6.5

CVE-2021-40125

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cisco ≫ Secure Firewall Threat Defense Version < 6.4.0.13
Cisco ≫ Secure Firewall Threat Defense Version >= 6.6.0 < 6.6.5
Cisco ≫ Secure Firewall Threat Defense Version >= 6.7.0 < 6.7.0.3
Cisco ≫ Secure Firewall Threat Defense Version >= 7.0.0 < 7.0.1
Cisco ≫ Adaptive Security Appliance Software Version >= 9.8.0 < 9.8.4.40
Cisco ≫ Adaptive Security Appliance Software Version >= 9.9.0 < 9.12.4.30
Cisco ≫ Adaptive Security Appliance Software Version >= 9.14.0 < 9.14.3.9
Cisco ≫ Adaptive Security Appliance Software Version >= 9.15.0 < 9.15.1.17
Cisco ≫ Adaptive Security Appliance Software Version >= 9.16.0 < 9.16.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.02% 0.606
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NIST 6.3 6.8 6.9
AV:N/AC:M/Au:S/C:N/I:N/A:C
Cisco PSIRT 5.3 1.6 3.6
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-g4cmrr7C
Vendor Advisory