Cisco IOS Software Integrated Services Routers Generation 2 denial of service (cisco-sa-20170927-rbip-dos)

High Nessus Plugin ID 103671

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version and configuration, the Cisco IOS software running on the remote device is affected by a denial of service vulnerability in it's handling of ethernet frames. An unauthenticated, remote attacker can exploit this, via a specially crafted ethernet frame, to cause the switch to stop processing traffic, requiring a device restart to regain functionality.

This vulnerability only affects Cisco ISR Generation 2 devices.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvc03809.

See Also

http://www.nessus.org/u?6d64402f

Plugin Details

Severity: High

ID: 103671

File Name: cisco-sa-20170927-rbip-dos.nasl

Version: 1.7

Type: combined

Family: CISCO

Published: 2017/10/05

Modified: 2018/07/16

Dependencies: 47864

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.8

Temporal Score: 5.8

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

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

CVSSv3

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/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

Required KB Items: Host/Cisco/IOS/Version, Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/09/27

Vulnerability Publication Date: 2017/09/27

Reference Information

CVE: CVE-2017-12232

BID: 101044

CISCO-BUG-ID: CSCvc03809

CISCO-SA: cisco-sa-20170927-rbip-dos