Cisco IOS XE Software SM-1T3/E3 Service Module DoS (cisco-sa-20180926-sm1t3e3)

high Nessus Plugin ID 133473

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 denial of service (DoS) vulnerability in the SM-1T3/E3 firmware due to improper handling of user input. A remote, unauthenticated attacker can exploit this, by first connecting to the SM-1T3/E3 module console and entering a string sequence, causing the device to reload and resulting in a DoS condition.

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) CSCva23932 and CSCvi95007 or apply the workaround mentioned in the vendor advisory.

See Also

http://www.nessus.org/u?9e768df6

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCva23932

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvi95007

Plugin Details

Severity: High

ID: 133473

File Name: cisco-sa-20180926-sm1t3e3-iosxe.nasl

Version: 1.9

Type: combined

Family: CISCO

Published: 2/5/2020

Updated: 5/3/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2018-0485

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/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, Host/Cisco/IOS-XE/Model

Exploit Ease: No known exploits are available

Patch Publication Date: 9/26/2018

Vulnerability Publication Date: 10/5/2018

Reference Information

CVE: CVE-2018-0485

CISCO-SA: cisco-sa-20180926-sm1t3e3

IAVA: 2018-A-0312-S

CISCO-BUG-ID: CSCva23932, CSCvi95007