CVE-2018-0213 : Security Advisory and Response

A security flaw in the credential reset feature of Cisco Identity Services Engine (ISE) allows a remote attacker with authentication to potentially gain higher-level privileges. The vulnerability arises from inadequate input validation, requiring the attacker to authenticate to the device and submit a specially crafted HTTP request to exploit it.

Understanding CVE-2018-0213

This CVE involves a vulnerability in the credential reset functionality for Cisco Identity Services Engine (ISE) that could lead to elevated privileges for an authenticated remote attacker.

What is CVE-2018-0213?

The vulnerability in Cisco ISE allows an attacker with authentication to gain elevated privileges by exploiting a flaw in the credential reset feature. The attacker needs to authenticate to the device and send a manipulated HTTP request to achieve higher-level access.

The Impact of CVE-2018-0213

An attacker could potentially obtain higher-level privileges on the affected system.
Access to functionality that should be restricted can be gained through successful exploitation.
The attacker must possess legitimate user credentials for the device to exploit this vulnerability.

Technical Details of CVE-2018-0213

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Cisco ISE arises from a lack of proper input validation in the credential reset functionality, enabling an attacker to gain elevated privileges.

Affected Systems and Versions

Product: Cisco Identity Services Engine
Version: Cisco Identity Services Engine

Exploitation Mechanism

Attacker authenticates to the device
Submits a specially designed HTTP request
Successful exploitation grants elevated privileges and access to restricted functionality

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2018-0213.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Monitor network traffic for any signs of malicious activity.
Restrict access to the affected systems to authorized personnel only.

Long-Term Security Practices

Regularly review and update access control policies.
Conduct security training for users to prevent credential compromise.
Implement multi-factor authentication to enhance security.

Patching and Updates

Check for and apply patches or updates released by Cisco to address the vulnerability.