CVE-2019-1706: Cisco Adaptive Security Appliance Software IPsec Denial of Service Vulnerability
First published: Fri May 03 2019(Updated: )
A vulnerability in the software cryptography module of the Cisco Adaptive Security Virtual Appliance (ASAv) and Firepower 2100 Series running Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause an unexpected reload of the device that results in a denial of service (DoS) condition. The vulnerability is due to a logic error with how the software cryptography module handles IPsec sessions. An attacker could exploit this vulnerability by creating and sending traffic in a high number of IPsec sessions through the targeted device. A successful exploit could cause the device to reload and result in a DoS condition.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Adaptive Security Appliance Software | >=9.9<=9.9.2.50 | |
| Cisco Asa-5506-x | ||
| Cisco Asa-5506h-x | ||
| Cisco Asa-5506w-x | ||
| Cisco Asa-5508-x | ||
| Cisco Asa-5516-x | ||
| Cisco Asa-5525-x | ||
| Cisco Asa-5545-x | ||
| Cisco Asa-5555-x | ||
| All of | ||
| Cisco Adaptive Security Appliance Software | >=9.9<=9.9.2.50 | |
| Any of | ||
| Cisco Asa-5506-x | ||
| Cisco Asa-5506h-x | ||
| Cisco Asa-5506w-x | ||
| Cisco Asa-5508-x | ||
| Cisco Asa-5516-x | ||
| Cisco Asa-5525-x | ||
| Cisco Asa-5545-x | ||
| Cisco Asa-5555-x |
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Reference Links
Frequently Asked Questions
What is CVE-2019-1706?
CVE-2019-1706 is a vulnerability in the software cryptography module of the Cisco Adaptive Security Virtual Appliance (ASAv) and Firepower 2100 Series running Cisco Adaptive Security Appliance (ASA) Software.
What is the severity of CVE-2019-1706?
CVE-2019-1706 has a severity rating of 8.6 (high).
How does CVE-2019-1706 affect Cisco Adaptive Security Appliance Software?
CVE-2019-1706 affects Cisco Adaptive Security Appliance Software versions 9.9 through 9.9.2.50, potentially causing an unexpected device reload.
How can an attacker exploit CVE-2019-1706?
An unauthenticated, remote attacker can exploit CVE-2019-1706 to cause an unexpected reload of the affected device.
Is there a fix available for CVE-2019-1706?
Yes, Cisco has released a security advisory with mitigation details for CVE-2019-1706. Please refer to the official Cisco Security Advisory for more information.
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- canonical/cisco asa-5506-x
- canonical/cisco asa-5506h-x
- canonical/cisco asa-5506w-x
- canonical/cisco asa-5508-x
- canonical/cisco asa-5516-x
- canonical/cisco asa-5525-x
- canonical/cisco asa-5545-x
- canonical/cisco asa-5555-x