CVE-2018-0342 : Vulnerability Insights and Analysis

A weakness has been discovered in the configuration and monitoring service of the Cisco SD-WAN Solution, potentially allowing an attacker to execute code with root privileges or cause a denial of service (DoS) on the affected device.

Understanding CVE-2018-0342

This CVE identifies a vulnerability in the Cisco SD-WAN Solution that could be exploited by an authenticated attacker to execute arbitrary code with root privileges or trigger a DoS condition.

What is CVE-2018-0342?

The vulnerability in the configuration and monitoring service of the Cisco SD-WAN Solution allows an attacker to send malicious data to the vDaemon listening service, leading to a buffer overflow situation and potential execution of arbitrary code with root privileges.

The Impact of CVE-2018-0342

An authenticated attacker located locally could execute code with root privileges or cause a DoS on the affected device.
Inadequate checks on data provided by the configuration and monitoring service lead to this vulnerability.

Technical Details of CVE-2018-0342

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability arises from incomplete bounds checks on data provided by the configuration and monitoring service.
Exploitation involves sending malicious data to the vDaemon listening service on the affected device.

Affected Systems and Versions

Products affected include vBond Orchestrator Software, vEdge Series Routers, vEdge Cloud Router Platform, and various management software.
Affected versions are those released before Release 18.3.0.

Exploitation Mechanism

Attackers exploit the vulnerability by sending malicious data to the vDaemon listening service, causing a buffer overflow and potential execution of arbitrary code with root privileges.

Mitigation and Prevention

Steps to address and prevent the CVE.

Immediate Steps to Take

Update affected Cisco SD-WAN Solution devices to Release 18.3.0 or later.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly monitor and update security patches on all network devices.
Conduct security training for personnel to recognize and respond to potential threats.

Patching and Updates

Apply patches and updates provided by Cisco to address the vulnerability and enhance system security.