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CVE-2018-0155 Detail

Description

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.

Severity

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 8.6 HIGH

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

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.securityfocus.com/bid/103565	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040587	Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05	Third Party Advisory US Government Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd	Vendor Advisory

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name	Date Added	Due Date	Required Action
Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability	03/03/2022	03/17/2022	Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-755	Improper Handling of Exceptional Conditions	NIST
CWE-388	7PK - Errors	Cisco Systems, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Initial Analysis by NIST 4/24/2018 1:42:02 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 972 characters. View Entire Change Record AND OR cpe:2.3:o:cisco:ios:3.6\(2\)e::::::: cpe:2.3:o:cisco:ios_xe:3.6\(2\)e::::::: OR 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:c
Added	CPE Configuration		AND OR cpe:2.3:o:cisco:ios:3.6\(2\)e::::::: cpe:2.3:o:cisco:ios_xe:3.6\(2\)e::::::: OR cpe:2.3:h:rockwellautomation:allen-bradley_stratix_8300_industrial_managed_ethernet_switch:-:::::::*
Added	CVSS V2		(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Added	CVSS V3		AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Added	CWE		CWE-388
Changed	Reference Type	http://www.securityfocus.com/bid/103565 No Types Assigned	http://www.securityfocus.com/bid/103565 Third Party Advisory, VDB Entry
Changed	Reference Type	http://www.securitytracker.com/id/1040587 No Types Assigned	http://www.securitytracker.com/id/1040587 Third Party Advisory, VDB Entry
Changed	Reference Type	https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 No Types Assigned	https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 Third Party Advisory, US Government Resource
Changed	Reference Type	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd No Types Assigned	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-bfd Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2018-0155
NVD Published Date:
03/28/2018
NVD Last Modified:
09/04/2020
Source:
Cisco Systems, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2018-0155 Detail

Description

Severity

References to Advisories, Solutions, and Tools

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

Modified Analysis by NIST 9/04/2020 2:24:24 PM

CVE Modified by Cisco Systems, Inc. 10/09/2019 7:31:20 PM

Initial Analysis by NIST 4/24/2018 1:42:02 PM

CVE Modified by Cisco Systems, Inc. 4/19/2018 9:29:20 PM

CVE Modified by Cisco Systems, Inc. 4/02/2018 9:29:00 PM

CVE Modified by Cisco Systems, Inc. 3/29/2018 9:29:01 PM

Quick Info