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Adaptive Security Virtual Appliance (ASAv).ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers.ASA 5500-X Series Next-Generation Firewalls.ASA 5500 Series Adaptive Security Appliances.3000 Series Industrial Security Appliance (ISA).This vulnerability affects Cisco ASA Software that is running on the following Cisco products: This advisory is available at the following link: There are no workarounds that address all the features that are affected by this vulnerability. For a comprehensive list of vulnerable ASA features please refer to the table in the Vulnerable Products section.Ĭisco has released software updates that address this vulnerability. The risk of the vulnerability being exploited also depends on the accessibility of the interface to the attacker. To be vulnerable the ASA must have Secure Socket Layer (SSL) services or IKEv2 Remote Access VPN services enabled on an interface. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system, cause a reload of the affected device or stop processing of incoming VPN authentication requests. An attacker could exploit this vulnerability by sending a crafted XML packet to a vulnerable interface on an affected system. The vulnerability is due to an issue with allocating and freeing memory when processing a malicious XML payload.
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It was also possible that the ASA could stop processing incoming Virtual Private Network (VPN) authentication requests due to a low memory condition.
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Please see the Fixed Software section for more information.Ī vulnerability in the XML parser of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. In addition, it was also found that the original fix was incomplete so new fixed code versions are now available.
#Cisco asav or ftdv update#
Update from February 5, 2018: After further investigation, Cisco has identified additional attack vectors and features that are affected by this vulnerability.