Plugins Database As of 11-21-2019

AVG Antivirus (All Editions) < 19.8 DLL Preloading Vulnerability (Windows)

General
Impact by CVSS Score
  • ID: 1.3.6.1.4.1.25623.1.0.107738

CVSS Base Vector:
AV:N/AC:M/Au:S/C:N/I:N/A:P

Detection Type:
Windows Registry

Solution Type:
Vendor Patch

Summary:
This host is running AVG Antivirus and is prone to a dll preloading vulnerability.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
The vulnerability gives attackers the ability to: - load and execute malicious payloads using multiple signed services, within the context of Avast signed processes - bypass the part of the self-defense mechanism that should prevent an attacker from tampering with processes and files of Avast Antivirus and load an arbitrary DLL into the Antivirus process - load and execute malicious payloads in a persistent way, each time the services are loaded.

Impact:
The vulnerability can be used to achieve self-defense bypass, defense evasion, persistence and privilege escalation.

Affected Versions:
All Editions of AVG Antivirus before version 19.8.

Recommendations:
Update to AVG Antivirus version 19.8 or later.

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Severity
Low
CVSS Score
3.5
Published
2019-11-01 13:51:54
Modified
2019-11-01 13:58:25
CVE
CVE-2019-17093

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