First published: Thu Apr 20 2017(Updated: )
A vulnerability in the IPsec code of Cisco ASA Software could allow an authenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to improper parsing of malformed IPsec packets. An attacker could exploit this vulnerability by sending malformed IPsec packets to the affected system. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. An attacker needs to establish a valid IPsec tunnel before exploiting this vulnerability. This vulnerability affects Cisco ASA Software running on the following products: Cisco ASA 1000V Cloud Firewall, Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Firepower 9300 ASA Security Module, Cisco ISA 3000 Industrial Security Appliance. Fixed versions: 9.1(7.8) 9.2(4.15) 9.4(4) 9.5(3.2) 9.6(2). Cisco Bug IDs: CSCun16158.
Credit: ykramarz@cisco.com ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco Adaptive Security Appliance | =9.0.1 | |
Cisco Adaptive Security Appliance | =9.0.2 | |
Cisco Adaptive Security Appliance | =9.0.2.10 | |
Cisco Adaptive Security Appliance | =9.0.3 | |
Cisco Adaptive Security Appliance | =9.0.3.6 | |
Cisco Adaptive Security Appliance | =9.0.3.8 | |
Cisco Adaptive Security Appliance | =9.0.4 | |
Cisco Adaptive Security Appliance | =9.0.4.1 | |
Cisco Adaptive Security Appliance Software | =9.0.4.5 | |
Cisco Adaptive Security Appliance Software | =9.0.4.7 | |
Cisco Adaptive Security Appliance Software | =9.0.4.17 | |
Cisco Adaptive Security Appliance Software | =9.0.4.20 | |
Cisco Adaptive Security Appliance Software | =9.0.4.24 | |
Cisco Adaptive Security Appliance Software | =9.0.4.26 | |
Cisco Adaptive Security Appliance Software | =9.0.4.29 | |
Cisco Adaptive Security Appliance Software | =9.0.4.33 | |
Cisco Adaptive Security Appliance Software | =9.0.4.35 | |
Cisco Adaptive Security Appliance Software | =9.0.4.37 | |
Cisco Adaptive Security Appliance Software | =9.0.4.40 | |
Cisco Adaptive Security Appliance Software | =9.0.4.42 | |
Cisco Adaptive Security Appliance Software | =9.1\(7\)4 | |
Cisco Adaptive Security Appliance Software | =9.1\(7\)6 | |
Cisco Adaptive Security Appliance Software | =9.1\(7\)7 | |
Cisco Adaptive Security Appliance Software | =9.1.1 | |
Cisco Adaptive Security Appliance Software | =9.1.1.4 | |
Cisco Adaptive Security Appliance Software | =9.1.2 | |
Cisco Adaptive Security Appliance Software | =9.1.2.8 | |
Cisco Adaptive Security Appliance Software | =9.1.3 | |
Cisco Adaptive Security Appliance Software | =9.1.3.2 | |
Cisco Adaptive Security Appliance Software | =9.1.4 | |
Cisco Adaptive Security Appliance Software | =9.1.4.5 | |
Cisco Adaptive Security Appliance Software | =9.1.5 | |
Cisco Adaptive Security Appliance Software | =9.1.5.10 | |
Cisco Adaptive Security Appliance Software | =9.1.5.12 | |
Cisco Adaptive Security Appliance Software | =9.1.5.15 | |
Cisco Adaptive Security Appliance Software | =9.1.5.21 | |
Cisco Adaptive Security Appliance Software | =9.1.6 | |
Cisco Adaptive Security Appliance Software | =9.1.6.1 | |
Cisco Adaptive Security Appliance Software | =9.1.6.4 | |
Cisco Adaptive Security Appliance Software | =9.1.6.6 | |
Cisco Adaptive Security Appliance Software | =9.1.6.8 | |
Cisco Adaptive Security Appliance Software | =9.1.6.10 | |
Cisco Adaptive Security Appliance Software | =9.2\(0.0\) | |
Cisco Adaptive Security Appliance Software | =9.2\(0.104\) | |
Cisco Adaptive Security Appliance Software | =9.2\(3.1\) | |
Cisco Adaptive Security Appliance Software | =9.2.1 | |
Cisco Adaptive Security Appliance Software | =9.2.2 | |
Cisco Adaptive Security Appliance Software | =9.2.2.4 | |
Cisco Adaptive Security Appliance Software | =9.2.2.7 | |
Cisco Adaptive Security Appliance Software | =9.2.2.8 | |
Cisco Adaptive Security Appliance Software | =9.2.3 | |
Cisco Adaptive Security Appliance Software | =9.2.3.3 | |
Cisco Adaptive Security Appliance Software | =9.2.3.4 | |
Cisco Adaptive Security Appliance Software | =9.2.4 | |
Cisco Adaptive Security Appliance Software | =9.2.4.2 | |
Cisco Adaptive Security Appliance Software | =9.2.4.4 | |
