{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-13961",
        "ASSIGNER": "security@nortonlifelock.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Link Following Local Privilege Escalation Vulnerability in TuneupSvc in Avast Cleanup Premium Version 24.2.16593.17810 on Windows 10 Pro x64 allows local attackers to escalate privileges and execute arbitrary code in the context of SYSTEM via creating a symbolic link and leveraging a TOCTTOU (time-of-check to time-of-use) attack."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-59 Improper Link Resolution Before File Access ('Link Following')",
                        "cweId": "CWE-59"
                    }
                ]
            },
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition",
                        "cweId": "CWE-367"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Avast",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "CleanUp Premium",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "status": "affected",
                                                        "version": "24.2.16593.17810"
                                                    },
                                                    {
                                                        "status": "unaffected",
                                                        "version": "24.3.17165.19178"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://www.gendigital.com/us/en/contact-us/security-advisories/",
                "refsource": "MISC",
                "name": "https://www.gendigital.com/us/en/contact-us/security-advisories/"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.2.0"
    },
    "source": {
        "discovery": "UNKNOWN"
    },
    "solution": [
        {
            "lang": "en",
            "supportingMedia": [
                {
                    "base64": false,
                    "type": "text/html",
                    "value": "<span style=\"background-color: rgb(255, 255, 255);\">Update to Avast Cleanup Premium 24.3.17165.19178 or newer</span><br>"
                }
            ],
            "value": "Update to Avast Cleanup Premium 24.3.17165.19178 or newer"
        }
    ],
    "credits": [
        {
            "lang": "en",
            "value": "Vladislav Berghici of Trend Micro Research"
        },
        {
            "lang": "en",
            "value": "Zero Day Initiative"
        }
    ],
    "impact": {
        "cvss": [
            {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
            }
        ]
    }
}