Vulnerability Details CVE-2018-0155
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.153
EPSS Ranking 94.3%
CVSS Severity
CVSS v3 Score 8.6
CVSS v2 Score 7.8
Proposed Action
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.
Ransomware Campaign
Unknown
References
- http://www.securityfocus.com/bid/103565
- http://www.securitytracker.com/id/1040587
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd
- http://www.securityfocus.com/bid/103565
- http://www.securitytracker.com/id/1040587
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd
Products affected by CVE-2018-0155
-
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_6l-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_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_9-e_(k10):-
-
cpe:2.3:h:cisco:catalyst_4900m_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:o:cisco:ios:3.6(2)e
-
cpe:2.3:o:cisco:ios_xe:3.6(2)e