CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-8961
https://notcve.org/view.php?id=CVE-2020-8961
An issue was discovered in Avira Free-Antivirus before 15.0.2004.1825. The Self-Protection feature does not prohibit a write operation from an external process. Thus, code injection can be used to turn off this feature. After that, one can construct an event that will modify a file at a specific location, and pass this event to the driver, thereby defeating the anti-virus functionality. Se detectó un problema en Avira Free-Antivirus versiones anteriores a 15.0.2004.1825. • https://support.avira.com/hc/en-us/articles/360000109798-Avira-Antivirus-for-Windows •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2020-9320
https://notcve.org/view.php?id=CVE-2020-9320
Avira AV Engine before 8.3.54.138 allows virus-detection bypass via a crafted ISO archive. This affects versions before 8.3.54.138 of Antivirus for Endpoint, Antivirus for Small Business, Exchange Security (Gateway), Internet Security Suite for Windows, Prime, Free Security Suite for Windows, and Cross Platform Anti-malware SDK. NOTE: Vendor asserts that vulnerability does not exist in product ** EN DISPUTA ** Avira AV Engine versiones anteriores a 8.3.54.138, permite omitir la detección de virus por medio de un archivo ISO diseñado. Esto afecta a las versiones anteriores a 8.3.54.138 de Antivirus para Endpoint, Antivirus para Small Business, Exchange Security (Gateway), Internet Security Suite para Windows, Prime, Free Security Suite para Windows y Cross Platparam Anti-malware SDK. NOTA: El vendedor afirma que la vulnerabilidad no existe en el producto • http://packetstormsecurity.com/files/156472/AVIRA-Generic-Malformed-Container-Bypass.html http://seclists.org/fulldisclosure/2020/Feb/31 https://blog.zoller.lu/p/from-low-hanging-fruit-department-avira.html https://www.zoller.lu/%5BTZO-01-2020%5D%20AVIRA%20Generic%20Bypass%20ISO.pdf • CWE-434: Unrestricted Upload of File with Dangerous Type •
CVSS: 8.8EPSS: 0%CPEs: 2EXPL: 0CVE-2019-18568 – Avira Free Antivirus is proned to a local privilege escalation through the execution of kernel code from a restricted user.
https://notcve.org/view.php?id=CVE-2019-18568
Avira Free Antivirus 15.0.1907.1514 is prone to a local privilege escalation through the execution of kernel code from a restricted user. Avira Free Antivirus versión 15.0.1907.1514, es propenso a una escalada de privilegios locales por medio de una ejecución de código del kernel desde un usuario restringido. • https://support.avira.com/hc/en-us/articles/360000109798-Avira-Antivirus-for-Windows • CWE-680: Integer Overflow to Buffer Overflow •
CVSS: 6.7EPSS: 0%CPEs: 1EXPL: 0CVE-2019-17449
https://notcve.org/view.php?id=CVE-2019-17449
Avira Software Updater before 2.0.6.21094 allows a DLL side-loading attack. NOTE: The vendor thinks that this vulnerability is invalid because exploiting it would require at least administrator privileges and would gain only SYSTEM privileges ** EN DISPUTA ** Avira Software Updater versiones anteriores a 2.0.6.21094, permite un ataque de carga lateral de DLL. NOTA: El proveedor piensa que esta vulnerabilidad no es válida porque explotarla requeriría al menos privilegios de administrador y solo obtendría privilegios del SISTEMA. • https://safebreach.com/Post/Avira-Antivirus-2019-4-Services-DLL-Preloading-and-Potential-Abuses-CVE-2019-17449 https://support.avira.com/hc/en-us/articles/360000142857-Avira-Software-Updater • CWE-426: Untrusted Search Path •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2019-11396
https://notcve.org/view.php?id=CVE-2019-11396
An issue was discovered in Avira Free Security Suite 10. The permissive access rights on the SoftwareUpdater folder (files / folders and configuration) are incompatible with the privileged file manipulation performed by the product. Files can be created that can be used by an unprivileged user to obtain SYSTEM privileges. Arbitrary file creation can be achieved by abusing the SwuConfig.json file creation: an unprivileged user can replace these files by pseudo-symbolic links to arbitrary files. When an update occurs, a privileged service creates a file and sets its access rights, offering write access to the Everyone group in any directory. • http://packetstormsecurity.com/files/153868/Avira-Free-Security-Suite-2019-Software-Updater-2.0.6.13175-Improper-Access-Control.html https://medium.com/sidechannel-br/vulnerabilidade-no-avira-security-suite-pode-levar-%C3%A0-escala%C3%A7%C3%A3o-de-privil%C3%A9gios-no-windows-71964236c077 https://seclists.org/fulldisclosure/2019/Aug/1 • CWE-59: Improper Link Resolution Before File Access ('Link Following') •