One of them involves creating a hidden backdoor administrator account that's not listed on the Web interface.Ī second attack involves modifying the firmware to run a proxy server on port 80 instead of the Web interface. However, the researchers described several practical attacks. There are some limitations to what can be run on these devices since they only have 16MB of RAM and a slow CPU and most of the resources are already used by its default processes. Since the cameras are also connected to the local network, they can be used to identify and remotely attack local devices that wouldn't otherwise be accessible from the Internet, they said.
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This means they can run arbitrary software like a botnet client, a proxy or a scanner, the researchers said. The firmware is based on uClinux, a Linux-based operating system for embedded devices, so technically these cameras are Linux machines connected to the Internet.
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Once an attacker gains access to a camera he can determine its firmware version, download a copy from the Internet, unpack it, add rogue code to it and write it back to the device. This can be used to add a secondary administrator account to the camera.Ī third method is to perform a brute-force attack in order to guess the password, because the camera has no protection against this and the passwords are limited to 12 characters, the researchers said. There is also a way to exploit this vulnerability even with the latest firmware installed if you have operator-level credentials for the camera.Īnother method is to exploit a cross-site request forgery (CSRF) flaw in the interface by tricking the camera administrator to open a specifically crafted link.
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This memory dump will contain the administrator user name and password in clear text along with other sensitive information like Wi-Fi credentials or details about devices on the local network, the researchers said.Įven though the vendor has patched this vulnerability in the latest firmware, 99% of Foscam cameras on the Internet are still running older firmware versions and are vulnerable, they said. One method is to exploit a recently discovered vulnerability in the camera's Web interface that allows remote attackers to obtain a snapshot of the device's memory. For the rest that do have user-configured passwords, there are other ways to break in.
By scanning the entire *. name space an attacker could identify most Foscam cameras connected to the Internet, the researchers said.Īround two out of every 10 cameras allow users to log in with the default "admin" user name and no password, the researchers said. For example, Foscam cameras get assigned a hostname of the type. The vendors selling these cameras also have them configured to use their own dynamic DNS services.
Such a query will return more than 100,000 devices, the researchers said. One method involves using the Shodan search engine to search for an HTTP header specific to the Web-based user interfaces of the cameras. Finding the cameras is easy and can be done in several ways.
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