Cisco IOS Software DHCP Remote Code Execution Vulnerability

critical Nessus Plugin ID 103565
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

According to its self-reported version, the IOS is affected by one or more vulnerabilities. Please see the included Cisco BIDs and the Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID(s) CSCsm45390 and CSCuw77959.

See Also

http://www.nessus.org/u?5aee7830

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCsm45390

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuw77959

Plugin Details

Severity: Critical

ID: 103565

File Name: cisco-sa-20170927-dhcp-ios.nasl

Version: 1.21

Type: combined

Family: CISCO

Published: 10/2/2017

Updated: 4/7/2021

Dependencies: cisco_ios_version.nasl

Risk Information

CVSS Score Source: CVE-2017-12240

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 9/27/2017

Vulnerability Publication Date: 9/27/2017

Reference Information

CVE: CVE-2017-12240

BID: 101034