pagvac has reported some vulnerabilities in Linksys WVC54GCA, which can be exploited by malicious people to disclose sensitive information or conduct cross-site scripting attacks, and by malicious users to bypass certain security restrictions.
1) The device sends e.g. login credentials in plain text after receiving a specially crafted UDP packet.
2) Input passed to the "next_file" parameter in img/main.cgi is not properly verified before being used to read files. This can be exploited to read the .htpasswd file from the current directory and disclose the administrator's password.
Successful exploitation of this vulnerability requires valid user credentials.
3) Input passed to the "next_file" parameter in img/main.cgi, main.cgi, and adm/file.cgi is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The vulnerabilities are reported in firmware versions 1.00R22 and 1.00R24. Other versions may also be affected.
Solution: Use the product in trusted networks only.
Original Advisory: http://www.gnucitizen.org/blog/hacking-linksys-ip-cameras-pt-1/
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