CVE-2021-40125: 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 au...

Summary

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...

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
cisco	secure_firewall_threat_defense	< 6.4.0.13 >= 6.6.0, < 6.6.5 >= 6.7.0, < 6.7.0.3 >= 7.0.0, < 7.0.1 `cpe:2.3:a:cisco:secure_firewall_threat_defense::::::::`
cisco	adaptive_security_appliance_software	>= 9.8.0, < 9.8.4.40 >= 9.9.0, < 9.12.4.30 >= 9.14.0, < 9.14.3.9 >= 9.15.0, < 9.15.1.17 >= 9.16.0, < 9.16.2 `cpe:2.3:o:cisco:adaptive_security_appliance_software::::::::`
cisco	asa_5512-x_firmware	009.016\(001.025\) `cpe:2.3:o:cisco:asa_5512-x_firmware:009.016\(001.025\):::::::*`
cisco	asa_5505_firmware	009.016\(001.025\) `cpe:2.3:o:cisco:asa_5505_firmware:009.016\(001.025\):::::::*`
cisco	asa_5515-x_firmware	009.016\(001.025\) `cpe:2.3:o:cisco:asa_5515-x_firmware:009.016\(001.025\):::::::*`
cisco	asa_5525-x_firmware	009.016\(001.025\) `cpe:2.3:o:cisco:asa_5525-x_firmware:009.016\(001.025\):::::::*`
cisco	asa_5545-x_firmware	009.016\(001.025\) `cpe:2.3:o:cisco:asa_5545-x_firmware:009.016\(001.025\):::::::*`
cisco	asa_5555-x_firmware	009.016\(001.025\) `cpe:2.3:o:cisco:asa_5555-x_firmware:009.016\(001.025\):::::::*`
cisco	asa_5580_firmware	009.016\(001.025\) `cpe:2.3:o:cisco:asa_5580_firmware:009.016\(001.025\):::::::*`
cisco	asa_5585-x_firmware	009.016\(001.025\) `cpe:2.3:o:cisco:asa_5585-x_firmware:009.016\(001.025\):::::::*`

Original advisory text

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 au...

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.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-a... Vendor Advisory