Description

Avira Internet Security contains an improper link resolution vulnerability in the Software Updater component. During the update process, a privileged service running as SYSTEM deletes a file under C:\\ProgramData without validating whether the path resolves through a symbolic link or reparse point. A local attacker can create a malicious link to redirect the delete operation to an arbitrary file, resulting in deletion of attacker-chosen files with SYSTEM privileges. This may lead to local privilege escalation, denial of service, or system integrity compromise depending on the targeted file and operating system configuration.

Weaknesses 1

Affected Products 1

References 3

• support.avira.com https://support.avira.com/hc/en-us/articles/360010656158-Current-Avira-versions
  Release Notes
• avira.com https://www.avira.com/en/internet-security
  Product
• gendigital.com https://www.gendigital.com/us/en/contact-us/security-advisories/

Remediation