Cisco IOS AAA Login DoS (cisco-sa-20160928-aaados)

high Nessus Plugin ID 131164

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Synopsis

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

Description

According to its self-reported version, Cisco IOS is affected by a denial of service (DoS) vulnerability in the Authentication, Authorization, and Accounting (AAA) service for remote Secure Shell Host (SSH) connection. An unauthenticated, remote attacker can exploit this, by attempting to authenticate to the target device, causing the device to stop responding.

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(s) CSCuy87667.

Plugin Details

Severity: High

ID: 131164

File Name: cisco-sa-20160928-aaados-ios.nasl

Version: 1.10

Type: combined

Family: CISCO

Published: 11/21/2019

Updated: 5/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2016-6393

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2016

Vulnerability Publication Date: 10/5/2016

Reference Information

CVE: CVE-2016-6393

BID: 93196

CISCO-SA: cisco-sa-20160928-aaados

CISCO-BUG-ID: CSCuy87667

Detections

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