CVE-2018-0467 : Vulnerability Insights and Analysis

A vulnerability in Cisco IOS and IOS XE Software allows a remote attacker to trigger a denial of service (DoS) by exploiting IPv6 hop-by-hop options.

Understanding CVE-2018-0467

What is CVE-2018-0467?

The vulnerability in Cisco IOS and IOS XE Software enables an unauthenticated attacker to force a device restart by sending a malicious IPv6 packet.

The Impact of CVE-2018-0467

The vulnerability could lead to a DoS situation, rendering the affected device unresponsive.

Technical Details of CVE-2018-0467

Vulnerability Description

The flaw lies in the mishandling of specific IPv6 hop-by-hop options in Cisco IOS and IOS XE Software.

Affected Systems and Versions

Product: Cisco IOS Software
Vendor: Cisco
Version: n/a

Exploitation Mechanism

Attackers can exploit the vulnerability by sending a malicious IPv6 packet to the affected device or routing it through.

Mitigation and Prevention

Immediate Steps to Take

Apply the necessary security patches provided by Cisco.
Implement network traffic monitoring to detect and block malicious IPv6 packets.

Long-Term Security Practices

Regularly update and patch all network devices to prevent vulnerabilities.
Conduct security audits and assessments to identify and address potential weaknesses.

Patching and Updates

Cisco has released patches to address the vulnerability in affected software versions.