Detections
Analytics
Cisco Firepower Threat Defense WebVPN DoS (cisco-sa-20190501-sd-cpu-dos)
high Nessus Plugin ID 136971
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Synopsis
The packet inspection software installed on the remote host is affected by a denial of service vulnerability.Description
According to its self-reported version, the Cisco Firepower Threat Defense (FTD) software installed on the remote host is affected by a vulnerability in the WebVPN login process that allows an unauthenticated, remote attacker to cause increased CPU utilization on an affected device. The vulnerability is due to excessive processing load for existing WebVPN login operations. An attacker can exploit this vulnerability by sending multiple WebVPN login requests to the device. A successful exploit could allow the attacker to increase CPU load on the device, resulting in a denial of service (DoS) condition.Please see the included Cisco BIDs and Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvj33780See Also
Plugin Details
Severity: High
ID: 136971
File Name: cisco-sa-20190501-sd-cpu-dos-ftd.nasl
Version: 1.6
Type: local
Family: CISCO
Published: 5/29/2020
Updated: 6/12/2020
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2018-15388
CVSS v3
Risk Factor: High
Base Score: 8.6
Temporal Score: 7.5
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:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:cisco:firepower, cpe:/a:cisco:firepower_threat_defense
Required KB Items: installed_sw/Cisco Firepower Threat Defense, Host/Cisco/Firepower
Exploit Ease: No known exploits are available
Patch Publication Date: 5/1/2019
Vulnerability Publication Date: 5/1/2019
Reference Information
CVE: CVE-2018-15388
BID: 108137