Vulnerability identifier: #VU99338
Vulnerability risk: High
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco Adaptive Security Appliance (ASA)
Hardware solutions /
Security hardware applicances
Cisco Firepower Threat Defense (FTD)
Hardware solutions /
Security hardware applicances
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the Internet Key Exchange version 2 (IKEv2) protocol for VPN termination. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Cisco Adaptive Security Appliance (ASA): 7.2.0 - 7.2.8.1, 7.3.0 - 7.3.1.2, 7.4.0 - 7.4.1.1, 9.20.1 - 9.20.2.21, 9.18.1 - 9.18.4.29, 9.19.1 - 9.19.1.31
Cisco Firepower Threat Defense (FTD): 9.18.4 - 9.18.4.29, 9.19.1 - 9.19.1.31, 9.20.2 - 9.20.2.21, 7.2.8 - 7.2.8.1, 7.2.5 - 7.2.5.2, 7.4.1 - 7.4.1.1, 7.3.1 - 7.3.1.2, 7.2.6, 7.2.7, 7.4.0, 9.18.3 - 9.18.3.56, 9.20.1 - 9.20.1.5, 7.2.4 - 7.2.4.1, 7.3.0, 9.18.2 - 9.18.2.8, 7.2.3, 7.2.2, 9.18.1 - 9.18.1.3, 7.2.1, 7.2.0 - 7.2.0.1
External links
http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-9FgEyHsF
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.