CVE-2020-12142 : Vulnerability Insights and Analysis

Silver Peak Systems, Inc. identified a vulnerability where an admin user could access IPSec key material, potentially compromising communication security.

Understanding CVE-2020-12142

This CVE involves the retrieval of IPSec key material from Silver Peak's EdgeConnect by an admin user, leading to potential decryption of communication.

What is CVE-2020-12142?

Admin users can access IPSec seed and nonce parameters, allowing decryption of in-flight communication.
Requires administrative and shell access to the EdgeConnect appliance.

The Impact of CVE-2020-12142

CVSS Score: 4.8 (Medium)
Confidentiality Impact: High
Integrity Impact: Low
Privileges Required: High
Attack Complexity: High
Attack Vector: Network
User Interaction: Required
Scope: Unchanged
Vector String: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N

Technical Details of CVE-2020-12142

Vulnerability Description

Admin users can retrieve IPSec key material from EdgeConnect interfaces, potentially decrypting communication.

Affected Systems and Versions

Unity EdgeConnect, NX, VX, Unity Orchestrator, EdgeConnect in AWS, Azure, GCP.
All versions affected prior to Silver Peak Unity ECOS 8.3.2+, 8.1.9.12+, and Silver Peak Unity Orchestrator 8.9.2+.

Exploitation Mechanism

Admin access and shell access to EdgeConnect required to access IPSec seed and nonce parameters.

Mitigation and Prevention

Immediate Steps to Take

Update to Silver Peak Unity ECOS 8.3.2+, 8.1.9.12+, or Silver Peak Unity Orchestrator 8.9.2+.
Monitor and restrict admin access to EdgeConnect.

Long-Term Security Practices

Regularly review and update access controls.
Implement network segmentation to limit exposure.

Patching and Updates

Apply the provided security advisory to prevent unauthorized access to IPSec key material.