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HomeAutomation v3.3.2 Authentication Bypass Exploit

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Title: HomeAutomation v3.3.2 Authentication Bypass Exploit Advisory ID: [ZSL-2019-5557](<ZSL-2019-5557.php>) Type: Local/Remote Impact: Security Bypass Risk: (4/5) Release Date: 29.12.2019 ##### Summary HomeAutomation is an open-source web interface and scheduling solution. It was initially made for use with the Telldus TellStick, but is now based on a plugin system and except for Tellstick it also comes with support for Crestron, OWFS and Z-Wave (using OpenZWave). It controls your devices (switches, dimmers, etc.) based on an advanced scheduling system, taking into account things like measurements from various sensors. With the houseplan view you can get a simple overview of the status of your devices at their location in your house. ##### Description The application suffers from an authentication bypass vulnerability when spoofing client IP address using the X-Forwarded-For header with the local (loopback) IP address value allowing remote control of the smart home solution. ##### Vendor Tom Rosenback and Daniel Malmgren - <http://karpero.mine.nu/ha/> ##### Affected Version 3.3.2 ##### Tested On Apache/2.4.41 (centos) OpenSSL/1.0.2k-fips Apache/2.4.29 (Ubuntu) PHP/7.4.0RC4 PHP/7.3.11 PHP 7.2.24-0ubuntu0.18.04.1 ##### Vendor Status [06.11.2019] Vulnerability discovered. [07.11.2019] Vendor contacted. [29.11.2019] No response from the vendor. [30.11.2019] Vendor contacted. [28.12.2019] No response from the vendor. [29.12.2019] Public security advisory released. ##### PoC [homeautomation_authbypass.txt](<../../codes/homeautomation_authbypass.txt>) ##### Credits Vulnerability discovered by Gjoko Krstic - <[gjoko@zeroscience.mk](<mailto:gjoko@zeroscience.mk>)> ##### References [1] <https://www.exploit-db.com/exploits/47807> [2] <https://packetstormsecurity.com/files/155789/HomeAutomation-3.3.2-Authentication-Bypass.html> [3] <https://cxsecurity.com/issue/WLB-2019120139> [4] <https://exchange.xforce.ibmcloud.com/vulnerabilities/173658> [5] <https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-22001> [6] <https://nvd.nist.gov/vuln/detail/CVE-2020-22001> [7] <https://www.incibe-cert.es/en/early-warning/vulnerabilities/cve-2020-22001> ##### Changelog [29.12.2019] - Initial release [24.01.2020] - Added reference [1], [2], [3] and [4] [19.06.2021] - Added reference [5], [6] and [7] ##### Contact Zero Science Lab Web: <http://www.zeroscience.mk> e-mail: [lab@zeroscience.mk](<mailto:lab@zeroscience.mk>)


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