VDB-124860 · CVE-2018-0467 · Qualys 316327

Cisco IOS/IOS XE IPv6 IPv6 Packet input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6	$0-$5k	0.00

A vulnerability, which was classified as problematic, was found in Cisco IOS and IOS XE (Router Operating System) (version unknown). Affected is an unknown functionality of the component IPv6 Handler. The manipulation as part of a IPv6 Packet leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-20. This is going to have an impact on availability.

The bug was discovered 09/26/2018. The weakness was published 10/05/2018 as cisco-sa-20180926-ipv6hbh as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2018-0467 since 11/26/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/30/2020).

The vulnerability scanner Nessus provides a plugin with the ID 117949 (Cisco IOS Software IPv6 Hop-by-Hop DoS Vulnerability (cisco-sa-20180926-ipv6hbh)), 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 local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316327 (Cisco IOS and IOS XE Software IPv6 Hop-by-Hop Options Denial of Service Vulnerability(cisco-sa-20180926-ipv6hbh)).

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 vulnerability database at Tenable (117949). Similar entry is available at 124859.

Productinfoedit

Type

Router Operating System

Vendor

Cisco

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.6
NVD Vector: 🔍

CVSSv2infoedit

AV	AC	Au	C	I	A
🔍	🔍	🔍	🔍	🔍	🔍
🔍	🔍	🔍	🔍	🔍	🔍
🔍	🔍	🔍	🔍	🔍	🔍

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 117949
Nessus Name: Cisco IOS Software IPv6 Hop-by-Hop DoS Vulnerability (cisco-sa-20180926-ipv6hbh)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: tools.cisco.com

Timelineinfoedit

11/26/2017 🔍
09/26/2018 +303 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 🔍
03/30/2020 +541 days 🔍

Sourcesinfoedit

Vendor: cisco.com

Advisory: cisco-sa-20180926-ipv6hbh
Status: Confirmed

CVE: CVE-2018-0467 (🔍)
OVAL: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfoedit

Created: 10/06/2018 07:50 AM
Updated: 03/30/2020 11:08 AM
Changes: (2) vulnerability_discoverydate countermeasure_date
Complete: 🔍