Old TLS1.0/TLS1.1 Protocol Version Enabled
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About the rule
Rule Type
Standard
Rule Description
Detects applications or users re-enabling old TLS versions by setting the "Enabled" value to "1" for the "Protocols" registry key.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND (OBJECTNAME contains "\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\,\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1" OR ((OBJECTNAME endswith "\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0" AND isExist(OBJECTVALUENAME)) OR (OBJECTNAME endswith "\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1" AND isExist(OBJECTVALUENAME)))) AND OBJECTNAME endswith "\Enabled" AND (INFORMATION = "DWORD (0x00000001)" OR (CHANGES = 1 AND NEWTYPE = "REG_DWORD")) select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
