CVE-2021-45338

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-45338
Multiple privilege escalation vulnerabilities in Avast Antivirus prior to 20.4 allow a local user to gain elevated privileges by calling unnecessarily powerful internal methods of the main antivirus service which could lead to the (1) arbitrary file delete, (2) write and (3) reset security.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2 /10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References
Link Resource
https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.1 Exploit Third Party Advisory
https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.2 Exploit Third Party Advisory
https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.3 Exploit Third Party Advisory
https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 Vendor Advisory
https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.1 Exploit Third Party Advisory
https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.2 Exploit Third Party Advisory
https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.3 Exploit Third Party Advisory
https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:*
History

21 Nov 2024, 06:32

Type Values Removed Values Added
References () https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.1 - Exploit, Third Party Advisory () https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.1 - Exploit, Third Party Advisory
References () https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.2 - Exploit, Third Party Advisory () https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.2 - Exploit, Third Party Advisory
References () https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.3 - Exploit, Third Party Advisory () https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.3 - Exploit, Third Party Advisory
References () https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 - Vendor Advisory () https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0 - Vendor Advisory
Information

Published : 2021-12-27 14:15

Updated : 2024-11-21 06:32

NVD link : CVE-2021-45338

Mitre link : CVE-2021-45338

CVE.ORG link : CVE-2021-45338

JSON object : View

Products Affected

avast

  • antivirus
CWE
NVD-CWE-Other