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Sint Wind PI v01.26.19 Authentication Bypass

Critical
Advisory ID
ZSL-2018-5472
Release Date
05 June 2018
Vendor
Affected Version
01.26.19
CVE
N/A
Tested On
SimpleHTTP/0.6 Python/2.7.3, Raspberry PI
Summary

A Meteo Station software for Raspberry PI. Capability include telephone answering, webcams, digital cameras, web. A Sint Wind is a wind condition (and other meteo data) telephone answering machine. This implementation uses a Raspberry PI with an Huawei 3G dongle. The Sint Wind is compatible with different kind of Meteo Sensors (WH1080, WH3080, Davis, TX32, BMP085...).

Description

Insecure Direct Object Reference flaw allows retrieval of configuration file which contains authentication credentials to device and other nodes associated with it. The web application does not check for an authenticated session to access its resources allowing direct access to swpi.cfg (config file) which contains credentials.

Proof of Concept
Disclosure Timeline
28.05.2018Vulnerability discovered.
29.05.2018Vendor contacted with details sent.
29.05.2018Vendor replies: "You can just push request on the official report".
05.06.2018Public security advisory released.
Credits
Vulnerability discovered by Humberto Cabrera
References
Changelog
05.06.2018Initial release
13.06.2018Added reference [1], [2] and [3]