CVE-2020-3979

InstallBuilder for Qt Windows (versions prior to 20.7.0) installers look for plugins at a predictable location at initialization time, writable by non-admin users. While those plugins are not required, they are loaded if present, which could allow an attacker to plant a malicious library which could result in code execution with the security scope of the installer.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.4 MEDIUM

7.8^/10

CVSS v3.0 : 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://blog.installbuilder.com/2020/08/updates-and-bug-fixes-with-version-2070.html	Vendor Advisory

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:installbuilder:installbuilder:*:*:*:*:*:qt:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

Information

Published : 2020-09-18 11:15

Updated : 2021-07-21 04:39

NVD link : CVE-2020-3979

Mitre link : CVE-2020-3979

JSON object : View

CWE

CWE-427

Uncontrolled Search Path Element

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Products Affected

microsoft

windows

installbuilder

installbuilder

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