Cisco IOS/IOS XE Cluster Feature input validation

CVSS Meta Temp Score
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5.7$0-$5k0.00

A vulnerability classified as problematic has been found in Cisco IOS and IOS XE (Router Operating System) (version unknown). Affected is an unknown function of the component Cluster Feature. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

A vulnerability in the implementation of the cluster feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation when handling Cluster Management Protocol (CMP) messages. An attacker could exploit this vulnerability by sending a malicious CMP message to an affected device. A successful exploit could allow the attacker to cause the switch to crash and reload or to hang, resulting in a DoS condition. If the switch hangs it will not reboot automatically, and it will need to be power cycled manually to recover.

The bug was discovered 09/26/2018. The weakness was released 10/05/2018 with Digital Security as cisco-sa-20180926-cmp as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is traded as CVE-2018-0475 since 11/26/2017. The attack needs to approached within the local network. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 117944 (Cisco IOS Software Cluster Management Protocol DoS Vulnerability (cisco-sa-20180926-cmp)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316329 (Cisco IOS and IOS XE Software Cluster Management Protocol Denial of Service Vulnerability(cisco-sa-20180926-cmp)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (117944) and SecurityFocus (BID 105404†).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117944
Nessus Name: Cisco IOS Software Cluster Management Protocol DoS Vulnerability (cisco-sa-20180926-cmp)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/26/2017 🔍
09/26/2018 +303 days 🔍
09/26/2018 +0 days 🔍
09/26/2018 +0 days 🔍
10/05/2018 +8 days 🔍
10/05/2018 +0 days 🔍
10/05/2018 +0 days 🔍
10/06/2018 +1 days 🔍
05/22/2023 +1689 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20180926-cmp
Organization: Digital Security
Status: Confirmed

CVE: CVE-2018-0475 (🔍)
OVAL: 🔍

SecurityFocus: 105404 - Cisco IOS and IOS XE Software CVE-2018-0475 Denial of Service Vulnerability
SecurityTracker: 1041737

scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 10/06/2018 10:52 AM
Updated: 05/22/2023 01:23 PM
Changes: 10/06/2018 10:52 AM (71), 03/30/2020 11:45 AM (5), 05/22/2023 01:23 PM (4)
Complete: 🔍
Cache ID: 18:C4D:40

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