Cisco IOS XE Software Authentication, Authorization, and Accounting Login Authentication RCE (cisco-sa-20180606-aaa)

critical Nessus Plugin ID 131703

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Synopsis

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

Description

According to its self-reported version, Cisco IOS XE Software is affected by a remote code execution vulnerability in the authentication, authorization, and accounting (AAA) security services due to incorrect memory operations that the affected software performs when the software parses a username during login authentication. An unauthenticated, remote attacker can exploit this, by attempting to authenticate to an affected device, in order to execute arbitrary code or cause the device to reload and 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) CSCvi25380.

Plugin Details

Severity: Critical

ID: 131703

File Name: cisco-sa-20180606-aaa.nasl

Version: 1.12

Type: local

Family: CISCO

Published: 12/4/2019

Updated: 6/3/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

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

CVSS Score Source: CVE-2018-0315

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 6/6/2018

Vulnerability Publication Date: 6/7/2018

Reference Information

CVE: CVE-2018-0315

BID: 104410

CISCO-SA: cisco-sa-20180606-aaa

CISCO-BUG-ID: CSCvi25380

Detections

Analytics