CVE-2021-40125
6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: NVD
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.
Affected (17)
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| 9.14.0 ≤ version < 9.14.3.9 | |
| version < 6.4.0.13 |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.016(001.025) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5512 X | All versions |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.016(001.025) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5505 | All versions |
Configuration D
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.016(001.025) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5515 X | All versions |
Configuration E
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.016(001.025) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5525 X | All versions |
Configuration F
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.016(001.025) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5545 X | All versions |
Configuration G
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.016(001.025) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5555 X | All versions |
Configuration H
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.016(001.025) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5580 | All versions |
Configuration I
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.016(001.025) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5585 X | All versions |
Related CWEs
CWE-400
Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
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.
References (2)
Source: psirt@cisco.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Timeline
No history available yet.