CVE-2019-15996 Explained : Impact and Mitigation

A vulnerability in Cisco DNA Spaces: Connector allows a local attacker to escalate privileges and execute unauthorized commands on the underlying operating system as the root user.

Understanding CVE-2019-15996

Cisco DNA Spaces: Connector Privilege Escalation Vulnerability

What is CVE-2019-15996?

This CVE describes a flaw in Cisco DNA Spaces: Connector that enables a local attacker with authentication to elevate their privileges and execute unauthorized commands on the underlying operating system as the root user.

The Impact of CVE-2019-15996

CVSS Base Score: 6.7 (Medium Severity)
Attack Vector: Local
Attack Complexity: Low
Privileges Required: High
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Scope: Unchanged
User Interaction: None

Technical Details of CVE-2019-15996

Vulnerability Description

The vulnerability arises from inadequate limitations while executing a specific CLI command, allowing attackers to alter critical files and gain elevated privileges.

Affected Systems and Versions

Product: Cisco DNA Spaces
Vendor: Cisco
Affected Version: Unspecified

Exploitation Mechanism

Attackers exploit insufficient limitations to modify essential files, leading to elevated privileges and unauthorized command execution as the root user.

Mitigation and Prevention

Immediate Steps to Take

Apply vendor-provided patches promptly
Monitor network for any unauthorized access or unusual activities
Restrict access to critical systems and commands

Long-Term Security Practices

Regularly update and patch software and systems
Conduct security training for employees to recognize and report suspicious activities

Patching and Updates

Regularly check for security advisories and updates from Cisco to address vulnerabilities like CVE-2019-15996