CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 0CVE-2021-27241 – Avast Premium Security AvastSvc Directory Junction Denial-of-Service Vulnerability
https://notcve.org/view.php?id=CVE-2021-27241
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. • https://www.zerodayinitiative.com/advisories/ZDI-21-208 • CWE-59: Improper Link Resolution Before File Access ('Link Following') •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 1CVE-2020-25289
https://notcve.org/view.php?id=CVE-2020-25289
The VPN service in AVAST SecureLine before 5.6.4982.470 allows local users to write to arbitrary files via an Object Manager symbolic link from the log directory (which has weak permissions). El servicio VPN en AVAST SecureLine versiones anteriores a 5.6.4982.470, permite a usuarios locales escribir en archivos arbitrarios por medio de un enlace simbólico de Object Manager del directorio de registro (que presenta permisos débiles) • http://zeifan.my/security/arbitrary%20file/eop/2020/07/21/avast-secureline-vpn-arb-file-eop.html • CWE-59: Improper Link Resolution Before File Access ('Link Following') •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-15024
https://notcve.org/view.php?id=CVE-2020-15024
An issue was discovered in the Login Password feature of the Password Manager component in Avast Antivirus 20.1.5069.562. An entered password continues to be stored in Windows main memory after a logout, and after a Lock Vault operation. Se detectó un problema en la funcionalidad Login Password del componente Password Manager en Avast Antivirus versión 20.1.5069.562. La contraseña ingresada sigue siendo almacenada en la memoria principal de Windows después de cerrar la sesión y después de una operación de Lock Vault • http://nestedif.com/avast-antivirus-password-manager-vulnerability-improper-session-handling-leading-to-information-disclosure-advisory • CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer CWE-459: Incomplete Cleanup •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2020-13657
https://notcve.org/view.php?id=CVE-2020-13657
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. Se presenta una vulnerabilidad de elevación de privilegios en Avast Free Antivirus y AVG AntiVirus Free versiones anteriores a 20.4, debido a un manejo inapropiado de los enlaces físicos. La vulnerabilidad permite a usuarios locales tomar el control de archivos arbitrarios • https://forum.avast.com/index.php?topic=232423.0 https://forum.avast.com/index.php?topic=234638.0 •
CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 1CVE-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 •