Cisco Adaptive Security Appliance Software | =9.2.4.8 | |
Cisco Adaptive Security Appliance Software | =9.2.4.10 | |
Cisco Adaptive Security Appliance Software | =9.2.4.13 | |
Cisco Adaptive Security Appliance Software | =9.2.4.14 | |
Cisco Adaptive Security Appliance Software | =9.3\(1.50\) | |
Cisco Adaptive Security Appliance Software | =9.3\(1.105\) | |
Cisco Adaptive Security Appliance Software | =9.3\(2.100\) | |
Cisco Adaptive Security Appliance Software | =9.3\(2.243\) | |
Cisco Adaptive Security Appliance Software | =9.3.1 | |
Cisco Adaptive Security Appliance Software | =9.3.1.1 | |
Cisco Adaptive Security Appliance Software | =9.3.2 | |
Cisco Adaptive Security Appliance Software | =9.3.2.2 | |
Cisco Adaptive Security Appliance Software | =9.3.3 | |
Cisco Adaptive Security Appliance Software | =9.3.3.1 | |
Cisco Adaptive Security Appliance Software | =9.3.3.2 | |
Cisco Adaptive Security Appliance Software | =9.3.3.5 | |
Cisco Adaptive Security Appliance Software | =9.3.3.6 | |
Cisco Adaptive Security Appliance Software | =9.3.3.9 | |
Cisco Adaptive Security Appliance Software | =9.3.3.10 | |
Cisco Adaptive Security Appliance Software | =9.3.3.11 | |
Cisco Adaptive Security Appliance Software | =9.3.5 | |
Cisco Adaptive Security Appliance Software | =9.4.0.115 | |
Cisco Adaptive Security Appliance Software | =9.4.1 | |
Cisco Adaptive Security Appliance Software | =9.4.1.1 | |
Cisco Adaptive Security Appliance Software | =9.4.1.2 | |
Cisco Adaptive Security Appliance Software | =9.4.1.3 | |
Cisco Adaptive Security Appliance Software | =9.4.1.5 | |
Cisco Adaptive Security Appliance Software | =9.4.2 | |
Cisco Adaptive Security Appliance Software | =9.4.2.3 | |
Cisco Adaptive Security Appliance Software | =9.4.3 | |
Cisco Adaptive Security Appliance Software | =9.4.3.3 | |
Cisco Adaptive Security Appliance Software | =9.4.3.4 | |
Cisco Adaptive Security Appliance Software | =9.4.3.6 | |
Cisco Adaptive Security Appliance Software | =9.4.3.8 | |
Cisco Adaptive Security Appliance Software | =9.4.3.11 | |
Cisco Adaptive Security Appliance Software | =9.4.3.12 | |
Cisco Adaptive Security Appliance Software | =9.4.4 | |
Cisco Adaptive Security Appliance Software | =9.5.1 | |
Cisco Adaptive Security Appliance Software | =9.5.2 | |
Cisco Adaptive Security Appliance Software | =9.5.2.6 | |
Cisco Adaptive Security Appliance Software | =9.5.2.10 | |
Cisco Adaptive Security Appliance Software | =9.5.2.14 | |
Cisco Adaptive Security Appliance Software | =9.5.3 | |
Cisco Adaptive Security Appliance Software | =9.5.3.1 | |
Cisco Adaptive Security Appliance Software | =9.6.0 | |
Cisco Adaptive Security Appliance Software | =9.6.1 | |
Cisco Adaptive Security Appliance Software | =9.6.1.3 | |
Cisco Adaptive Security Appliance Software | =9.6.1.5 | |
Cisco Adaptive Security Appliance Software | =9.6.1.10 | |
Cisco Adaptive Security Appliance Software | =9.6.2 | |
Cisco Adaptive Security Appliance Software | =9.0.1 | |
Cisco Adaptive Security Appliance Software | =9.0.2 | |
Cisco Adaptive Security Appliance Software | =9.0.2.10 | |
Cisco Adaptive Security Appliance Software | =9.0.3 | |
Cisco Adaptive Security Appliance Software | =9.0.3.6 | |
Cisco Adaptive Security Appliance Software | =9.0.3.8 | |
Cisco Adaptive Security Appliance Software | =9.0.4 | |
Cisco Adaptive Security Appliance Software | =9.0.4.1 |
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CVE-2017-6609 has a Medium severity rating due to its potential to allow an authenticated attacker to cause a reload of the affected system.
To fix CVE-2017-6609, it is essential to upgrade the Cisco ASA Software to a version that has the patches applied.
CVE-2017-6609 affects various versions of Cisco Adaptive Security Appliance Software, including versions 9.0.1 through 9.4.4.
CVE-2017-6609 allows an attacker to exploit the vulnerability by sending malformed IPsec packets to cause a reload of the affected Cisco ASA system.
There are no documented workarounds for CVE-2017-6609; the recommended action is to apply the available software update.