CVE-2021-40125
published 2021-10-27CVE-2021-40125: A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat…
PriorityP434medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.98%
58.2th percentile
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
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | adaptive_security_appliance | — | — |
| cisco | adaptive_security_appliance_software | >= 9.14.0 < 9.14.3.9 | 9.14.3.9 |
| cisco | adaptive_security_appliance_software | >= 9.15.0 < 9.15.1.17 | 9.15.1.17 |
| cisco | adaptive_security_appliance_software | >= 9.16.0 < 9.16.2 | 9.16.2 |
| cisco | adaptive_security_appliance_software | >= 9.8.0 < 9.8.4.40 | 9.8.4.40 |
| cisco | adaptive_security_appliance_software | >= 9.9.0 < 9.12.4.30 | 9.12.4.30 |
| cisco | asa_5505_firmware | — | — |
| cisco | asa_5512-x_firmware | — | — |
| cisco | asa_5515-x_firmware | — | — |
| cisco | asa_5525-x_firmware | — | — |
| cisco | asa_5545-x_firmware | — | — |
| cisco | asa_5555-x_firmware | — | — |
| cisco | asa_5580_firmware | — | — |
| cisco | asa_5585-x_firmware | — | — |
| cisco | cisco_adaptive_security_appliance_software | — | — |
| cisco | firepower_threat_defense | < 6.4.0.13 | 6.4.0.13 |
| cisco | firepower_threat_defense | >= 6.6.0 < 6.6.5 | 6.6.5 |
| cisco | firepower_threat_defense | >= 6.7.0 < 6.7.0.3 | 6.7.0.3 |
| cisco | firepower_threat_defense | >= 7.0.0 < 7.0.1 | 7.0.1 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.06.3MEDIUMAV:N/AC:M/Au:S/C:N/I:N/A:C
vendor_cisco5.3MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability
vendor_cisco·2021-10-27·CVSS 5.3
CVE-2021-40125 [MEDIUM] CWE-416 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability
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 relo
Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability
vendor_cisco·CVSS 3.1
CVE-2021-40125 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Site-to-Site VPN Denial of Service Vulnerability
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
GHSA
GHSA-cg2g-27wj-x8x6: A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower
ghsa_unreviewed·2022-05-24
CVE-2021-40125 [MEDIUM] CWE-400 GHSA-cg2g-27wj-x8x6: A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-10-27
Published