Vulnerability Note VU#258834

WebEOC privileges are based on client-side authorization

Original Release date: 13 Jul 2005 | Last revised: 19 Jul 2005

Overview

WebEOC ties privileges and roles to client-side resources. If an attacker can access a resource directly, that attacker will be granted all the privileges associated with that resource.

Description

WebEOC is a web-based crisis information management application that provides functions to gather, coordinate, and disseminate information between emergency personnel and emergency operations centers (EOC). WebEOC privileges and authorizations are granted to a user based on the resources they are accessing. It is assumed that if a user can navigate to a specific resource, then that user is authorized to use that resource and obtain all privileges associated with it. In numerous places in a WebEOC system, resources are requested via URIs. An attacker may be able exploit this design by crafting a URI that will directly access a resource, thus elevating that attacker's privileges.

Impact

Attackers may be able to gain elevated privileges giving them access to sensitive information and resources.

Solution

Upgrade

Version 6.0.2 corrects this vulnerability. According to ESi:

    In version 6.0.2 this vulnerability has been addressed by adding validation checks to all function calls submitted to the web server. Any resource request sent to the WebEOC application is validated at the server to ensure that the user is logged in and has the proper permissions.
To obtain WebEOC upgrades, contact ESi Technical Support.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
ESiAffected-21 Jun 2005
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

This document is based on technical analysis by IOActive and additional information from ESi. Thanks also to the City of Seattle for bringing this to our attention.

This document was written by Jeff Gennari.

Other Information

  • CVE IDs: Unknown
  • Date Public: 13 Jul 2005
  • Date First Published: 13 Jul 2005
  • Date Last Updated: 19 Jul 2005
  • Severity Metric: 6.83
  • Document Revision: 69

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