CVE-2019-11644

In the F-Secure installer in F-Secure SAFE for Windows before 17.6, F-Secure Internet Security before 17.6, F-Secure Anti-Virus before 17.6, F-Secure Client Security Standard and Premium before 14.10, F-Secure PSB Workstation Security before 12.01, and F-Secure Computer Protection Standard and Premium before 19.3, a local user can escalate their privileges through a DLL hijacking attack against the installer. The installer writes the file rm.exe to C:\Windows\Temp and then executes it. The rm.exe process then attempts to load several DLLs from its current directory. Non-admin users are able to write to this folder, so an attacker can create a malicious C:\Windows\Temp\OLEACC.dll file. When an admin runs the installer, rm.exe will execute the attacker's DLL in an elevated security context.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector : AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.f-secure.com/en/web/labs_global/fsc-2019-2	Vendor Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:f-secure:computer_protection:::::standard:::*
	cpe:2.3:a:f-secure:client_security:::::premium:::*
	cpe:2.3:a:f-secure:computer_protection:::::premium:::*
	cpe:2.3:a:f-secure:internet_security::::::::
	cpe:2.3:a:f-secure:safe::::::windows::*
	cpe:2.3:a:f-secure:psb_workstation_security::::::::
	cpe:2.3:a:f-secure:client_security:::::standard:::*

Information

Published : 2019-05-17 14:29

Updated : 2020-08-24 10:37

NVD link : CVE-2019-11644

Mitre link : CVE-2019-11644

JSON object : View

CWE

CWE-427

Uncontrolled Search Path Element

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Products Affected

f-secure

client_security
safe
computer_protection
internet_security
psb_workstation_security

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