CVE-2020-3593 : Security Advisory and Response

A vulnerability in Cisco SD-WAN Software allows an authenticated, local attacker to elevate privileges to root, posing a high risk to affected systems.

Understanding CVE-2020-3593

This CVE involves a privilege escalation vulnerability in Cisco SD-WAN Software.

What is CVE-2020-3593?

The vulnerability in Cisco SD-WAN Software enables an attacker to gain root privileges by exploiting insufficient input validation.

The Impact of CVE-2020-3593

The vulnerability has a CVSS base score of 7.8 (High severity) with high impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2020-3593

This section covers specific technical aspects of the CVE.

Vulnerability Description

The flaw allows an attacker to send a crafted request to a utility on the system, leading to privilege escalation to root.

Affected Systems and Versions

Product: Cisco SD-WAN Solution
Vendor: Cisco
Affected Version: n/a

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Mitigation and Prevention

Protecting systems from this vulnerability is crucial.

Immediate Steps to Take

Apply vendor-provided patches promptly.
Monitor for any unauthorized access or privilege escalations.

Long-Term Security Practices

Regularly update and patch software to address security vulnerabilities.
Implement the principle of least privilege to restrict access.

Patching and Updates

Stay informed about security advisories from Cisco.
Regularly check for updates and apply them to mitigate known vulnerabilities.