Cisco Firepower Threat Defense Software Web Services File Upload DoS (cisco-sa-asaftd-fileup-dos-zvC7wtys)

high Nessus Plugin ID 152674

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version, Cisco Firepower Threat Defense Software is affected by a vulnerability in the web services interface that allows an unauthenticated, remote attacker to upload arbitrary-sized files to specific folders on an affected device, which could lead to an unexpected device reload. The vulnerability exists because the affected software does not efficiently handle the writing of large files to specific folders on the local file system.
An attacker could exploit this vulnerability by uploading files to those specific folders. A successful exploit could allow the attacker to write a file that triggers a watchdog timeout, which would cause the device to unexpectedly reload, causing a denial of service (DoS) condition.

Note that Nessus has not tested for this issue 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 CSCvt60190

See Also

http://www.nessus.org/u?565ae2af

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

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvt60190

Plugin Details

Severity: High

ID: 152674

File Name: cisco-sa-asaftd-fileup-dos-zvC7wtys_ftd.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 8/19/2021

Updated: 3/31/2023

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-2020-3436

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:adaptive_security_appliance_software

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-2020-3436

CISCO-SA: cisco-sa-asaftd-fileup-dos-zvC7wtys

IAVA: 2020-A-0488-S

CISCO-BUG-ID: CSCvt60190