Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software could allow a remote attacker to obtain sensitive information, caused by a logic error when the RSA key is stored in memory on a hardware platform that performs hardware-based cryptography. By utilize side-channel attack techniques, an attacker could exploit this vulnerability to obtain the RSA private key information, and use this information to launch further attacks against the affected system.
Cisco Adaptive Security Appliance Software is vulnerable to HTTP request smuggling, caused by improper validation of input passed to the Clientless SSL VPN component. By persuading a victim to visit a specially-crafted Website, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
Refer to Cisco Security Advisory for patch, upgrade or suggested workaround information.