CVE-2021-40125
Description
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a trusted IKEv2 site-to-site VPN peer and in possession of valid IKEv2 credentials for that peer could exploit this vulnerability by sending malformed, authenticated IKEv2 messages to an affected device. A successful exploit could allow the attacker to trigger a reload of the device.
How to fix
- cisco adaptive_security_appliance_software9.8.4.40, 9.12.4.30, 9.14.3.9, 9.15.1.17, 9.16.2 or later
- cisco secure_firewall_threat_defense6.4.0.13, 6.6.5, 6.7.0.3, 7.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco adaptive_security_appliance_software | 9.8.0 ≤ v < 9.8.4.40, 9.9.0 ≤ v < 9.12.4.30, 9.14.0 ≤ v < 9.14.3.9, 9.15.0 ≤ v < 9.15.1.17, 9.16.0 ≤ v < 9.16.2 | 9.8.4.40, 9.12.4.30, 9.14.3.9, 9.15.1.17, 9.16.2 |
| cisco secure_firewall_threat_defense | v < 6.4.0.13, 6.6.0 ≤ v < 6.6.5, 6.7.0 ≤ v < 6.7.0.3, 7.0.0 ≤ v < 7.0.1 | 6.4.0.13, 6.6.5, 6.7.0.3, 7.0.1 |
| cisco asa_5512-x_firmware | 009.016\(001.025\) | — |
| cisco asa_5505_firmware | 009.016\(001.025\) | — |
| cisco asa_5515-x_firmware | 009.016\(001.025\) | — |
| cisco asa_5525-x_firmware | 009.016\(001.025\) | — |
| cisco asa_5545-x_firmware | 009.016\(001.025\) | — |
| cisco asa_5555-x_firmware | 009.016\(001.025\) | — |
| cisco asa_5580_firmware | 009.016\(001.025\) | — |
| cisco asa_5585-x_firmware | 009.016\(001.025\) | — |
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