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CVE-2020-3444— Cisco SD-WAN Software Packet Filtering Bypass Vulnerability

Quick assessment

Affected
Cisco Cisco SD-WAN Solution
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 SD-WAN vEdge是美国思科（Cisco）公司的是一款路由器。该设备可为思科SD-WAN解决方案提供基本WAN，安全性和多云功能。 Cisco SD-WAN vEdge 存在输入验证错误漏洞，该漏洞源于网络系统或产品未对输入的数据进行正确的验证。攻击者可以通过制作具有特定特征的恶意TCP数据包并将其发送到目标设备来利用此漏洞绕过L3和L4流量过滤器，并将任意数据包注入网络。

AI Predicted 7.5 Difficulty: Easy EPSS 1.49% · P72

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-3444

Vulnerability Information
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Vulnerability Title
Cisco SD-WAN Software Packet Filtering Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the packet filtering features of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a targeted device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet into the network.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco SD-WAN vEdge 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco SD-WAN vEdge是美国思科（Cisco）公司的是一款路由器。该设备可为思科SD-WAN解决方案提供基本WAN，安全性和多云功能。 Cisco SD-WAN vEdge 存在输入验证错误漏洞，该漏洞源于网络系统或产品未对输入的数据进行正确的验证。攻击者可以通过制作具有特定特征的恶意TCP数据包并将其发送到目标设备来利用此漏洞绕过L3和L4流量过滤器，并将任意数据包注入网络。
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 SD-WAN Solution n/a -

II. Public POCs for CVE-2020-3444

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III. Intelligence Information for CVE-2020-3444

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Vendor Advisories for CVE-2020-3444 (1)

Same Patch Batch · Cisco · 2020-11-06 · 27 CVEs total

CVE-2020-3603 7.8 HIGH Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne
CVE-2020-3573 7.8 HIGH Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne
CVE-2020-3593 7.8 HIGH Cisco SD-WAN Software Privilege Escalation Vulnerability
CVE-2020-3594 7.8 HIGH Cisco SD-WAN Software Privilege Escalation Vulnerability
CVE-2020-3600 7.8 HIGH Cisco SD-WAN Software Privilege Escalation Vulnerability
CVE-2020-3604 7.8 HIGH Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne
CVE-2020-3595 7.8 HIGH Cisco SD-WAN Software Privilege Escalation Vulnerability
CVE-2020-3574 7.5 HIGH Cisco IP Phone TCP Packet Flood Denial of Service Vulnerability
CVE-2020-3588 7.3 HIGH Cisco Webex Meetings Desktop App Arbitrary Code Execution Vulnerability
CVE-2020-3556 7.3 HIGH Cisco AnyConnect Secure Mobility Client Arbitrary Code Execution Vulnerability
CVE-2020-27129 6.7 MEDIUM Cisco SD-WAN vManage Software Command Injection Vulnerability
CVE-2020-3592 6.5 MEDIUM Cisco SD-WAN vManage Software Authorization Bypass Vulnerability
CVE-2020-26084 6.5 MEDIUM Cisco Edge Fog Fabric Resource Exposure Vulnerability
CVE-2020-27128 6.5 MEDIUM Cisco SD-WAN vManage Software Arbitrary File Creation Vulnerability
CVE-2020-3590 6.4 MEDIUM Cisco SD-WAN vManage Software Cross-Site Scripting Vulnerability
CVE-2020-3587 6.4 MEDIUM Cisco SD-WAN vManage Software Cross-Site Scripting Vulnerability
CVE-2020-3371 6.3 MEDIUM Cisco Integrated Management Controller Command Injection Vulnerability
CVE-2020-3551 6.1 MEDIUM Cisco Identity Services Engine Cross-Site Scripting Vulnerability
CVE-2020-27123 5.5 MEDIUM Cisco AnyConnect Secure Mobility Client for Windows Arbitrary File Read Vulnerability
CVE-2020-26083 4.8 MEDIUM Cisco Identity Services Engine Cross-Site Scripting Vulnerability

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco SD-WAN Solution
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2020-3444

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