{
    "containers": {
        "cna": {
            "title": "IP-in-IP protocol allows a remote, unauthenticated attacker to route arbitrary network traffic",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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."
                }
            ],
            "affected": [
                {
                    "vendor": "IETF",
                    "product": "RFC2003 - IP Encapsulation within IP",
                    "versions": [
                        {
                            "version": "STD 1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://kb.cert.org/vuls/id/636397/",
                    "name": "VU#636397"
                },
                {
                    "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ipip-dos-kCT9X4"
                },
                {
                    "url": "https://www.digi.com/resources/security"
                },
                {
                    "url": "https://www.kb.cert.org/vuls/id/636397",
                    "name": "VU#636397"
                },
                {
                    "url": "https://datatracker.ietf.org/doc/html/rfc6169",
                    "name": "Security Concerns with IP Tunneling"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Thanks to Yannay Livneh for reporting this issue."
                }
            ],
            "datePublic": "2020-06-01T00:00:00",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-290",
                            "description": "CWE-290 Authentication Bypass by Spoofing",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Customers should apply the latest patch provided by the affected vendor that addresses this issue and prevents unspecified IP-in-IP packets from being processed. Devices manufacturers are urged to disable IP-in-IP in their default configuration and require their customers to explicitly configure IP-in-IP as and when needed."
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "workarounds": [
                {
                    "lang": "en",
                    "value": "Users can block IP-in-IP packets by filtering IP protocol number 4. Note this filtering is for the IPv4 Protocol (or IPv6 Next Header) field value of 4 and not IP protocol version 4 (IPv4)."
                }
            ],
            "providerMetadata": {
                "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
                "shortName": "certcc",
                "dateUpdated": "2024-06-17T21:10:04.191Z"
            },
            "x_generator": {
                "engine": "cveClient/1.0.15"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T10:50:57.823Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://kb.cert.org/vuls/id/636397/",
                        "name": "VU#636397",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ipip-dos-kCT9X4",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.digi.com/resources/security",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://www.kb.cert.org/vuls/id/636397",
                        "name": "VU#636397",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://datatracker.ietf.org/doc/html/rfc6169",
                        "name": "Security Concerns with IP Tunneling",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            }
        ]
    },
    "cveMetadata": {
        "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "assignerShortName": "certcc",
        "cveId": "CVE-2020-10136",
        "datePublished": "2020-06-02T08:35:12.921954Z",
        "dateReserved": "2020-03-05T00:00:00",
        "dateUpdated": "2024-09-17T00:56:11.850Z",
        "state": "PUBLISHED"
    },
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1"
}