Cisco Firepower Threat Defense Software < 6.6.1 sftunnel MitM (cisco-sa-ftdfmc-sft-mitm-tc8AzFs2)

high Nessus Plugin ID 161191

Synopsis

The remote device is missing a vendor-supplied security patch

Description

A vulnerability in the sftunnel functionality of Cisco Firepower Management Center (FMC) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to obtain the device registration hash.
The vulnerability is due to insufficient sftunnel negotiation protection during initial device registration. An attacker in a man-in-the-middle position could exploit this vulnerability by intercepting a specific flow of the sftunnel communication between an FMC device and an FTD device.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvp56719

See Also

http://www.nessus.org/u?e9c4645c

http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74302

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvp56719

Plugin Details

Severity: High

ID: 161191

File Name: cisco-sa-ftdfmc-sft-mitm-tc8AzFs2-ftd.nasl

Version: 1.6

Type: combined

Family: CISCO

Published: 5/13/2022

Updated: 3/31/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-3549

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:firepower_threat_defense

Required KB Items: installed_sw/Cisco Firepower Threat Defense

Exploit Ease: No known exploits are available

Patch Publication Date: 10/21/2020

Vulnerability Publication Date: 10/21/2020

Reference Information

CVE: CVE-2020-3549

CWE: 326

CISCO-SA: cisco-sa-ftdfmc-sft-mitm-tc8AzFs2

IAVA: 2020-A-0488-S

CISCO-BUG-ID: CSCvp56719