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CVE-2021-45335

Published: Dec 27, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-276
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.4%
Top 70.6%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

Sandbox component in Avast Antivirus prior to 20.4 has an insecure permission which could be abused by local user to control the outcome of scans, and therefore evade detection or delete arbitrary system files.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:CC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-276

Affected Products

Avast AntivirusAvast Software sro
On-prem
Security Products / endpoint-av-edr
n/an/a
antivirusavast
Security Product
Security Products / endpoint-av-edr
avast software srocommercialCZSecurity Productsaka avast antivirus, avast premium security, avast business antivirus for linux
avastcommercialCZSecurity Productsaka avast antivirus, avast free antivirus

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://www.avast.com/hacker-hall-of-fame/en/researcher-david-eade-reports-antitrack-bug-to-avast-0
avast.com
https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5
github.com

Timeline

Published
Dec 27, 2021
Last Updated
Nov 21, 2024

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