Avast Antivirus up to 20.3 Trusted Process access control
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.0 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Avast Antivirus up to 20.3. It has been declared as critical. Impacted is an unknown function of the component Trusted Process Handler. Executing a manipulation can lead to access control. This vulnerability is registered as CVE-2021-45339. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.
Details
A vulnerability classified as critical was found in Avast Antivirus up to 20.3 (Anti-Malware Software). This vulnerability affects some unknown processing of the component Trusted Process Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was published 12/27/2021. The advisory is available at github.com. This vulnerability was named CVE-2021-45339 since 12/20/2021. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
Upgrading to version 20.4 eliminates this vulnerability.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Access controlCWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Antivirus 20.4
Timeline
12/20/2021 🔍12/27/2021 🔍
12/27/2021 🔍
12/31/2021 🔍
Sources
Advisory: github.comStatus: Confirmed
CVE: CVE-2021-45339 (🔍)
GCVE (CVE): GCVE-0-2021-45339
GCVE (VulDB): GCVE-100-189370
Entry
Created: 12/27/2021 17:03Updated: 12/31/2021 08:43
Changes: 12/27/2021 17:03 (40), 12/31/2021 08:43 (1)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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