CVE-2019-12662 : Vulnerability Insights and Analysis

A vulnerability in Cisco NX-OS Software and Cisco IOS XE Software allows an attacker with administrator privileges to bypass signature verification and execute code on affected devices.

Understanding CVE-2019-12662

This CVE involves a weakness in Cisco NX-OS Software and Cisco IOS XE Software that enables an attacker with specific credentials to install a virtual service image and bypass signature verification.

What is CVE-2019-12662?

The vulnerability allows an authorized attacker with administrator or privilege level 15 credentials to install a malicious OVA image on the affected device without a valid signature.

The Impact of CVE-2019-12662

CVSS Base Score: 6.7 (Medium Severity)
Attack Vector: Local
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Successful exploitation can lead to code execution on manipulated software OVA images.

Technical Details of CVE-2019-12662

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from incorrect signature verification during the installation of an Open Virtual Appliance (OVA) image.

Affected Systems and Versions

Affected Product: Cisco NX-OS Software 6.0(2)A1(1)
Vendor: Cisco
Version: Unspecified

Exploitation Mechanism

An attacker with physical access and specific credentials can exploit the vulnerability to install a malicious OVA image.

Mitigation and Prevention

Protect your systems from CVE-2019-12662 with these mitigation strategies.

Immediate Steps to Take

Apply vendor-released patches promptly.
Restrict physical access to devices.
Monitor for unauthorized OVA image installations.

Long-Term Security Practices

Implement least privilege access controls.
Regularly update and patch software.

Patching and Updates

Stay informed about security advisories from Cisco.