A vulnerability in the deterministic random bit generator (DRBG), also known as pseudorandom number generator (PRNG), in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco ASA 5506-X, ASA 5508-X, and ASA 5516-X Firewalls could allow an unauthenticated, remote malicious user to cause a cryptographic collision, enabling the malicious user to discover the private key of an affected device. This vulnerability is due to insufficient entropy in the DRBG for the affected hardware platforms 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 malicious user 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
cisco adaptive_security_appliance |
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cisco firepower_threat_defense |
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