Dahua DVR 2.608.0000.0 and 2.608.GV00.0 allows remote attackers to bypass authentication and obtain sensitive information including user credentials, change user passwords, clear log files, and perform other actions via a request to TCP port 37777.
https://github.com/fsn4k3/dahua-dvr-metasploit
https://github.com/mrhenrike/EmbedXPL-Forge
https://github.com/milo2012/CVE-2013-6117
https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-5946
http://www.exploit-db.com/exploits/29673
http://seclists.org/bugtraq/2013/Nov/62
http://packetstormsecurity.com/files/124022/Dahua-DVR-Authentication-Bypass.html
http://blog.depthsecurity.com/2013/11/dahua-dvr-authentication-bypass-cve.html