Vulnerabilites related to avast - free_antivirus
Vulnerability from fkie_nvd
Published
2020-06-29 18:15
Modified
2024-11-21 05:01
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files.
References
cve@mitre.orghttps://forum.avast.com/index.php?topic=232423.0Release Notes, Vendor Advisory
cve@mitre.orghttps://forum.avast.com/index.php?topic=234638.0Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://forum.avast.com/index.php?topic=232423.0Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://forum.avast.com/index.php?topic=234638.0Vendor Advisory
Impacted products
Vendor Product Version
avast avg_antivirus *
avast free_antivirus *


To clipboard 

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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de elevaci\u00f3n de privilegios en Avast Free Antivirus y AVG AntiVirus Free versiones anteriores a 20.4, debido a un manejo inapropiado de los enlaces f\u00edsicos. La vulnerabilidad permite a usuarios locales tomar el control de archivos arbitrarios"
    }
  ],
  "id": "CVE-2020-13657",
  "lastModified": "2024-11-21T05:01:41.830",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
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          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 2.1,
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          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
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        "impactScore": 2.9,
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          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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    ]
  },
  "published": "2020-06-29T18:15:11.643",
  "references": [
    {
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      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://forum.avast.com/index.php?topic=232423.0"
    },
    {
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    },
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      ],
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    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
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          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

Vulnerability from fkie_nvd
Published
2017-03-21 16:59
Modified
2025-04-20 01:37
Severity ?
6.7 (Medium) - CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
Code injection vulnerability in Avast Premier 12.3 (and earlier), Internet Security 12.3 (and earlier), Pro Antivirus 12.3 (and earlier), and Free Antivirus 12.3 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Avast process via a "DoubleAgent" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack.
References
cve@mitre.orghttp://cybellum.com/doubleagent-taking-full-control-antivirus/Third Party Advisory
cve@mitre.orghttp://cybellum.com/doubleagentzero-day-code-injection-and-persistence-technique/Technical Description, Third Party Advisory
cve@mitre.orghttp://www.securityfocus.com/bid/97017Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://cybellum.com/doubleagent-taking-full-control-antivirus/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://cybellum.com/doubleagentzero-day-code-injection-and-persistence-technique/Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/97017Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
avast free_antivirus *
avast internet_security *
avast premier *
avast pro_antivirus *


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
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      "value": "Code injection vulnerability in Avast Premier 12.3 (and earlier), Internet Security 12.3 (and earlier), Pro Antivirus 12.3 (and earlier), and Free Antivirus 12.3 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Avast process via a \"DoubleAgent\" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de inyecci\u00f3n de c\u00f3digo en Avast Premier 12.3 ( y versiones anteriores), Internet Security 12.3 (y versiones anteriores), Pro Antivirus 12.3 (y versiones anteriores) y Free Antivirus 12.3 ( y versiones anteriores) permite a atacante local evitar un mecanismo de autoprotecci\u00f3n, inyectar c\u00f3digo arbitrario, y tomar el control total de cualquier proceso Avast process a trav\u00e9s de un ataque \"DoubleAgent\". Una perspectiva de este problema es que (1) estos productos no utilizan la caracter\u00edstica de procesos protegidos y, por lo tanto, un atacante puede introducir un proveedor verificador de aplicaciones DLL arbitrario bajo opciones de ejecuci\u00f3n de archivo de imagen en el registro; (2) el mecanismo de autoprotecci\u00f3n est\u00e1 destinado a bloquear todos los procesos locales (independientemente de los privilegios) de modificar las opciones de ejecuci\u00f3n de archivos de imagen para estos productos; Y (3) este mecanismo puede ser anulado por un atacante que cambia temporalmente las opciones de ejecuci\u00f3n de archivo de imagen durante el ataque."
    }
  ],
  "id": "CVE-2017-5567",
  "lastModified": "2025-04-20T01:37:25.860",
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          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
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          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
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        },
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
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  "published": "2017-03-21T16:59:00.380",
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      "tags": [
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      "url": "http://cybellum.com/doubleagent-taking-full-control-antivirus/"
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}

