FKIE_CVE-2021-27241

Vulnerability from fkie_nvd - Published: 2021-03-29 21:15 - Updated: 2024-11-21 05:57
Severity ?
6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Summary
This vulnerability allows local attackers to delete arbitrary directories on affected installations of Avast Premium Security 20.8.2429 (Build 20.8.5653.561). An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the AvastSvc.exe module. By creating a directory junction, an attacker can abuse the service to delete a directory. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-12082.
References
zdi-disclosures@trendmicro.comhttps://www.zerodayinitiative.com/advisories/ZDI-21-208/Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://www.zerodayinitiative.com/advisories/ZDI-21-208/Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
avast premium_security 20.8.2429
To clipboard 

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              "criteria": "cpe:2.3:a:avast:premium_security:20.8.2429:*:*:*:*:*:*:*",
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  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "This vulnerability allows local attackers to delete arbitrary directories on affected installations of Avast Premium Security 20.8.2429 (Build 20.8.5653.561). An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the AvastSvc.exe module. By creating a directory junction, an attacker can abuse the service to delete a directory. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-12082."
    },
    {
      "lang": "es",
      "value": "Esta vulnerabilidad permite a atacantes locales eliminar directorios arbitrarios en las instalaciones afectadas de Avast Premium Security versi\u00f3n 20.8.2429 (Build 20.8.5653.561).\u0026#xa0;Un atacante primero debe obtener la capacidad de ejecutar c\u00f3digo poco privilegiado en el sistema de destino para explotar esta vulnerabilidad.\u0026#xa0;El fallo espec\u00edfico se presenta dentro del m\u00f3dulo AvastSvc.exe.\u0026#xa0;Al crear una uni\u00f3n de directorio, un atacante puede abusar del servicio para eliminar un directorio.\u0026#xa0;Un atacante puede aprovechar esta vulnerabilidad para crear una condici\u00f3n de denegaci\u00f3n de servicio en el sistema.\u0026#xa0;Era ZDI-CAN-12082"
    }
  ],
  "id": "CVE-2021-27241",
  "lastModified": "2024-11-21T05:57:40.110",
  "metrics": {
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  "published": "2021-03-29T21:15:12.593",
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      "tags": [
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  "vulnStatus": "Modified",
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          "value": "CWE-59"
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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