Ledger Mobile App to be Available

Ledger Live app allows transactions to be performed via Bluetooth using a Ledger Nano X 
29 January 2019   712

Ledger announced the release of mobile applications for iOS and Android devices. This is reproted in official company's Twitter account.

French company says that using the Ledger Live application, users of Ledger Nano S and Ledger Blue have the opportunity to view their balances by scanning the QR code available in the desktop version of the product.

Currently, the application is in consultation mode, but it allows transactions to be performed wirelessly (via Bluetooth) using a Ledger Nano X device. In the future, Ledger Nano S users will also be able to carry out transactions via an OTG cable. This feature, as noted, will only be available for Android smartphones.

It is also planned to expand these functions to the desktop application.

Ledger Live mobile apps are compatible with devices on iOS 9+ or Android Lollipop (5) and above.

Ledger to Discover HSM Vulnerability

HSM is an external device designed to store public and private keys used to generate digital signatures and to encrypt data, used by banks, exchanges, etc
10 June 2019   1639

A group of researchers from Ledger identified several vulnerabilities in the Hardware Security Module (HSM) devices, which can be used to extract keys or perform a remote attack to replace the firmware of an HSM device. The problem report is currently available only in French, the English-language report is scheduled to be published in August during the Blackhat USA 2019 conference. HSM is a specialized external device designed to store public and private keys used to generate digital signatures and to encrypt data.

HSM allows you to significantly increase protection, as it completely isolates keys from the system and applications, only by providing an API to perform basic cryptographic primitives implemented on the device side. Typically, HSM is used in areas where you need to provide the highest protection, for example, in banks, cryptocurrency exchanges, certification centers for checking and generating certificates and digital signatures.

The proposed attack methods allow an unauthenticated user to gain complete control over the contents of the HSM, including extracting all the cryptographic keys and administrative credentials stored on the device. The problems are caused by a buffer overflow in the internal PKCS # 11 command handler and an error in the implementation of the cryptographic protection of the firmware, which bypasses the firmware check using the PKCS # 1v1.5 digital signature and initiates loading the own firmware in the HSM.

The name of the manufacturer, the HSM devices of which have vulnerabilities, has not yet been disclosed, but it is argued that the problem devices are used by some large banks and cloud service providers. At the same time it is reported that information about the problems was previously sent to the manufacturer and it has already eliminated vulnerabilities in the fresh firmware update. Independent researchers suggest that the problem may be in the devices of the company Gemalto, which in May released an update to Sentinel LDK with the elimination of vulnerabilities, access to information about which is still closed.