First published: Thu Oct 27 2016(Updated: )
A vulnerability in the local Certificate Authority (CA) feature of Cisco ASA Software before 9.6(1.5) could allow an unauthenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to improper handling of crafted packets during the enrollment operation. An attacker could exploit this vulnerability by sending a crafted enrollment request to the affected system. An exploit could allow the attacker to cause the reload of the affected system. Note: Only HTTPS packets directed to the Cisco ASA interface, where the local CA is allowing user enrollment, can be used to trigger this vulnerability. This vulnerability affects systems configured in routed firewall mode and in single or multiple context mode.
Credit: ykramarz@cisco.com ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco Adaptive Security Appliance | =8.0.2.11 | |
Cisco Adaptive Security Appliance | =8.0.2.15 | |
Cisco Adaptive Security Appliance | =8.0.3 | |
Cisco Adaptive Security Appliance | =8.0.3.6 | |
Cisco Adaptive Security Appliance | =8.0.3.12 | |
Cisco Adaptive Security Appliance | =8.0.3.19 | |
Cisco Adaptive Security Appliance | =8.0.4 | |
Cisco Adaptive Security Appliance | =8.0.4.3 | |
Cisco Adaptive Security Appliance Software | =8.0.4.9 | |
Cisco Adaptive Security Appliance Software | =8.0.4.16 | |
Cisco Adaptive Security Appliance Software | =8.0.4.23 | |
Cisco Adaptive Security Appliance Software | =8.0.4.25 | |
Cisco Adaptive Security Appliance Software | =8.0.4.28 | |
Cisco Adaptive Security Appliance Software | =8.0.4.31 | |
Cisco Adaptive Security Appliance Software | =8.0.4.32 | |
Cisco Adaptive Security Appliance Software | =8.0.4.33 | |
Cisco Adaptive Security Appliance Software | =8.0.5 | |
Cisco Adaptive Security Appliance Software | =8.0.5.20 | |
Cisco Adaptive Security Appliance Software | =8.0.5.23 | |
Cisco Adaptive Security Appliance Software | =8.0.5.25 | |
Cisco Adaptive Security Appliance Software | =8.0.5.27 | |
Cisco Adaptive Security Appliance Software | =8.0.5.28 | |
Cisco Adaptive Security Appliance Software | =8.0.5.31 | |
Cisco Adaptive Security Appliance Software | =8.1.0.104 | |
Cisco Adaptive Security Appliance Software | =8.1.1 | |
Cisco Adaptive Security Appliance Software | =8.1.1.6 | |
Cisco Adaptive Security Appliance Software | =8.1.2 | |
Cisco Adaptive Security Appliance Software | =8.1.2.13 | |
Cisco Adaptive Security Appliance Software | =8.1.2.15 | |
Cisco Adaptive Security Appliance Software | =8.1.2.16 | |
Cisco Adaptive Security Appliance Software | =8.1.2.19 | |
Cisco Adaptive Security Appliance Software | =8.1.2.23 | |
Cisco Adaptive Security Appliance Software | =8.1.2.24 | |
Cisco Adaptive Security Appliance Software | =8.1.2.49 | |
Cisco Adaptive Security Appliance Software | =8.1.2.50 | |
Cisco Adaptive Security Appliance Software | =8.1.2.55 | |
Cisco Adaptive Security Appliance Software | =8.1.2.56 | |
Cisco Adaptive Security Appliance Software | =8.2.0.45 | |
Cisco Adaptive Security Appliance Software | =8.2.1 | |
Cisco Adaptive Security Appliance Software | =8.2.1.11 | |
Cisco Adaptive Security Appliance Software | =8.2.2 | |
Cisco Adaptive Security Appliance Software | =8.2.2.9 | |
Cisco Adaptive Security Appliance Software | =8.2.2.10 | |
Cisco Adaptive Security Appliance Software | =8.2.2.12 | |
Cisco Adaptive Security Appliance Software | =8.2.2.16 | |
Cisco Adaptive Security Appliance Software | =8.2.2.17 | |
Cisco Adaptive Security Appliance Software | =8.2.3 | |
Cisco Adaptive Security Appliance Software | =8.2.4 | |
Cisco Adaptive Security Appliance Software | =8.2.4.1 | |
Cisco Adaptive Security Appliance Software | =8.2.4.4 | |
Cisco Adaptive Security Appliance Software | =8.2.5 | |
Cisco Adaptive Security Appliance Software | =8.2.5.13 | |
Cisco Adaptive Security Appliance Software | =8.2.5.22 | |
Cisco Adaptive Security Appliance Software | =8.2.5.26 | |
Cisco Adaptive Security Appliance Software | =8.2.5.33 | |
Cisco Adaptive Security Appliance Software | =8.2.5.40 | |
Cisco Adaptive Security Appliance Software | =8.2.5.41 | |
Cisco Adaptive Security Appliance Software | =8.2.5.46 | |
Cisco Adaptive Security Appliance Software | =8.2.5.48 | |
Cisco Adaptive Security Appliance Software | =8.2.5.50 | |
Cisco Adaptive Security Appliance Software | =8.2.5.52 | |
Cisco Adaptive Security Appliance Software | =8.2.5.55 | |
Cisco Adaptive Security Appliance Software | =8.2.5.57 | |
Cisco Adaptive Security Appliance Software | =8.2.5.59 | |
Cisco Adaptive Security Appliance Software | =8.3.1 | |
