CVE-2017-3864

high
New! CVE Severity Now Using CVSS v3

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Description

A vulnerability in the DHCP client implementation of Cisco IOS (12.2, 12.4, and 15.0 through 15.6) and Cisco IOS XE (3.3 through 3.7) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability occurs during the parsing of a crafted DHCP packet. An attacker could exploit this vulnerability by sending crafted DHCP packets to an affected device that is configured as a DHCP client. A successful exploit could allow the attacker to cause a reload of an affected device, resulting in a DoS condition. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or IOS XE Software and using a specific DHCP client configuration. Cisco Bug IDs: CSCuu43892.

References

http://www.securityfocus.com/bid/97012

http://www.securitytracker.com/id/1038103

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-dhcpc

Details

Source: MITRE

Published: 2017-03-22

Updated: 2020-09-04

Risk Information

CVSS v2

Base Score: 7.8

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

Impact Score: 6.9

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 8.6

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 3.9

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:*

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions from 15.0 to 15.6 (inclusive)

cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions from 3.3 to 3.7 (inclusive)

Tenable Plugins

View all (2 total)

IDNameProductFamilySeverity
99027Cisco IOS XE DHCP Client DoS (cisco-sa-20170322-dhcpc)NessusCISCO
high
99026Cisco IOS DHCP Client DoS (cisco-sa-20170322-dhcpc)NessusCISCO
high