CVE-2020-12463
https://notcve.org/view.php?id=CVE-2020-12463
An elevation of privilege vulnerability exists in Avira Software Updater before 2.0.6.27476 due to improperly handling file hard links. This allows local users to obtain take control of arbitrary files. Se presenta una vulnerabilidad de elevación de privilegios en Avira Software Updater versiones anteriores a 2.0.6.27476, debido a un manejo inapropiado de los enlaces físicos de archivos. Esto permite a usuarios locales tomar el control de archivos arbitrarios. • https://support.avira.com/hc/en-us/articles/360000142857-Avira-Software-Updater •
CVE-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 •
CVE-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') •