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CVE-2020-3563— Cisco Firepower Threat Defense Software TCP Flood 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 Firepower Threat Defense (FTD) 存在安全漏洞，这个漏洞是由于低效的内存管理造成的。攻击者可利用该漏洞可以通过向受影响设备上的特定端口发送大量TCP包来利用这个漏洞。成功的利用可能会让攻击者可利用该漏洞耗尽系统内存，从而导致设备意外地重新加载。

AI Predicted 7.5 Difficulty: Easy EPSS 1.42% · P71
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I. Basic Information for CVE-2020-3563

Vulnerability Information
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Vulnerability Title
Cisco Firepower Threat Defense Software TCP Flood Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the packet processing functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to inefficient memory management. An attacker could exploit this vulnerability by sending a large number of TCP packets to a specific port on an affected device. A successful exploit could allow the attacker to exhaust system memory, which could cause the device to reload unexpectedly. No manual intervention is needed to recover the device after it has reloaded.
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 (FTD) 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 Firepower Threat Defense (FTD) 存在安全漏洞，这个漏洞是由于低效的内存管理造成的。攻击者可利用该漏洞可以通过向受影响设备上的特定端口发送大量TCP包来利用这个漏洞。成功的利用可能会让攻击者可利用该漏洞耗尽系统内存，从而导致设备意外地重新加载。
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-2020-3563

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III. Intelligence Information for CVE-2020-3563

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Vendor Advisories for CVE-2020-3563 (1)

Same Patch Batch · Cisco · 2020-10-21 · 40 CVEs total

CVE-2020-3456 8.8 HIGH Cisco FXOS Software Firepower Chassis Manager Cross-Site Request Forgery Vulnerability
CVE-2020-3373 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IP Fragme
CVE-2020-3528 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPFv2 Li
CVE-2020-3529 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL VPN D
CVE-2020-3572 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS S
CVE-2020-3533 8.6 HIGH Cisco Firepower Threat Defense Software SNMP Denial of Service Vulnerability
CVE-2020-3514 8.2 HIGH Cisco Firepower Threat Defense Software Multi-Instance Container Escape Vulnerability
CVE-2020-3410 8.1 HIGH Cisco Firepower Management Center Software Common Access Card Authentication Bypass Vulner
CVE-2020-3555 6.8 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SIP Denia
CVE-2020-3581 6.1 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3582 6.1 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3583 6.1 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3599 6.1 MEDIUM Cisco Adaptive Security Appliance Software Web-Based Management Interface Reflected Cross-
CVE-2020-3580 6.1 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3565 5.8 MEDIUM Cisco Firepower Threat Defense Software TCP Intercept Bypass Vulnerability
CVE-2020-3585 5.3 MEDIUM Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability
CVE-2020-3578 5.3 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Po
CVE-2020-3557 5.3 MEDIUM Cisco Firepower Management Center Software Denial of Service Vulnerability
CVE-2020-3558 4.7 MEDIUM Cisco Firepower Management Center Software Open Redirect Vulnerability
CVE-2020-3299 Multiple Cisco Products SNORT HTTP Detection Engine File Policy Bypass Vulnerability

Showing top 20 of 40 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-2020-3563

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