PT-2017-2015 · Cisco · Cisco Ios Xe+1
Publicado
2017-03-22
·
Atualizado
2020-09-04
·
CVE-2017-3864
CVSS v3.1
8.6
Alta
| Vetor | AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Cisco IOS versions 12.2, 12.4, and 15.0 through 15.6
Cisco IOS XE versions 3.3 through 3.7
Description
A vulnerability in the DHCP client implementation 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.
Recommendations
For Cisco IOS versions 12.2, 12.4, and 15.0 through 15.6, update to a fixed release of Cisco IOS Software.
For Cisco IOS XE versions 3.3 through 3.7, update to a fixed release of Cisco IOS XE Software.
As a temporary workaround, consider restricting the use of the DHCP client configuration to minimize the risk of exploitation.
Correção
DoS
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Cisco Ios
Cisco Ios Xe