Cisco IOS XE Software Stored Banner XSS (cisco-sa-20190925-sbxss)

medium Nessus Plugin ID 129826

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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 cross-site scripting vulnerability which allows an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web interface of the affected software using the banner parameter. The vulnerability is due to insufficient input validation of the banner parameters that are passed to the web server of the affected software. An attacker can exploit this vulnerability by crafting a banner parameter and saving it. The attacker could then convince a user of the web interface to access a malicious link or could intercept a user request for the affected web interface and inject malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information.

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 CSCvk25852

Plugin Details

Severity: Medium

ID: 129826

File Name: cisco-sa-20190925-sbxss-iosxe.nasl

Version: 1.9

Type: local

Family: CISCO

Published: 10/11/2019

Updated: 1/8/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

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

CVSS Score Source: CVE-2019-12668

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

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

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: 9/25/2019

Vulnerability Publication Date: 9/25/2019

Reference Information

CVE: CVE-2019-12668

CWE: 79

CISCO-SA: cisco-sa-20190925-sbxss

IAVA: 2019-A-0352-S

CISCO-BUG-ID: CSCvk25852

Detections

Analytics