Linksys WVC54GC wireless video camera vulnerable to information disclosure

Overview

The Linksys WVC54GC wireless video camera insecurely sends initial configuration information over the network, which can allow a remote, unauthenticated attacker to intercept video streams, access wireless network authentication credentials, modify the device firmware, or cause a denial-of-service to the video camera.

Description

The Linksys WVC54GC wireless video camera uses 916/udp for remote management commands. When a certain packet is delivered to that port, the device responds with a packet that contains the majority of the device’s configuration. This packet includes details such as username, password, wireless ssid, WEP key, WEP password, WPA key, and DNS server. This packet is sent over the network unencrypted, which can allow an attacker to obtain these details.

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Impact

By delivering a specially crafted packet to 916/udp of an affected device, a remote, unauthenticated attacker may be able to obtain information to intercept video streams, access wireless network authentication credentials, modify the device firmware, or cause a denial-of-service to the video camera.

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Solution

Apply an update

This vulnerability is addressed in WVC54GC firmware version 1.25. Please see the release notes for more details.

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Vendor Information

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Linksys (A division of Cisco Systems) __ Affected

Notified: August 15, 2008 Updated: December 05, 2008

Status

Affected

Vendor Statement

Vulnerability 1: Remote Sensitive Information Disclosure

Description: Data under “setup wizard” communication are not encrypted.
Camera settings will be visible by using packet capture tools.
Solution: 2300 and 210 have encrypted data and have no such issue. To decode the data, an administrator username/password is a MUST.

Vendor Information

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

Addendum

This vulnerability is addressed in WVC54GC firmware version 1.25. Please see the release notes for more details.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23528993 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

http://www.linksys.com/servlet/Satellite?blobcol=urldata&blobheadername1=Content-Type&blobheadername2=Content-Disposition&blobheadervalue1=text%2Fplain&blobheadervalue2=inline%3B+filename%3DWVC54GC-V1.0_non-RoHS-v1.25_fw_ver.txt&blobkey=id&blobtable=MungoBlobs&blobwhere=1193776031728&ssbinary=true&lid=8104724130B17

Acknowledgements

Thanks to Andre Protas of eEye for reporting this vulnerability, who in turn also credits Greg Linares of eEye.

This document was written by Will Dormann.

Other Information

CVE IDs:	CVE-2008-4390
Severity Metric:	1.59 Date Public: