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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://support.avira.com/hc/en-us/articles/360000109798-Avira-Antivirus-for-Windows	Release Notes Vendor Advisory
https://support.avira.com/hc/en-us/articles/360000109798-Avira-Antivirus-for-Windows	Release Notes Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:avira:free_antivirus:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:39

Type	Values Removed	Values Added
References	~~() https://support.avira.com/hc/en-us/articles/360000109798-Avira-Antivirus-for-Windows - Release Notes, Vendor Advisory~~	() https://support.avira.com/hc/en-us/articles/360000109798-Avira-Antivirus-for-Windows - Release Notes, Vendor Advisory

Information

Published : 2020-04-09 20:15

Updated : 2024-11-21 05:39

NVD link : CVE-2020-8961

Mitre link : CVE-2020-8961

CVE.ORG link : CVE-2020-8961

JSON object : View

Products Affected

avira

free_antivirus

CWE

NVD-CWE-noinfo

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