search menu icon-carat-right cmu-wordmark

CERT Coordination Center

Secure Elements Class 5 AVR server fails to properly validate pathnames when downloading updates

Vulnerability Note VU#764025

Original Release Date: 2006-05-30 | Last Revised: 2006-06-07

Overview

The Secure Elements Class 5 AVR server fails to properly validate pathnames when downloading updates. This may allow an attacker to overwrite arbitrary files on the server system.

Description

Class 5 AVR

Secure Elements Class 5 AVR (Automated Vulnerability Remediation) is a security product that monitors and enforces security policies on network assets. Class 5 AVR is now known as C5 EVM (Enterprise Vulnerability Management). The Class 5 AVR software includes both server and client components.

Class 5 AVR client

The Class 5 AVR client listens on 60000/udp and an additional tcp port. This client receives commands sent by the Class 5 AVR server.

Class 5 AVR server

The Class 5 AVR server is available as an appliance or as software that runs on commodity hardware. The Class 5 AVR server contains information about network assets, vulnerabilities, and remediation history.

The problem

The Class 5 AVR server fails to properly validate pathnames when downloading updates.

Impact

When combined with VU#764025, an attacker may be able to overwrite arbitrary files on the AVR server as root.

Solution

Upgrade or patch
This issue has been resolved in C5 EVM 2.8.1.

Vendor Information

764025
 

Secure Elements Affected

Notified:  February 06, 2006 Updated: May 30, 2006

Status

Affected

Vendor Statement

Remediation in C5 EVM version 2.8.1 and above

The C5 EVM now checks for invalid pathnames including, but not limited to indirection.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


CVSS Metrics

Group Score Vector
Base
Temporal
Environmental

References

Acknowledgements

Thanks to the NOAA N-CIRT Lab for reporting this vulnerability.

This document was written by Will Dormann.

Other Information

CVE IDs: None
Severity Metric: 0.24
Date Public: 2006-05-30
Date First Published: 2006-05-30
Date Last Updated: 2006-06-07 03:01 UTC
Document Revision: 6

Sponsored by CISA.