Cisco Small Business 200, 300, and 500 Series Switches Web-Based Management Interface DoS (cisco-sa-smb-switches-web-dos-xMyFFkt8)

medium Nessus Plugin ID 155300

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Small Business 200, 300, and 500 Series Switches are affected by a vulnerability in the web-based management interface due to improper validation of HTTP requests. An unauthenticated, remote attacker can exploit this to cause a denial of service (DoS) condition.

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 CSCvz62174

Plugin Details

Severity: Medium

ID: 155300

File Name: cisco-sa-smb-switches-web-dos-xMyFFkt8.nasl

Version: 1.2

Type: remote

Family: CISCO

Published: 11/12/2021

Updated: 5/19/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-40127

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: x-cpe:/o:cisco:small_business_series_switch

Required KB Items: installed_sw/Cisco Small Business Series Switch

Exploit Ease: No known exploits are available

Patch Publication Date: 11/3/2021

Vulnerability Publication Date: 11/3/2021

Reference Information

CVE: CVE-2021-40127

CWE: 20

CISCO-SA: cisco-sa-smb-switches-web-dos-xMyFFkt8

IAVA: 2021-A-0548-S

CISCO-BUG-ID: CSCvz62174

Detections

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