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Meanwhile, Congress and the state legislature of California have tried to address the problem legislatively. The federal Smartphone Theft Prevention Act, introduced in the House by Rep. Jose Serrano ( D- N. Y.) and in the Senate by Sen. Amy Klobuchar ( D- Minn.) in February, would require that all mobile phones sold in the U. S. include a “kill switch,” which is a way to remotely erase data as well as render the phone inoperable if it’s stolen. The bill is much tougher than the CTIA database, because it requires that phones be made inoperable globally by using technology that renders them useless on domestic and international networks. “ It is not done by telling international carriers not to turn the phone back on,” Serrano said, comparing the bill to the approach used by the CTIA database. “ Under the requirements of the bill, if the kill switch is activated, there is nothing for international carriers to do because they won’t be able to turn the device back on.” The bill leaves it to manufacturers and carriers to figure out how to do that. It also requires that the phones must be capable of being restored and reactivated if the phone is eventually recovered. The California law goes even further. If passed, SB 962 would require a similar measure be taken by 2015. But it also mandates that the kill-switch features be enabled when the phone is sold, which means users won’t have to worry about turning it on. It might be difficult for the federal bill to pass, given the current climate in Congress. But it’s attracting lots of attention because of the numbers of phones stolen, and is at least raising awareness of the issues. Gascon’s office says it is optimistic about the California bill’s chances. The closest thing to a kill switch already in the market is Apple’s Activation Lock feature. Available with i OS 7, it requires the user’s Apple ID and password before Find My i Phone.
i Phone owners who previously made use of the Personal Hotspot feature on wireless networks that do not support it are now out of luck, after changes in i OS 7.1 have disabled the ability to manually edit tethering settings for unauthorized carriers. Unhappy users have taken to Apple's support forums to grouse about the issue in a thread that now boasts nearly 16,000 views and over 200 individual replies. Users from the U. S., the U. K., the Netherlands, Estonia, Italy, and Sweden, among others, have chimed in to say that their tethering ability was immediately deactivated upon upgrading to the latest revision of Apple's mobile operating system. According to the reports, any changes made to the APN settings for Personal Hotspot are not saved once the user backs out of the Settings app. The problem has been spotted in every i OS 7-compatible i Phone generation including the flagship i Phone 5s, and was initially blamed on a software glitch. Subsequent testing and conversations between forum users and Apple support agents, however, appear to have narrowed the issue down to a lack of carrier authorization. Users with carriers that support Personal Hotspot have reported a smooth experience, while those who previously experienced the issue and then swapped their SIM card with one from an authorized carrier have seen the problem disappear. Some users whose carrier does allow tethering but does not have a current partner agreement with Apple may have been inadvertently affected by the changes. Most, however, appear to have been abusing the function enable Personal Hotspot without paying additional fees. Unauthorized tethering has been a source of friction between i Phone users and wireless service providers since day one. After Apple's deal with AT DR, the DSP- W215 contains an unauthenticated stack overflow that can be exploited to take complete control of the device, and anything connected to its AC outlet. The DSP- W215 firmware contains all the usual stuff you would expect from a Linux-based device: DSP- W215 Firmware Analysis After unpacking and examining the contents of the file system, I found that the smart plug doesn’t have a normal web-based interface; you are expected to configure it using D- Link’s Android/i OS app. The apps however, appear to use the Home Network Administration Protocol ( HNAP) to talk to the smart plug. Being a SOAP-based protocol, HNAP is served up by a lighttpd server running on the smart plug, and the following excerpt from the lighttpd configuration file(s) shows that HNAP requests are passed off to the /www/my_cgi.cgi binary for processing. alias.url += ( / HNAP1/ => /www/my_cgi.cgi, / HNAP1 => /www/my_cgi.cgi. While HNAP is an authenticated protocol, some HNAP actions – specifically the Get Device Settings action – do not require authentication: XML Output from the Get Device Settings Action Get Device Settings only provides a list of supported actions and isn’t of much use by itself, but this does mean that my_cgi.cgi has to parse the request prior to checking for authentication. HNAP request data is handled by the do_hnap function in my_cgi.cgi. Since HNAP actions are sent as HTTP POST requests, do_hnap first processes the Content- Length header specified in the POST request: Converting the Content- Length String to an Integer Then, naturally, it reads content_length bytes into a fixed-size stack buffer: fgetc Read Loop The following C code is.
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