Vulnerability from fkie_nvd
Published
2016-11-03 10:59
Modified
2025-04-12 10:46
Severity ?
5.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
Avast Internet Security v11.x.x, Pro Antivirus v11.x.x, Premier v11.x.x, Free Antivirus v11.x.x, Business Security v11.x.x, Endpoint Protection v8.x.x, Endpoint Protection Plus v8.x.x, Endpoint Protection Suite v8.x.x, Endpoint Protection Suite Plus v8.x.x, File Server Security v8.x.x, and Email Server Security v8.x.x allow attackers to bypass the DeepScreen feature via a DeviceIoControl call.
References
cve@mitre.orghttps://labs.nettitude.com/blog/escaping-avast-sandbox-using-single-ioctl-cve-2016-4025/Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://labs.nettitude.com/blog/escaping-avast-sandbox-using-single-ioctl-cve-2016-4025/Technical Description, Third Party Advisory
Impacted products
Vendor Product Version
avast business_security 11.1.2241
avast business_security 11.1.2245
avast business_security 11.1.2253
avast business_security 11.1.2260
avast business_security 11.1.2261
avast business_security 11.1.2262
avast free_antivirus 11.1.2241
avast free_antivirus 11.1.2245
avast free_antivirus 11.1.2253
avast free_antivirus 11.1.2260
avast free_antivirus 11.1.2261
avast free_antivirus 11.1.2262
avast internet_security 11.1.2241
avast internet_security 11.1.2245
avast internet_security 11.1.2253
avast internet_security 11.1.2260
avast internet_security 11.1.2261
avast internet_security 11.1.2262
avast premier 11.1.2241
avast premier 11.1.2245
avast premier 11.1.2253
avast premier 11.1.2260
avast premier 11.1.2261
avast premier 11.1.2262
avast pro_antivirus 11.1.2241
avast pro_antivirus 11.1.2245
avast pro_antivirus 11.1.2253
avast pro_antivirus 11.1.2260
avast pro_antivirus 11.1.2261
avast pro_antivirus 11.1.2262
avast email_server_security *
avast email_server_security 8.0.1606
avast endpoint_protection *
avast endpoint_protection 8.0.1606
avast endpoint_protection_plus 8.0.1606
avast endpoint_protection_plus 8.0.1609
avast endpoint_protection_suite *
avast endpoint_protection_suite 8.0.1606
avast endpoint_protection_suite_plus *
avast endpoint_protection_suite_plus 8.0.1606
avast file_server_security *
avast file_server_security 8.0.1606


To clipboard 

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Vulnerability from fkie_nvd
Published
2024-11-22 22:15
Modified
2024-12-09 20:08
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Avast Free Antivirus Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition 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. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-22806.
References
zdi-disclosures@trendmicro.comhttps://www.zerodayinitiative.com/advisories/ZDI-24-999/Third Party Advisory
Impacted products
Vendor Product Version
avast free_antivirus 23.11.6090


To clipboard 

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Vulnerability from fkie_nvd
Published
2024-11-22 22:15
Modified
2024-12-11 14:44
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22963.
References
zdi-disclosures@trendmicro.comhttps://www.zerodayinitiative.com/advisories/ZDI-24-1004/Third Party Advisory
Impacted products
Vendor Product Version
avast free_antivirus 23.12.6094


To clipboard 

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Vulnerability from fkie_nvd
Published
2024-11-22 22:15
Modified
2025-01-08 14:29
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-23731.
References
zdi-disclosures@trendmicro.comhttps://www.zerodayinitiative.com/advisories/ZDI-24-1005/Third Party Advisory
Impacted products
Vendor Product Version
avast free_antivirus 24.2.6105


To clipboard 

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Vulnerability from fkie_nvd
Published
2019-03-21 16:00
Modified
2024-11-21 03:45
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Avast Free Antivirus prior to 19.1.2360 stores user credentials in memory upon login, which allows local users to obtain sensitive information by dumping AvastUI.exe application memory and parsing the data.
References
cve@mitre.orghttp://packetstormsecurity.com/files/151590/Avast-Anti-Virus-Local-Credential-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/151590/Avast-Anti-Virus-Local-Credential-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
avast free_antivirus *


To clipboard 

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Vulnerability from fkie_nvd
Published
2024-11-22 22:15
Modified
2024-12-09 20:09
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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. The 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.
References
zdi-disclosures@trendmicro.comhttps://www.zerodayinitiative.com/advisories/ZDI-24-1003/Third Party Advisory
Impacted products
Vendor Product Version
avast free_antivirus 23.9.6082


To clipboard 

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CVE-2018-12572 (GCVE-0-2018-12572)
Vulnerability from cvelistv5
Published
2019-03-17 18:20
Modified
2024-08-05 08:38
Severity ?
CWE
  • n/a
Summary
Avast Free Antivirus prior to 19.1.2360 stores user credentials in memory upon login, which allows local users to obtain sensitive information by dumping AvastUI.exe application memory and parsing the data.
References
http://packetstormsecurity.com/files/151590/Avast-Anti-Virus-Local-Credential-Disclosure.htmlx_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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CVE-2024-7228 (GCVE-0-2024-7228)
Vulnerability from cvelistv5
Published
2024-11-22 21:11
Modified
2024-11-23 01:26
Severity ?
6.1 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
Avast Free Antivirus Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition 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. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-22806.
References
https://www.zerodayinitiative.com/advisories/ZDI-24-999/x_research-advisory
Impacted products
Vendor Product Version
Avast Free Antivirus Version: 23.11.6090 Build 23.11.8365.809
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2017-5567 (GCVE-0-2017-5567)
Vulnerability from cvelistv5
Published
2017-03-21 16:00
Modified
2024-08-05 15:04
Severity ?
CWE
  • n/a
Summary
Code injection vulnerability in Avast Premier 12.3 (and earlier), Internet Security 12.3 (and earlier), Pro Antivirus 12.3 (and earlier), and Free Antivirus 12.3 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Avast process via a "DoubleAgent" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack.
References
http://cybellum.com/doubleagent-taking-full-control-antivirus/x_refsource_MISC
http://www.securityfocus.com/bid/97017vdb-entry, x_refsource_BID
http://cybellum.com/doubleagentzero-day-code-injection-and-persistence-technique/x_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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              "value": "Code injection vulnerability in Avast Premier 12.3 (and earlier), Internet Security 12.3 (and earlier), Pro Antivirus 12.3 (and earlier), and Free Antivirus 12.3 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Avast process via a \"DoubleAgent\" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack."
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              "url": "http://cybellum.com/doubleagent-taking-full-control-antivirus/"
            },
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CVE-2024-7232 (GCVE-0-2024-7232)
Vulnerability from cvelistv5
Published
2024-11-22 21:11
Modified
2024-11-25 16:56
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
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. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22963.
References
https://www.zerodayinitiative.com/advisories/ZDI-24-1004/x_research-advisory
Impacted products
Vendor Product Version
Avast Free Antivirus Version: 23.12.6094 (build 23.12.8700.813)
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2020-13657 (GCVE-0-2020-13657)
Vulnerability from cvelistv5
Published
2020-06-29 17:51
Modified
2024-08-04 12:25
Severity ?
CWE
  • n/a
Summary
An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files.
References
https://forum.avast.com/index.php?topic=234638.0x_refsource_CONFIRM
https://forum.avast.com/index.php?topic=232423.0x_refsource_CONFIRM
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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CVE-2016-4025 (GCVE-0-2016-4025)
Vulnerability from cvelistv5
Published
2016-11-03 10:00
Modified
2024-08-06 00:17
Severity ?
CWE
  • n/a
Summary
Avast Internet Security v11.x.x, Pro Antivirus v11.x.x, Premier v11.x.x, Free Antivirus v11.x.x, Business Security v11.x.x, Endpoint Protection v8.x.x, Endpoint Protection Plus v8.x.x, Endpoint Protection Suite v8.x.x, Endpoint Protection Suite Plus v8.x.x, File Server Security v8.x.x, and Email Server Security v8.x.x allow attackers to bypass the DeepScreen feature via a DeviceIoControl call.
References
https://labs.nettitude.com/blog/escaping-avast-sandbox-using-single-ioctl-cve-2016-4025/x_refsource_MISC
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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CVE-2024-7233 (GCVE-0-2024-7233)
Vulnerability from cvelistv5
Published
2024-11-22 21:11
Modified
2024-11-25 16:54
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
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. The specific flaw exists within the Avast Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-23731.
References
https://www.zerodayinitiative.com/advisories/ZDI-24-1005/x_research-advisory
Impacted products
Vendor Product Version
Avast Free Antivirus Version: 24.2.6105 (build 24.2.8918.827)
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2024-7227 (GCVE-0-2024-7227)
Vulnerability from cvelistv5
Published
2024-11-22 21:11
Modified
2024-11-25 16:55
Severity ?
7.8 (High) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Summary
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. The 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.
References
https://www.zerodayinitiative.com/advisories/ZDI-24-1003/x_research-advisory
Impacted products
Vendor Product Version
Avast Free Antivirus Version: 23.9.6082
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                  },
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          "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."
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