CVE-2020-3189

Cisco Firepower Threat Defense Software VPN System Logging Denial of Service Vulnerability

Published May 6, 2020 CVSS 3.1 · 8.6 High EPSS 1.9% KEV · Not listed
Description
A vulnerability in the VPN System Logging functionality for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak that can deplete system memory over time, which can cause unexpected system behaviors or device crashes. The vulnerability is due to the system memory not being properly freed for a VPN System Logging event generated when a VPN session is created or deleted. An attacker could exploit this vulnerability by repeatedly creating or deleting a VPN tunnel connection, which could leak a small amount of system memory for each logging event. A successful exploit could allow the attacker to cause system memory depletion, which can lead to a systemwide denial of service (DoS) condition. The attacker does not have any control of whether VPN System Logging is configured or not on the device, but it is enabled by default.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2020-24460 A vulnerability in the VPN System Logging functionality for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a memory leak that can deplete system memory over time, which can cause unexpected system behaviors or device crashes. The vulnerability is due to the system memory not being properly freed for a VPN System Logging event generated when a VPN session is created or deleted. An attacker could exploit this vulnerability by repeatedly creating or deleting a VPN tunnel connection, which could leak a small amount of system memory for each logging event. A successful exploit could allow the attacker to cause system memory depletion, which can lead to a systemwide denial of service (DoS) condition. The attacker does not have any control of whether VPN System Logging is configured or not on the device, but it is enabled by default.
History
Type Values Removed Values Added
First Time appeared Cisco secure Firewall Threat Defense
CPEs cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.12:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.13:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.14:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_threat_defense:6.2.3.15:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.12:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.13:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.14:*:*:*:*:*:*:*
cpe:2.3:a:cisco:secure_firewall_threat_defense:6.2.3.15:*:*:*:*:*:*:*
Vendors & Products Cisco firepower Threat Defense
Cisco secure Firewall Threat Defense
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}