Cisco Adaptive Security Appliance Software | =8.3.1.1 | |
Cisco Adaptive Security Appliance Software | =8.3.1.4 | |
Cisco Adaptive Security Appliance Software | =8.3.1.6 | |
Cisco Adaptive Security Appliance Software | =8.3.2 | |
Cisco Adaptive Security Appliance Software | =8.3.2.4 | |
Cisco Adaptive Security Appliance Software | =8.3.2.13 | |
Cisco Adaptive Security Appliance Software | =8.3.2.23 | |
Cisco Adaptive Security Appliance Software | =8.3.2.25 | |
Cisco Adaptive Security Appliance Software | =8.3.2.31 | |
Cisco Adaptive Security Appliance Software | =8.3.2.33 | |
Cisco Adaptive Security Appliance Software | =8.3.2.34 | |
Cisco Adaptive Security Appliance Software | =8.3.2.37 | |
Cisco Adaptive Security Appliance Software | =8.3.2.39 | |
Cisco Adaptive Security Appliance Software | =8.3.2.40 | |
Cisco Adaptive Security Appliance Software | =8.3.2.41 | |
Cisco Adaptive Security Appliance Software | =8.3.2.44 | |
Cisco Adaptive Security Appliance Software | =8.4.0 | |
Cisco Adaptive Security Appliance Software | =8.4.1 | |
Cisco Adaptive Security Appliance Software | =8.4.1.3 | |
Cisco Adaptive Security Appliance Software | =8.4.1.11 | |
Cisco Adaptive Security Appliance Software | =8.4.2 | |
Cisco Adaptive Security Appliance Software | =8.4.2.1 | |
Cisco Adaptive Security Appliance Software | =8.4.2.8 | |
Cisco Adaptive Security Appliance Software | =8.4.3 | |
Cisco Adaptive Security Appliance Software | =8.4.3.8 | |
Cisco Adaptive Security Appliance Software | =8.4.3.9 | |
Cisco Adaptive Security Appliance Software | =8.4.4 | |
Cisco Adaptive Security Appliance Software | =8.4.4.1 | |
Cisco Adaptive Security Appliance Software | =8.4.4.3 | |
Cisco Adaptive Security Appliance Software | =8.4.4.5 | |
Cisco Adaptive Security Appliance Software | =8.4.4.9 | |
Cisco Adaptive Security Appliance Software | =8.4.5 | |
Cisco Adaptive Security Appliance Software | =8.4.5.6 | |
Cisco Adaptive Security Appliance Software | =8.4.6 | |
Cisco Adaptive Security Appliance Software | =8.4.7 | |
Cisco Adaptive Security Appliance Software | =8.4.7.3 | |
Cisco Adaptive Security Appliance Software | =8.4.7.15 | |
Cisco Adaptive Security Appliance Software | =8.4.7.22 | |
Cisco Adaptive Security Appliance Software | =8.4.7.23 | |
Cisco Adaptive Security Appliance Software | =8.4.7.26 | |
Cisco Adaptive Security Appliance Software | =8.4.7.28 | |
Cisco Adaptive Security Appliance Software | =8.4.7.29 | |
Cisco Adaptive Security Appliance Software | =8.6.1 | |
Cisco Adaptive Security Appliance Software | =8.6.1.1 | |
Cisco Adaptive Security Appliance Software | =8.6.1.2 | |
Cisco Adaptive Security Appliance Software | =8.6.1.5 | |
Cisco Adaptive Security Appliance Software | =8.6.1.10 | |
Cisco Adaptive Security Appliance Software | =8.6.1.12 | |
Cisco Adaptive Security Appliance Software | =8.6.1.13 | |
Cisco Adaptive Security Appliance Software | =8.6.1.14 | |
Cisco Adaptive Security Appliance Software | =8.6.1.17 | |
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 | |
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 | =9.1\(7\)4 | |
Cisco Adaptive Security Appliance Software | =9.1\(7\)6 | |
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 | =9.3\(1.50\) | |
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 | =9.4.0.115 | |
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 | =9.5.1 | |
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 | =9.6.0 | |
Cisco Adaptive Security Appliance Software | =9.6.1 | |
Cisco Adaptive Security Appliance Software | =9.6.1.3 | |
Cisco Adaptive Security Appliance Software | =8.0.2.11 | |
Cisco Adaptive Security Appliance Software | =8.0.2.15 | |
Cisco Adaptive Security Appliance Software | =8.0.3 | |
Cisco Adaptive Security Appliance Software | =8.0.3.6 | |
Cisco Adaptive Security Appliance Software | =8.0.3.12 | |
Cisco Adaptive Security Appliance Software | =8.0.3.19 | |
Cisco Adaptive Security Appliance Software | =8.0.4 | |
Cisco Adaptive Security Appliance Software | =8.0.4.3 |
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CVE-2016-6431 is classified as a high-severity vulnerability that can cause a reload of affected Cisco ASA systems.
To fix CVE-2016-6431, upgrade your Cisco ASA software to version 9.6(1.5) or later.
CVE-2016-6431 affects multiple versions of Cisco Adaptive Security Appliance Software prior to 9.6(1.5).
CVE-2016-6431 can be exploited by an unauthenticated remote attacker to cause a reload of the Cisco ASA system.
There is no specific workaround to mitigate CVE-2016-6431; the recommended action is to update the software.