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AUSCERT External Security Bulletin Redistribution
VMWare ThinApp - Increased Privileges
14 July 2021
AusCERT Security Bulletin Summary
Product: VMware ThinApp
Operating System: Windows
Impact/Access: Increased Privileges -- Existing Account
CVE Names: CVE-2021-22000
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1. Impacted Products
A DLL hijacking vulnerability in VMware ThinApp was privately reported to VMware. Updates are available to remediate this vulnerability in affected VMware products.
3. VMware ThinApp update addresses a DLL hijacking vulnerability (CVE-2021-22000)
VMware ThinApp contains a DLL hijacking vulnerability due to insecure loading of DLLs. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 6.8.
Known Attack Vectors
A malicious actor with non-administrative privileges may exploit this vulnerability to elevate privileges to administrator level on the Windows operating system having VMware ThinApp installed on it
To remediate CVE-2021-22000, apply the patches listed in the 'Fixed Version' column of the 'Resolution Matrix' found below.
VMware would like to thank Hou JingYi (@hjy79425575) of Qihoo 360 for reporting this issue to us.
Product Version Running On CVE Identifier CVSSv3 Severity Fixed Version Workarounds Additional Documentation
VMware ThinApp 5.x Windows CVE-2021-22000 6.8 moderate 5.2.10 None None
Fixed Version(s) and Release Notes:
Mitre CVE Dictionary Links:
FIRST CVSSv3 Calculator:
5. Change Log
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