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CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 3

CVE-2021-45338

https://notcve.org/view.php?id=CVE-2021-45338

Multiple privilege escalation vulnerabilities in Avast Antivirus prior to 20.4 allow a local user to gain elevated privileges by calling unnecessarily powerful internal methods of the main antivirus service which could lead to the (1) arbitrary file delete, (2) write and (3) reset security. Múltiples vulnerabilidades de escalada de privilegios en Avast Antivirus versiones anteriores a 20.4, permiten a un usuario local alcanzar privilegios elevados al llamar a métodos internos innecesariamente potentes del servicio antivirus principal, lo que podría conllevar el (1) borrado arbitrario de archivos, (2) escritura y (3) restablecimiento de la seguridad • https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.1 https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.2 https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.3 https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 •

CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 1

CVE-2021-45337

https://notcve.org/view.php?id=CVE-2021-45337

Privilege escalation vulnerability in the Self-Defense driver of Avast Antivirus prior to 20.8 allows a local user with SYSTEM privileges to gain elevated privileges by "hollowing" process wsc_proxy.exe which could lead to acquire antimalware (AM-PPL) protection. Una vulnerabilidad de escalada de privilegios en el controlador de Autodefensa de Avast Antivirus versiones anteriores a 20.8, permite a un usuario local con privilegios SYSTEM alcanzar privilegios elevados al "vaciar" el proceso wsc_proxy.exe, que podría conllevar a una adquisición de protección antimalware (AM-PPL) • https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5 https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 •

CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 1

CVE-2021-45336

https://notcve.org/view.php?id=CVE-2021-45336

Privilege escalation vulnerability in the Sandbox component of Avast Antivirus prior to 20.4 allows a local sandboxed code to gain elevated privileges by using system IPC interfaces which could lead to exit the sandbox and acquire SYSTEM privileges. Una vulnerabilidad de escalada de privilegios en el componente Sandbox de Avast Antivirus versiones anteriores a 20.4, permite a un código local del sandbox alcanzar privilegios elevados al usar las interfaces IPC del sistema, lo que podría conllevar a una salida del sandbox y la adquisición de privilegios de SYSTEM • https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5 https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 •

CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 1

CVE-2021-45335

https://notcve.org/view.php?id=CVE-2021-45335

Sandbox component in Avast Antivirus prior to 20.4 has an insecure permission which could be abused by local user to control the outcome of scans, and therefore evade detection or delete arbitrary system files. El componente Sandbox en Avast Antivirus versiones anteriores a 20.4, presenta un permiso no seguro que podría ser abusado por el usuario local para controlar el resultado de los escaneos, y por lo tanto omitir la detección o borrar archivos arbitrarios del sistema • https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5 https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 • CWE-276: Incorrect Default Permissions •

CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 1

CVE-2020-10868

https://notcve.org/view.php?id=CVE-2020-10868

An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to launch the Repair App RPC call from a Low Integrity process. Se detectó un problema en Avast Antivirus versiones anteriores a 20. El endpoint de aswTask RPC para la biblioteca TaskEx en el Avast Service (AvastSvc.exe) permite a atacantes iniciar la llamada Repair App RPC desde un proceso Low Integrity. • https://forum.avast.com/index.php?topic=232420.0 https://forum.avast.com/index.php?topic=232423.0 https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md •