CVE-2018-0155 - A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Cata

CVE-2018-0155

Summary

A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial of service (DoS) condition. The vulnerability is due to insufficient error handling when the BFD header in a BFD packet is incomplete. An attacker could exploit this vulnerability by sending a crafted BFD message to or across an affected switch. A successful exploit could allow the attacker to trigger a reload of the system. This vulnerability affects Catalyst 4500 Supervisor Engine 6-E (K5), Catalyst 4500 Supervisor Engine 6L-E (K10), Catalyst 4500 Supervisor Engine 7-E (K10), Catalyst 4500 Supervisor Engine 7L-E (K10), Catalyst 4500E Supervisor Engine 8-E (K10), Catalyst 4500E Supervisor Engine 8L-E (K10), Catalyst 4500E Supervisor Engine 9-E (K10), Catalyst 4500-X Series Switches (K10), Catalyst 4900M Switch (K5), Catalyst 4948E Ethernet Switch (K5). Cisco Bug IDs: CSCvc40729.

References

Vulnerable Configurations

cpe:2.3:o:cisco:ios:3.6\(2\)e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:3.6\(2\)e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6\(2\)e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6\(2\)e:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500-x_series_switches_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500-x_series_switches_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6-e_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_6l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500_supervisor_engine_7l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_8l-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_9-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4500e_supervisor_engine_9-e_\(k10\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4900m_switch_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4900m_switch_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4948e_ethernet_switch_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_4948e_ethernet_switch_\(k5\):-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8300_industrial_managed_ethernet_switch:-:*:*:*:*:*:*:*
cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8300_industrial_managed_ethernet_switch:-:*:*:*:*:*:*:*

CVSS

Base:	7.8 (as of 04-09-2020 - 18:24)
Impact:
Exploitability:

CWE

CWE-755

CAPEC

Access

Vector	Complexity	Authentication
NETWORK	LOW	NONE

Impact

Confidentiality	Integrity	Availability
NONE	NONE	COMPLETE

cvss-vector via4

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

refmap via4

bid	103565
confirm	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd
misc	https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
sectrack	1040587

Last major update

04-09-2020 - 18:24

Published

28-03-2018 - 22:29

Last modified

04-09-2020 - 18:24