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CVE-2020-3562— Cisco Firepower 2100 Series SSL/TLS Inspection 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 存在安全漏洞，该漏洞源于。该漏洞源于对特定SSL TLS消息的某些字段的输入验证不当造成的。攻击者可利用该漏洞可以利用此漏洞，通过受影响的设备发送格式错误的SSL TLS消息。成功利用该漏洞可以使攻击者可利用该漏洞导致受影响的设备重新加载，从而导致DoS状态。

AI Predicted 7.5 Difficulty: Easy EPSS 1.81% · P78
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I. Basic Information for CVE-2020-3562

Vulnerability Information
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Vulnerability Title
Cisco Firepower 2100 Series SSL/TLS Inspection Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the SSL/TLS inspection of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series firewalls could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation for certain fields of specific SSL/TLS messages. An attacker could exploit this vulnerability by sending a malformed SSL/TLS message through an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. 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
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Firepower Threat Defense 缓冲区错误漏洞
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 存在安全漏洞，该漏洞源于。该漏洞源于对特定SSL TLS消息的某些字段的输入验证不当造成的。攻击者可利用该漏洞可以利用此漏洞，通过受影响的设备发送格式错误的SSL TLS消息。成功利用该漏洞可以使攻击者可利用该漏洞导致受影响的设备重新加载，从而导致DoS状态。
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-2020-3562

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III. Intelligence Information for CVE-2020-3562

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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-119

V. Comments for CVE-2020-3562

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