CVE-2018-5413 : Security Advisory and Response

An unauthorized action in Imperva SecureSphere versions v13.0, v12.0, and v11.5 allows low privileged users to escalate privileges by adding SSH login keys to the admin user account.

Understanding CVE-2018-5413

This CVE involves a vulnerability in Imperva SecureSphere that enables privilege escalation for low privileged users.

What is CVE-2018-5413?

CVE-2018-5413 is a security vulnerability in Imperva SecureSphere versions v13.0, v12.0, and v11.5 that permits unauthorized users to elevate their privileges by adding SSH login keys to the admin user account.

The Impact of CVE-2018-5413

The vulnerability allows users with low privileges to gain unauthorized access to admin-level permissions, potentially compromising the security and integrity of the system.

Technical Details of CVE-2018-5413

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability in Imperva SecureSphere versions v13.0, v12.0, and v11.5 enables low privileged users to add SSH login keys to the admin user account, leading to an elevation of privileges.

Affected Systems and Versions

Product: SecureSphere
Vendor: Imperva
Versions Affected: v13.0, v12.0, and v11.5
Version Type: Custom

Exploitation Mechanism

The vulnerability allows unauthorized users to manipulate SSH login keys, granting them elevated privileges within the system.

Mitigation and Prevention

Protect your systems from CVE-2018-5413 with the following steps:

Immediate Steps to Take

Update Imperva SecureSphere to a patched version that addresses the vulnerability.
Monitor admin account activities for unauthorized SSH key additions.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access rights.
Regularly audit and review user permissions to prevent unauthorized privilege escalation.

Patching and Updates

Apply security patches and updates provided by Imperva to fix the vulnerability and enhance system security.