CVE-2022-20746— Cisco Firepower Threat Defense Software TCP Proxy 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)存在代码问题漏洞，该漏洞源于 TCP 流处理不当。未经身份验证的远程攻击者可以利用该漏洞触发拒绝服务 (DoS) 。
Possible ATT&CK Techniques 2 AI
T1203 · Exploitation for Client Execution T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-20746
Vulnerability Information
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Vulnerability Title
Cisco Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the TCP proxy functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper handling of TCP flows. An attacker could exploit this vulnerability by sending a crafted stream of TCP traffic through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Firepower Threat Defense 代码问题漏洞
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)存在代码问题漏洞，该漏洞源于 TCP 流处理不当。未经身份验证的远程攻击者可以利用该漏洞触发拒绝服务 (DoS) 。
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-2022-20746
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2022-05-03 · 19 CVEs total
| CVE-2022-20759 | 8.8 HIGH | Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi |
| CVE-2022-20745 | 8.6 HIGH | Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi |
| CVE-2022-20751 | 8.6 HIGH | Cisco Firepower Threat Defense Software Snort Out of Memory Denial of Service Vulnerabilit |
| CVE-2022-20757 | 8.6 HIGH | Cisco Firepower Threat Defense Software Denial of Service Vulnerability |
| CVE-2022-20760 | 8.6 HIGH | Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software DNS Inspe |
| CVE-2022-20767 | 8.6 HIGH | Cisco Firepower Threat Defense Software DNS Enforcement Denial of Service Vulnerability |
| CVE-2022-20715 | 8.6 HIGH | Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Remote Ac |
| CVE-2022-20737 | 8.5 HIGH | Cisco Adaptive Security Appliance Software Clientless SSL VPN Heap Overflow Vulnerability |
| CVE-2022-20742 | 7.4 HIGH | Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IPsec IKE |
| CVE-2022-20743 | 6.5 MEDIUM | Cisco Firepower Management Center File Upload Security Bypass Vulnerability |
| CVE-2022-20740 | 6.1 MEDIUM | Cisco Firepower Management Center Software Cross-Site Scripting Vulnerability |
| CVE-2022-20627 | 5.4 MEDIUM | Cisco Firepower Management Center Software Cross-Site Scripting Vulnerabilities |
| CVE-2022-20628 | 5.4 MEDIUM | Cisco Firepower Management Center Software Cross-Site Scripting Vulnerabilities |
| CVE-2022-20629 | 5.4 MEDIUM | Cisco Firepower Management Center Software Cross-Site Scripting Vulnerabilities |
| CVE-2022-20748 | 5.3 MEDIUM | Cisco Firepower Threat Defense Software Local Malware Analysis Denial of Service Vulnerabi |
| CVE-2022-20729 | 4.4 MEDIUM | Cisco Firepower Threat Defense Software XML Injection Vulnerability |
| CVE-2022-20730 | 4.0 MEDIUM | Cisco Firepower Threat Defense Software Security Intelligence DNS Feed Bypass Vulnerabilit |
| CVE-2022-20744 | Cisco Firepower Management Center Software Information Disclosure Vulnerability |
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V. Comments for CVE-2022-20746
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