DTE Energy Insight app vulnerable to information exposure

Overview

The DTE Energy Insight app API allows an authenticated user to obtain and query certain limited customer information from other customers.

Description

CWE-200**: Information Exposure****-**CVE-2016-1562

The DTE Energy Insight app lets DTE Energy customers track their energy usage. This information is exposed via an HTTP REST API.

The API contains a parameter 'filter' that may be manipulated by an authenticated user. This parameter determines the customer data to be returned by the server. By manipulating the 'filter' parameter, an authorized user may be able to obtain and query limited customer information for other users.

The researcher has released a blog post with more details.

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Impact

A remote, authenticated user may be able to obtain limited information about other customers.

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Solution

DTE Energy has updated its Insight server backend to mitigate this issue. The researcher has confirmed that the APIs no longer allow access to other data.

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Vendor Information

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DTE Energy __ Affected

Notified: February 03, 2016 Updated: March 01, 2016

Statement Date: February 26, 2016

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

DTE Energy has released version 1.7.8 to resolve the reported vulnerability. Ensure your device is updated to the latest version of this app.

CVSS Metrics

Group	Score	Vector
Base	4	AV:N/AC:L/Au:S/C:P/I:N/A:N
Temporal	3.1	E:POC/RL:OF/RC:C
Environmental	2.3	CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

• <http://jeffq.com/blog/dteenergy-insight/&gt;
• https://play.google.com/store/apps/details?id=com.dteenergy.insight&hl=en

Acknowledgements

Thanks to Jeffrey Quesnelle for reporting this vulnerability.

This document was written by Garret Wassermann.

Other Information

CVE IDs:	CVE-2016-1562
Date Public:	2016-03-10 Date First Published: