CVE-2019-15256
A vulnerability in the Internet Key Exchange version 1 (IKEv1) feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper management of system memory. An attacker could exploit this vulnerability by sending malicious IKEv1 traffic to an affected device. The attacker does not need valid credentials to authenticate the VPN session, nor does the attacker's source address need to match a peer statement in the crypto map applied to the ingress interface of the affected device. An exploit could allow the attacker to exhaust system memory resources, leading to a reload of an affected device.
EPSS 0.98% · 77.1th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| cisco | asa_5505_firmware | 9.9\(2.4\), 201.4\(1.21\) |
| cisco | asa_5580_firmware | 9.9\(2.4\), 201.4\(1.21\) |
| cisco | asa_5545-x_firmware | 9.9\(2.4\), 201.4\(1.21\) |
| cisco | asa_5540_firmware | 9.9\(2.4\), 201.4\(1.21\) |
| cisco | asa_5515-x_firmware | 201.4\(1.21\), 9.9\(2.4\) |
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | * |
| cisco | asa_5525-x_firmware | 9.9\(2.4\), * |
| cisco | asa_5520_firmware | *, 201.4\(1.21\) |
| cisco | asa_5510_firmware | 9.9\(2.4\), 201.4\(1.21\) |
| cisco | asa_5555-x_firmware | 201.4\(1.21\), 9.9\(2.4\) |
| cisco | adaptive_security_appliance_software | 9.9, 9.10, 9.12 |
| cisco | asa_5512-x_firmware | 9.9\(2.4\), 201.4\(1.21\) |
| cisco | firepower_threat_defense | 6.2.0, 6.3.0 |
| cisco | asa_5550_firmware | 9.9\(2.4\), 201.4\(1.21\) |
Exploit Intelligence
Timeline
- Oct 2, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-ftd-container-esc advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-ssl-vpn-dos advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-ftd-ikev1-dos advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-cucm-csrf advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-ftd-fpmc-dos advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-fmc-rce advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-fmc-sql-inj advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-fxos-cmd-inject advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-ftd-sip-dos advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-fmc-rce-12689 advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-dos advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-ospf-lsa-dos advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-fmc-com-inj advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-15256 advisory