Detections
Analytics
Cisco IOS and IOS XE Software Denial of Service Vulnerability (cisco-sa-20180328-bfd)
high Nessus Plugin ID 135922
Language:
Synopsis
The remote device is missing a vendor-supplied security patchDescription
A denial of service (DoS) vulnerability exists in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches due to insufficient error handling when the BFD header in a BFD packet is incomplete. An unauthenticated, remote attacker can exploit this issue by sending crafted BFD message to or across an affected switch. If the attacker is succesful then this could allow the attacker to trigger a reload of the system.Please see the included Cisco BIDs and Cisco Security Advisory for more information
Solution
Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCvc40729See Also
Plugin Details
Severity: High
ID: 135922
File Name: cisco-sa-20180328.nasl
Version: 1.7
Type: combined
Family: CISCO
Published: 4/23/2020
Updated: 4/25/2023
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2018-0155
CVSS v3
Risk Factor: High
Base Score: 8.6
Temporal Score: 8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:ios
Required KB Items: Host/Cisco/show_ver
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/28/2018
Vulnerability Publication Date: 3/28/2018
CISA Known Exploited Vulnerability Due Dates: 3/17/2022
Reference Information
CVE: CVE-2018-0155
BID: 103565