{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-1236",
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "assignerShortName": "cisco",
        "dateUpdated": "2024-11-12T20:48:23.581Z",
        "dateReserved": "2020-11-13T00:00:00.000Z",
        "datePublished": "2021-01-13T21:17:03.406Z"
    },
    "containers": {
        "cna": {
            "title": "Multiple Cisco Products Snort Application Detection Engine Policy Bypass Vulnerability",
            "datePublic": "2021-01-13T00:00:00.000Z",
            "providerMetadata": {
                "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
                "shortName": "cisco",
                "dateUpdated": "2023-02-19T00:00:00.000Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Multiple Cisco products are affected by a vulnerability in the Snort application detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. The vulnerability is due to a flaw in the detection algorithm. An attacker could exploit this vulnerability by sending crafted packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network."
                }
            ],
            "affected": [
                {
                    "vendor": "Cisco",
                    "product": "Cisco Firepower Threat Defense Software",
                    "versions": [
                        {
                            "version": "n/a",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "name": "20210113 Multiple Cisco Products Snort Application Detection Engine Policy Bypass Vulnerability",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-app-bypass-cSBYCATq"
                },
                {
                    "name": "[debian-lts-announce] 20230210 [SECURITY] [DLA 3317-1] snort security update",
                    "tags": [
                        "mailing-list"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html"
                },
                {
                    "name": "DSA-5354",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://www.debian.org/security/2023/dsa-5354"
                }
            ],
            "metrics": [
                {
                    "cvssV3_0": {
                        "version": "3.0",
                        "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N",
                        "attackVector": "NETWORK",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "availabilityImpact": "NONE",
                        "baseScore": 4,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-670",
                            "cweId": "CWE-670"
                        }
                    ]
                }
            ],
            "source": {
                "advisory": "cisco-sa-snort-app-bypass-cSBYCATq",
                "defect": [
                    [
                        "CSCvs85467",
                        "CSCvu21318"
                    ]
                ],
                "discovery": "INTERNAL"
            },
            "exploits": [
                {
                    "lang": "en",
                    "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-03T16:02:56.434Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "name": "20210113 Multiple Cisco Products Snort Application Detection Engine Policy Bypass Vulnerability",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-app-bypass-cSBYCATq"
                    },
                    {
                        "name": "[debian-lts-announce] 20230210 [SECURITY] [DLA 3317-1] snort security update",
                        "tags": [
                            "mailing-list",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html"
                    },
                    {
                        "name": "DSA-5354",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://www.debian.org/security/2023/dsa-5354"
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2024-11-08T20:55:08.338945Z",
                                "id": "CVE-2021-1236",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-11-12T20:48:23.581Z"
                }
            }
        ]
    }
}