Cisco IOS XE & Cisco IOS XE SDWAN Ethernet Frame DoS (cisco-sa-le-drTOB625)

Medium Nessus Plugin ID 141437

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VPR Score: 3.6

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS XE or Cisco IOS XE SDWAN is affected by a denial of service (DoS) vulnerability in its networking component due to a failure to handle malformed ethernet frames. An unauthenticated, adjacent attacker can exploit this issue, by sending specially crafted ethernet frames to an affected device, to force a reload of the device.

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvu30597

See Also

http://www.nessus.org/u?218a376f

http://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74268

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu30597

Plugin Details

Severity: Medium

ID: 141437

File Name: cisco-sa-le-drTOB625-iosxe.nasl

Version: 1.4

Type: local

Family: CISCO

Published: 2020/10/14

Updated: 2020/10/15

Dependencies: 67217

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS Score Source: CVE-2020-3465

CVSS v2.0

Base Score: 6.1

Temporal Score: 4.5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 6.5

Temporal Score: 5.7

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/09/24

Vulnerability Publication Date: 2020/09/24

Reference Information

CVE: CVE-2020-3465

CISCO-BUG-ID: CSCvu30597

CISCO-SA: cisco-sa-le-drTOB625

IAVA: 2020-A-0439

CWE: 20