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CVE-2020-3189— Cisco Firepower Threat Defense Software VPN System Logging Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco Firepower Threat Defense Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Firepower Threat Defense（FTD）是美国思科（Cisco）公司的一套提供下一代防火墙服务的统一软件。 Cisco FTD Software中的VPN System Logging功能存在资源管理错误漏洞，该漏洞源于在VPN会话创建或删除时程序没有为所生成的VPN System Logging事件正确地释放内存。远程攻击者可通过不断创建或删除VPN隧道连接利用该漏洞造成系统内存耗尽，导致拒绝服务。以下产品及版本受到影响：Cisco FTD Software 6.2.3.1

AI Predicted 5.9 Difficulty: Easy EPSS 1.80% · P76
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I. Basic Information for CVE-2020-3189

Vulnerability Information
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Vulnerability Title
Cisco Firepower Threat Defense Software VPN System Logging Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Firepower Threat Defense 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower Threat Defense（FTD）是美国思科（Cisco）公司的一套提供下一代防火墙服务的统一软件。 Cisco FTD Software中的VPN System Logging功能存在资源管理错误漏洞，该漏洞源于在VPN会话创建或删除时程序没有为所生成的VPN System Logging事件正确地释放内存。远程攻击者可通过不断创建或删除VPN隧道连接利用该漏洞造成系统内存耗尽，导致拒绝服务。以下产品及版本受到影响：Cisco FTD Software 6.2.3.1
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Firepower Threat Defense Software n/a -

II. Public POCs for CVE-2020-3189

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III. Intelligence Information for CVE-2020-3189

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Vendor Advisories for CVE-2020-3189 (1)

Same Patch Batch · Cisco · 2020-05-06 · 35 CVEs total

CVE-2020-3298 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Malformed
CVE-2020-3246 Cisco Umbrella Carriage Return Line Feed Injection Vulnerability
CVE-2020-3253 Cisco Firepower Threat Defense Software Shell Access Vulnerability
CVE-2020-3254 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Media Gat
CVE-2020-3255 Cisco Firepower Threat Defense Software Packet Flood Denial of Service Vulnerability
CVE-2020-3256 Cisco Hosted Collaboration Mediation Fulfillment XML External Expansion Vulnerability
CVE-2020-3259 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3283 Cisco Firepower 1000 Series SSL/TLS Denial of Service Vulnerability
CVE-2020-3285 Cisco Firepower Threat Defense Software SSL/TLS URL Category Bypass Vulnerability
CVE-2020-3196 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS D
CVE-2020-3301 Cisco Firepower Management Center Static Credential Vulnerabilities
CVE-2020-3302 Cisco Firepower Management Center File Overwrite Vulnerability
CVE-2020-3303 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv1 Den
CVE-2020-3305 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software BGP Denia
CVE-2020-3306 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software DHCP Deni
CVE-2020-3307 Cisco Firepower Management Center Arbitrary Log File Write Vulnerability
CVE-2020-3308 Cisco Firepower Threat Defense Software Signature Verification Bypass Vulnerability
CVE-2020-3315 Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability
CVE-2020-3178 Cisco Content Security Management Appliance Open Redirect Vulnerabilities
CVE-2020-3179 Cisco Firepower Threat Defense Software Generic Routing Encapsulation Tunnel IPv6 Denial o

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Firepower Threat Defense Software
Same vendor: Cisco
Same weakness: CWE-400

V. Comments for CVE-2020-3189

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