CVE-2018-0175 : What You Need to Know

Cisco IOS, IOS XE, and IOS XR are affected by a Format String vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem, potentially allowing unauthorized attackers to cause denial of service or execute arbitrary code with elevated privileges.

Understanding CVE-2018-0175

This CVE involves a vulnerability in the LLDP subsystem of Cisco IOS, IOS XE, and IOS XR software.

What is CVE-2018-0175?

The vulnerability in the LLDP subsystem of Cisco software could enable adjacent unauthorized attackers to trigger a denial of service (DoS) scenario or execute arbitrary code with elevated privileges on affected devices.

The Impact of CVE-2018-0175

The vulnerability could lead to a DoS situation or unauthorized code execution with elevated privileges on impacted devices.

Technical Details of CVE-2018-0175

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability is related to a Format String issue in the LLDP subsystem of Cisco IOS, IOS XE, and IOS XR software.

Affected Systems and Versions

Product: Cisco IOS, IOS XE, and IOS XR
Version: Cisco IOS, IOS XE, and IOS XR

Exploitation Mechanism

The vulnerability could be exploited by an adjacent unauthorized attacker to cause a DoS situation or execute arbitrary code with elevated privileges.

Mitigation and Prevention

Steps to address and prevent the CVE.

Immediate Steps to Take

Apply relevant security patches from Cisco.
Implement network segmentation to limit exposure.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Conduct security training for staff to recognize and respond to potential threats.
Implement access controls and least privilege principles.

Patching and Updates

Stay informed about security advisories from Cisco.
Apply patches promptly to mitigate the vulnerability.