Cisco IOS Software NAT denial of service (cisco-sa-20170927-nat)

high Nessus Plugin ID 103669

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Synopsis

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

Description

According to its self-reported version and configuration, the Cisco IOS software running on the remote device is affected by a denial of service vulnerability in the Network Address Translation (NAT) feature. An unauthenticated, remote attacker can exploit this, via specially crafted NAT requests, to cause the switch to stop processing traffic, requiring a device restart to regain functionality.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvc57217

Plugin Details

Severity: High

ID: 103669

File Name: cisco-sa-20170927-nat.nasl

Version: 1.12

Type: combined

Family: CISCO

Published: 10/5/2017

Updated: 4/25/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

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

CVSS Score Source: CVE-2017-12231

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

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:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/27/2017

Vulnerability Publication Date: 9/27/2017

CISA Known Exploited Vulnerability Due Dates: 3/24/2022

Reference Information

CVE: CVE-2017-12231

BID: 101039

CISCO-SA: cisco-sa-20170927-nat

CISCO-BUG-ID: CSCvc57217

Detections

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