552