{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-36367",
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "dateUpdated": "2024-08-04T00:54:51.472Z",
        "dateReserved": "2021-07-09T00:00:00.000Z",
        "datePublished": "2021-07-09T00:00:00.000Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
                "shortName": "mitre",
                "dateUpdated": "2024-04-25T22:05:53.574Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it easier for an attacker-controlled SSH server to present a later spoofed authentication prompt (that the attacker can use to capture credential data, and use that data for purposes that are undesired by the client user)."
                }
            ],
            "affected": [
                {
                    "vendor": "n/a",
                    "product": "n/a",
                    "versions": [
                        {
                            "version": "n/a",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html"
                },
                {
                    "url": "https://git.tartarus.org/?p=simon/putty.git%3Ba=commit%3Bh=1dc5659aa62848f0aeb5de7bd3839fecc7debefa"
                },
                {
                    "name": "DSA-5588",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://www.debian.org/security/2023/dsa-5588"
                },
                {
                    "name": "[debian-lts-announce] 20240425 [SECURITY] [DLA 3794-1] putty security update",
                    "tags": [
                        "mailing-list"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "text",
                            "lang": "en",
                            "description": "n/a"
                        }
                    ]
                }
            ]
        },
        "adp": [
            {
                "title": "CISA ADP Vulnrichment",
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 8.1,
                            "attackVector": "NETWORK",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
                            "integrityImpact": "HIGH",
                            "userInteraction": "REQUIRED",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "NONE",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2021-36367",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-02-22T20:07:50.029818Z"
                            }
                        }
                    }
                ],
                "affected": [
                    {
                        "cpes": [
                            "cpe:2.3:a:putty:putty:-:*:*:*:*:*:*:*"
                        ],
                        "vendor": "putty",
                        "product": "putty",
                        "versions": [
                            {
                                "status": "affected",
                                "version": "-",
                                "versionType": "custom",
                                "lessThanOrEqual": "0.75"
                            }
                        ],
                        "defaultStatus": "unknown"
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-345",
                                "description": "CWE-345 Insufficient Verification of Data Authenticity"
                            }
                        ]
                    }
                ],
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-06-04T17:13:16.563Z"
                }
            },
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T00:54:51.472Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.tartarus.org/?p=simon/putty.git%3Ba=commit%3Bh=1dc5659aa62848f0aeb5de7bd3839fecc7debefa",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "name": "DSA-5588",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://www.debian.org/security/2023/dsa-5588"
                    },
                    {
                        "name": "[debian-lts-announce] 20240425 [SECURITY] [DLA 3794-1] putty security update",
                        "tags": [
                            "mailing-list",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html"
                    }
                ]
            }
        ]
    }
}