Thank you for downloading Binwalk for Mac from our software library. The download was scanned for viruses by our system. We also recommend you check the files before installation. The version of the Mac program you are about to download is 1.2. The contents of the download are original and were not modified in any way. “Since WiFi probe request/response packets are not encrypted, an attacker can gather the MAC address (the MAC address used by the algorithm is the LAN MAC) and serial number of a target by sending a single probe request packet to a victim access point. HackPorts was developed as a penetration testing framework with accompanying tools and exploits that run natively on Mac platforms. HackPorts is a ‘super-project’ that leverages existing code porting efforts, security professionals can now use hundreds of penetration tools on Mac systems without the need for Virtual Machines.
A few months ago, Atredis Partners had an opportunity to look at the GE Healthcare device. This device connects to a hospital network to transfer reports to a centralized server, simplifying the workflow for EKG measurements. To facilitate transfer of this data, GE Healthcare offers MobileLink, a WiFi enabled solution for collecting measurements.
The MAC5500 device does not directly connect to a WiFi network. Instead, it uses a serial to WiFi bridge made by Silex Technology. Two models of this bridge are supported by MobileLink: the SDS-500 and SD-320AN. Atredis Partners identified vulnerabilities in these devices that allow for authentication bypass and remote command execution.
These vulnerabilities resulted in ICS-CERT advisory. Atredis Partners disclosed these vulnerabilities according to our. Silex and GE Healthcare have provided a firmware update which resolves the code execution flaw and updated their documentation for the authentication bypass issue. SDS-500 Authentication Bypass (CVE-2018-6020) The first vulnerability is an authentication bypass for the SDS-500 device.
The SDS-500 device uses bearer token authentication to validate that a user has logged in and has access to a given resource. The check for this token is only performed for HTTP GET requests. HTTP POST requests, which are used to change device settings, are allowed without the token. The device administrator can configure an 'update' password to force authentication of POST requests, but this feature is disabled by default. By performing a POST request, an attacker can change any device setting. This includes the ability to change the device password.
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In a clinical environment, this may lead to a loss of availability if the device's parameters are modified. SD-320AN Command Injection (CVE-2018-6021) The SD-320AN is a newer serial to WiFi bridge made by Silex, and is replacing the SDS-500 for some MobileLink applications. Unlike the older SDS-500, the SD-320AN runs a Linux based operating system. The SD-320AN is configured via a web interface, which is implemented by a CGI application written in C. In reviewing the application, multiple calls to system() were identified. A command injection vulnerability was found in one of these calls. The SD-320AN firmware update package was found on the Silex website. Searching the global address book in outlook for mac.
This update package is a ZIP file that contains a firmware image named 'SD-320.bin'. Running the binwalk utility on this file indicates that it contains a bzip2-compressed Linux filesystem starting at offset zero. Conclusions Medical devices with network connectivity pose a risk to hospital infrastructure. Security requirements for these devices are minimal and security may not be a high priority to the manufacturer. Third-party components such as the Silex bridges discussed in this article present an additional challenge to OEMs. While the vulnerabilities discussed in this article do not pose a risk to human life, they may allow an attacker to gain persistence in a medical network.