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Structured Exception Handling Overwrite Protection (SEHOP) must be enabled.


Finding ID Version Rule ID IA Controls Severity
V-220727 WN10-00-000150 SV-220727r851967_rule High
Attackers are constantly looking for vulnerabilities in systems and applications. Structured Exception Handling Overwrite Protection (SEHOP) blocks exploits that use the Structured Exception Handling overwrite technique, a common buffer overflow attack.
Microsoft Windows 10 Security Technical Implementation Guide 2023-09-29


Check Text ( C-22442r554666_chk )
This is applicable to Windows 10 prior to v1709.

Verify SEHOP is turned on.

If the following registry value does not exist or is not configured as specified, this is a finding.

Registry Path: \SYSTEM\CurrentControlSet\Control\Session Manager\kernel\

Value Name: DisableExceptionChainValidation

Value Type: REG_DWORD
Value: 0x00000000 (0)
Fix Text (F-22431r554667_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Enable Structured Exception Handling Overwrite Protection (SEHOP)" to "Enabled".

This policy setting requires the installation of the SecGuide custom templates included with the STIG package. "SecGuide.admx" and "SecGuide.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.