cvelist/2024/7xxx/CVE-2024-7227.json

{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-7227",
        "ASSIGNER": "zdi-disclosures@trendmicro.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22272."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-59: Improper Link Resolution Before File Access ('Link Following')",
                        "cweId": "CWE-59"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Avast",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Free Antivirus",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "23.9.6082"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://www.zerodayinitiative.com/advisories/ZDI-24-1003/",
                "refsource": "MISC",
                "name": "https://www.zerodayinitiative.com/advisories/ZDI-24-1003/"
            }
        ]
    },
    "source": {
        "lang": "en",
        "value": "Nicholas Zubrisky and Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative"
    },
    "impact": {
        "cvss": [
            {
                "version": "3.0",
                "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "baseScore": 7.8,
                "baseSeverity": "HIGH"
            }
        ]
    }
}