CVE-2021-22038

On Windows, the uninstaller binary copies itself to a fixed temporary location, which is then executed (the originally called uninstaller exits, so it does not block the installation directory). This temporary location is not randomized and does not restrict access to Administrators only so a potential attacker could plant a binary to replace the copied binary right before it gets called, thus gaining Administrator privileges (if the original uninstaller was executed as Administrator). The vulnerability only affects Windows installers.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://blog.installbuilder.com/2021/10/installbuilder-2160-released.html	Release Notes Vendor Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:vmware:installbuilder:*:*:*:*:*:windows:*:*

Information

Published : 2021-10-29 05:15

Updated : 2021-11-03 05:53

NVD link : CVE-2021-22038

Mitre link : CVE-2021-22038

JSON object : View

CWE

CWE-330

Use of Insufficiently Random Values

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Products Affected

vmware

installbuilder

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