Title: Teradek VidiU Pro 3.0.3 (snapshot.cgi) Stream Disclosure
Advisory ID: ZSL-2018-5462
Type: Local/Remote
Impact: Exposure of System Information, Exposure of Sensitive Information
Risk: (3/5)
Release Date: 21.05.2018

Summary

The Teradek VidiU gives you the freedom to broadcast live high definition video directly to the Web without a PC. Whether you're streaming out of a video switcher or wirelessly from your camera, VidiU allows you to go live when you want, where you want. VidiU offers API level integration with the Ustream, YouTube Live and Livestream platforms, which makes streaming to your channel as easy as logging into your account.

Description

VidiU suffers from an unauthenticated and unauthorized live stream disclosure when snapshot.cgi script is called.

Vendor

Teradek, LLC - https://www.teradek.com

Affected Version

VidiU, VidiU Mini, VidiU Pro
3.0.3 (build 32136)
3.0.2 (build 31225)
2.4.10

Tested On

lighttpd/1.4.48
lighttpd/1.4.31

Vendor Status

[02.03.2018] Vulnerability discovered.
[08.05.2018] Vendor contacted.
[08.05.2018] Vendor replied asking more details.
[08.05.2018] Sent details to the vendor.
[10.05.2018] Asked vendor for status update.
[13.05.2018] No response from the vendor.
[14.05.2018] Asked vendor for status update.
[20.05.2018] No response from the vendor.
[21.05.2018] Public security advisory released.

PoC

teradek_vidiu_stream.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] https://exchange.xforce.ibmcloud.com/vulnerabilities/143720
[2] https://cxsecurity.com/issue/WLB-2018050171
[3] https://packetstormsecurity.com/files/147790

Changelog

[21.05.2018] - Initial release
[29.05.2018] - Added reference [1], [2] and [3]

Contact

Zero Science Lab

Web: http://www.zeroscience.mk
e-mail: lab@zeroscience.mk