Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys Vulnerability

A vulnerability in the Deterministic Random Bit Generator (DRBG), also known as Pseudorandom Number Generator (PRNG), used in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a cryptographic collision, enabling the attacker to discover the private key of an affected device. The vulnerability is due to insufficient entropy in the DRBG when generating cryptographic keys. An attacker could exploit this vulnerability by generating a large number of cryptographic keys on an affected device and looking for collisions with target devices. A successful exploit could allow the attacker to impersonate an affected target device or to decrypt traffic secured by an affected key that is sent to or from an affected target device.

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PRNG中信息熵不充分

Cisco Adaptive Security Appliance Software和Cisco Firepower Threat Defense Software 安全漏洞

Cisco Firepower 4100 Series等都是美国思科（Cisco）公司的产品。Cisco Firepower 4100 Series是一款4100系列的防火墙设备。FTD Software是其中的一套提供下一代防火墙服务的统一软件。Cisco 3000 Series Industrial Security Appliances是一款3000系列防火墙设备。ASA Software是其中的一套防火墙和网络安全平台。该平台提供了对数据和网络资源的高度安全的访问等功能。Adaptive Secu

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