Cisco FTD Software Cryptographic TLS and SSL Driver Denial of Service Vulnerability (cisco-sa-20190710-asa-ftd-dos)

high Nessus Plugin ID 127118

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Adaptive Security Appliance Software with FirePOWER Services is affected by a vulnerability in the cryptographic driver due to incomplete input validation of a Secure Sockets Layer (SSL) or Transport Layer Security (TLS) ingress packet header. An unauthenticated, remote attacker can exploit this, by sending a crafted TLS/SSL packet to an interface on the targeted device to cause the device to reboot unexpectedly.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

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 CSCvp36425

See Also

http://www.nessus.org/u?5001de6f

Plugin Details

Severity: High

ID: 127118

File Name: cisco-sa-20190710-asa-ftd-dos.nasl

Version: 1.13

Type: local

Family: CISCO

Published: 8/5/2019

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-2019-1873

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, 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: 7/10/2019

Vulnerability Publication Date: 7/10/2019

Reference Information

CVE: CVE-2019-1873

BID: 109123

CWE: 400

CISCO-SA: cisco-sa-20190710-asa-ftd-dos

IAVA: 2019-A-0271-S

CISCO-BUG-ID: CSCvp36425