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Endpoint Security Client fails to upgrade with "Error 28151 - Verification of installation package failed" displayed in SmartEndpoint
Endpoint Security Client
E81.20 (EOL), E81.30 (EOL)
Endpoint Security Client fails to upgrade.
"Error 28151 - Verification of installation package failed" displayed in SmartEndpoint.
The following error appears in C:\Program Files\CheckPoint\Endpoint Security\Endpoint Common\Logs\cpda.log:
6ac Not ok, code: 0x80096005 (g_checkSignature)
6ac The timestamp signature and/or certificate could not be verified or is malformed. (g_checkSignature)
6ac Package downloaded, but verification failed. Updating UI (CDA::handleSWMgmtModuleStateDownload
"Sectigo SHA-1 Time Stamping" certificate is missing from the Windows certificates store under "Certificate Manager" > "Third-Party Root Certification Authorities".