2024-07-14 02:06:08 +00:00

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{
"id": "CVE-2024-5102",
"sourceIdentifier": "security@nortonlifelock.com",
"published": "2024-06-10T17:16:34.133",
"lastModified": "2024-06-12T18:12:01.453",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\\SYSTEM.\u00a0The vulnerability exists within the \"Repair\" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\\SYSTEM. A\u00a0low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance.\n\nThis issue affects Avast Antivirus prior to 24.2."
},
{
"lang": "es",
"value": "Un archivo con enlace simb\u00f3lico al que se accede a trav\u00e9s de la funci\u00f3n de reparaci\u00f3n en Avast Antivirus &lt;24.2 en Windows puede permitir al usuario elevar privilegios para eliminar archivos arbitrarios o ejecutar procesos como NT AUTHORITY\\SYSTEM. La vulnerabilidad existe dentro de la funci\u00f3n \"Reparaci\u00f3n\" (configuraci\u00f3n -&gt; soluci\u00f3n de problemas -&gt; reparaci\u00f3n), que intenta eliminar un archivo en el directorio AppData del usuario actual como NT AUTHORITY\\SYSTEM. Un usuario con pocos privilegios puede crear un pseudoenlace simb\u00f3lico y una carpeta de uni\u00f3n y apuntar a un archivo en el sistema. Esto puede proporcionar a un usuario con pocos privilegios una elevaci\u00f3n de permisos para ganar una condici\u00f3n de ejecuci\u00f3n que recrear\u00e1 los archivos del sistema y realizar\u00e1 una devoluci\u00f3n de llamada de Windows a un archivo especialmente manipulado que podr\u00eda usarse para iniciar una instancia de shell privilegiada. Este problema afecta a Avast Antivirus antes de la versi\u00f3n 24.2."
}
],
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"source": "security@nortonlifelock.com",
"type": "Secondary",
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"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"privilegesRequired": "LOW",
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"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirements": "NOT_DEFINED",
"integrityRequirements": "NOT_DEFINED",
"availabilityRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnerableSystemConfidentiality": "NOT_DEFINED",
"modifiedVulnerableSystemIntegrity": "NOT_DEFINED",
"modifiedVulnerableSystemAvailability": "NOT_DEFINED",
"modifiedSubsequentSystemConfidentiality": "NOT_DEFINED",
"modifiedSubsequentSystemIntegrity": "NOT_DEFINED",
"modifiedSubsequentSystemAvailability": "NOT_DEFINED",
"safety": "NOT_DEFINED",
"automatable": "NOT_DEFINED",
"recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"baseScore": 7.3,
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}
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"type": "Primary",
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"source": "security@nortonlifelock.com",
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"source": "security@nortonlifelock.com",
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