Click the license again and select Show details.Ĥ.Click Offline files, click the generated offline license file and then click Download. It will be subtracted from the number of licenses that have not yet been allocated to any site (branch office). The number of generated offline licenses will display next to the initial unit count. When the License File Token is listed, make a note of it and type it into the ESET PROTECT token field in ESET Business Account.ģ.New offline licenses will be generated. To obtain the token, follow the ESET PROTECT Offline activation Online Help topic. If you select the check box next to Allow management with ESET PROTECT, you will be asked to provide an ESET PROTECT token. Otherwise, the product will have to be updated from a different location (mirror) that you configure. If you want the ESET product activated by this offline license file to be able to receive updates directly from the ESET servers (the target machine has internet access), then select the Include Username and Password check box. “We hope this work can inspire the community to improve SFA security.If there is a bundle license in ESET Business Account portal, click the icon in the Product column to display the products included.Ģ.Select a specific Product, set the number of Units you want to activate offline, type in the desired name (this name will display in the list of generated offline licenses) and click Generate. “The unprecedented threat needs to be settled in cooperation of both smartphone and fingerprint sensor manufacturers, while the problems can also be mitigated in OSes,” they wrote. To mitigate the CAMF flaw, the researchers recommended an additional error-cancel attempt limit setting – and more importantly, they urged vendors of fingerprint sensors to encrypt key data.Īnd it’s not just about smartphones – they warned that BrutePrint could also be applied to other biometric systems. BrutePrint attack overview How to Respond to the BrutePrint Threat Figure 1-1 Click Activate with a License Key. “Fingerprint image hijacking is feasible on all devices except for Apple, which is the only one that encrypts fingerprint data on SPI,” they added. If your product is not activated, a Product activation error will be shown. ESET Server Security for Microsoft Windows Server (formerly ESET File Security for Microsoft Windows Server) 10.0 0.0 (March 14, 2023) 9.0 7. “Together with the frequency that is possible for injection, the situation leads SFA vulnerable to MITM attack on SPI.” “SFA sensors except Touch ID do not encrypt any data and lack mutual authentication,” they wrote. They tested the attacks on the following devices, covering iOS, Android, and HarmonyOS: Apple iPhone SE and iPhone 7, Samsung Galaxy S10+, OnePlus 5T and 7 Pro, Huawei P40 and Mate30 Pro 5G, OPPO Reno Ace, Vivo X60 Pro, and Xiaomi Mi 11 Ultra.Īlso read: Mobile Malware: Threats and Solutions Fingerprint Image Hijackingįor fingerprint image hijacking, the researchers took advantage of a weakness in fingerprint sensors’ SPI protocol to enable man-in-the-middle attacks. Trying the attack on 10 different smartphone models with updated operating systems, the researchers were able to go three times over the attempt limit on Touch ID – and they successfully enabled unlimited attempts on Android devices, clearing the way for brute-force attacks. “Therefore, it exists across various models and OSes.” “Instead of an implementation bug, CAMF and MAL leverage logical defects in the authentication framework,” the researchers wrote. The two zero-days leveraged in the attack, either of which can be used to bypass attempt limits, are a Cancel-After-Match-Fail (CAML) flaw and a Match-After-Lock (MAL) flaw. “Specifically, the bypassing exploits two zero-day vulnerabilities in smartphone fingerprint authentication (SFA) framework, and the hijacking leverages the simplicity of SPI protocol,” the researchers wrote. Simply put, BrutePrint acts as a middleman to bypass any attempt limits and to hijack fingerprint images. The equipment costs around 15 dollars in total.”Īlso read: Google Launches Passkeys in Major Push for Passwordless Authentication Bypassing Attempt Limits “For specific smartphone models, adaptive flexible printed circuit (FPC) is required. “The adversarial equipment is mainly a printed circuit board (PCB), which is inexpensive and universal,” the researchers wrote. Yiling He of China’s Zhejiang University and Yu Chen of Tencent Security’s Xuanwu Lab are calling the attack BrutePrint, which they say can be used to hijack fingerprint images.Īn attack like BrutePrint could present a significant threat to passkeys, an increasingly popular way to replace passwords with authentication methods like fingerprint authentication or face recognition.Īnd the attack is cheap to carry out. Security researchers recently published a paper detailing an attack they say can be used to bypass smartphone fingerprint authentication.
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