Huawei notified Trustwave that we did not connect with the Huawei Product Security Incident Response Team (PSIRT) email alias. In the last 24 hours before publishing, Huawei reached out to Trustwave SpiderLabs. We were provided a new support contact email address.ĭecem– Trustwave attempted to connect to provided email addresses multiple times. support via phone in an attempt to find the appropriate contact. Non-responsive to initial email communications.ĭecem– Contacted Huawei U.S. Octo– Initial email communication to Huawei to multiple security and support email addresses.

Malicious actors can take advantage of vulnerabilities like this by getting an initial foothold that triggers the installation of more robust malware.Īs a part of our Responsible Disclosure policy, Trustwave SpiderLabs attempted to contact Huawei multiple times to report the vulnerability. The issue affects multiuser environments where one user account can execute code as another user without the latter one knowing about it. All a malicious user needs to do is to replace the file with their own desired code and wait for a legitimate user to start using the cellular data service via Huawei device. This file has a special purpose: when a user logs on to the computer and inserts the dongle, that file is automatically executed to open up a web browser with the device management interface. Library/StartupItems/MobileBrServ/mbbserviceopen.app/Contents/MacOS/mbbserviceopen Simply put, any authenticated user on the computer can overwrite the file: There are also many used and new devices available on eBay and other online retailers.ĭuring a quick analysis of the software, I spotted a security vulnerability: one of the installed files is missing appropriate access control settings. The device itself – Huawei LTE USB Stick E3372 – looks like a USB thumb drive and comes with software to install on macOS called HiLink.Īny consumer laptop/computer with a USB port can be easily connected to the Internet with this USB dongle – just plug it in, install the software that comes with it, and you’re ready to go (provided the dongle has a SIM card inserted with a working data plan of course).Īt the time of writing, this device can be purchased in Germany and Italy directly from Huawei:

Huawei has a mobile broadband service that allows Internet connectivity via cellular networks by using a small USB dongle. In today's world, more and more devices are connected to the Internet for on-the-go connectivity.

Huawei usb dongle.