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CVE-2020-10136— IP-in-IP protocol allows a remote, unauthenticated attacker to route arbitrary network traffic

Quick assessment

Affected
IETF RFC2003 - IP Encapsulation within IP
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco NX-OS Software中存在代码问题漏洞，该漏洞源于程序解封并处理了IP数据包（发往本地配置的IP地址）中的IP。远程攻击者可借助IP数据包中特制的IP利用该漏洞绕过访问控制列表或造成拒绝服务。以下产品及版本受到影响：Nexus 1000 Virtual Edge for VMware vSphere；Nexus 1000V Switch for Microsoft Hyper

AI Predicted 7.5 Difficulty: Moderate EPSS 28.54% · P98
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I. Basic Information for CVE-2020-10136

Vulnerability Information
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Vulnerability Title
IP-in-IP protocol allows a remote, unauthenticated attacker to route arbitrary network traffic
Source: CVE Program / CVE List V5
Vulnerability Description
IP-in-IP protocol specifies IP Encapsulation within IP standard (RFC 2003, STD 1) that decapsulate and route IP-in-IP traffic is vulnerable to spoofing, access-control bypass and other unexpected behavior due to the lack of validation to verify network packets before decapsulation and routing.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco NX-OS Software 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco NX-OS Software是美国思科（Cisco）公司的一套交换机使用的数据中心级操作系统软件。 Cisco NX-OS Software中存在代码问题漏洞，该漏洞源于程序解封并处理了IP数据包（发往本地配置的IP地址）中的IP。远程攻击者可借助IP数据包中特制的IP利用该漏洞绕过访问控制列表或造成拒绝服务。以下产品及版本受到影响：Nexus 1000 Virtual Edge for VMware vSphere；Nexus 1000V Switch for Microsoft Hyper
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
IETF RFC2003 - IP Encapsulation within IP STD 1 -

II. Public POCs for CVE-2020-10136

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III. Intelligence Information for CVE-2020-10136

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Vendor Advisories for CVE-2020-10136 (2)

Vendor Pages for CVE-2020-10136 (1)

Other References for CVE-2020-10136 (1)

IV. Related Vulnerabilities

Same vendor: IETF
Same weakness: CWE-290

V. Comments for CVE-2020-10136

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