Cisco IOx Application Environment DoS Vulnerability (cisco-sa-20190925-iox)

high Nessus Plugin ID 129733

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, IOS is affected by a denial of service vulnerability in the IOx application environment of multiple Cisco platforms. This is due to a Transport Layer Security (TLS) implementation issue. A remote attacker can exploit this by sending specially crafted TLS packets to the IOx web server on an affected device, causing the IOx web server to stop processing HTTPS requests.

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 IDs CSCvo19668, CSCvo42730, CSCvp28143, CSCvp28178, or CSCvq86542

Plugin Details

Severity: High

ID: 129733

File Name: cisco-sa-20190925-iox.nasl

Version: 1.14

Type: combined

Family: CISCO

Published: 10/9/2019

Updated: 9/24/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-12656

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version, Host/Cisco/IOS/Model

Exploit Ease: No known exploits are available

Patch Publication Date: 9/25/2019

Vulnerability Publication Date: 9/25/2019

Reference Information

CVE: CVE-2019-12656

CISCO-SA: cisco-sa-20190925-iox

IAVA: 2019-A-0354-S

CISCO-BUG-ID: CSCvo19668, CSCvo42730, CSCvp28143, CSCvp28178, CSCvq86542

Detections

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