CVE-2019-17093

An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL Preloading vulnerability allows an attacker to implant %WINDIR%\system32\wbemcomn.dll, which is loaded into a protected-light process (PPL) and might bypass some of the self-defense mechanisms. This affects all components that use WMI, e.g., AVGSvc.exe 19.6.4546.0 and TuneupSmartScan.dll 19.1.884.0.

CVSS v3 7.8 HIGH
CVSS v2.0 4.4 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.4^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.4 / Impact : 6.4

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses	Exploit Technical Description Third Party Advisory
https://safebreach.com/blog	Third Party Advisory
https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses	Exploit Technical Description Third Party Advisory
https://safebreach.com/blog	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:avast:antivirus::::::::
	cpe:2.3:a:avg:anti-virus::::::::

History

No history.

Information

Published : 2019-10-23 17:15

Updated : 2024-11-21 04:31

NVD link : CVE-2019-17093

Mitre link : CVE-2019-17093

CVE.ORG link : CVE-2019-17093

JSON object : View

Products Affected

avast

antivirus

avg

anti-virus

CWE

CWE-427

Uncontrolled Search Path Element

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