CVE-2022-3368
Published: 17 October 2022
Summary
CVE-2022-3368 is a high-severity Incorrect Default Permissions (CWE-276) vulnerability in Avira Avira Security. Its CVSS base score is 7.3 (High).
Operationally, ranked in the top 12.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A vulnerability in the Software Updater functionality of Avira Security for Windows permitted local privilege escalation when an attacker already possessed write access to the filesystem. The flaw, tracked as CVE-2022-3368 and assigned a CVSS 7.3 rating, was addressed in Avira Security version 1.1.72.30556.
An attacker with local filesystem write access and limited privileges could exploit the updater component to achieve full control over confidentiality, integrity, and availability on the affected system. Exploitation requires user interaction and occurs in a local attack vector without elevated privileges at the outset.
The vendor resolved the issue by releasing the fixed version noted above. Public advisories hosted by Norton, which now encompasses Avira, reference the same remediation details for affected Windows installations.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-42748
Vulnerability details
A vulnerability within the Software Updater functionality of Avira Security for Windows allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avira Security version 1.1.72.30556.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Access control policy can specify and enforce secure default permissions for resources.
Guides setting of default permissions to the minimum required level.
Establishes requirements for appropriate default permissions on system resources as part of configuration management.
Baseline establishment and updates on install/upgrade ensure correct default permissions rather than insecure ones.
Requiring the most restrictive settings instead of defaults prevents incorrect default permissions on resources.
Requires documented processes that include setting and maintaining correct default permissions for configuration items.
Requires addressing secure default permissions in physical and environmental protection controls.
Tailoring explicitly overrides or scopes default permission assignments in the baseline to match the system's actual risk and operational needs.