Cisco IOS XE Software Command Injection Vulnerability

high Nessus Plugin ID 127913

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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 vulnerability that could allow an authenticated, remote attacker to execute commands on the underlying Linux shell of an affected device with root privileges.The vulnerability occurs because the affected software improperly sanitizes user-supplied input.
An attacker who has valid administrator access to an affected device could exploit this vulnerability by supplying a username with a malicious payload in the web UI and subsequently making a request to a specific endpoint in the web UI. A successful exploit could allow the attacker to run arbitrary commands as the root user, allowing complete compromise of the system.

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvi36805

Plugin Details

Severity: High

ID: 127913

File Name: cisco-sa-20190327-iosxe-cmdinject.nasl

Version: 1.8

Type: local

Family: CISCO

Published: 8/20/2019

Updated: 4/5/2022

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2019-1756

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/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: 3/27/2019

Vulnerability Publication Date: 3/27/2019

Reference Information

CVE: CVE-2019-1756

BID: 107598

CWE: 20

CISCO-SA: cisco-sa-20190327-iosxe-cmdinject

CISCO-BUG-ID: CSCvi36805

Detections

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