Structured Exception Handling Overwrite Protection (SEHOP) must be turned on.

From Windows 8/8.1 Security Technical Implementation Guide

Associated with: CCI-002824

SV-83441r1_rule Structured Exception Handling Overwrite Protection (SEHOP) must be turned on.

Vulnerability discussion

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.

Check content

If SEHOP is configured through the Enhanced Mitigation Experience Toolkit (EMET) (V-36706), this is NA. Verify SEHOP is turned on. If the following registry value does not exist or is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Session Manager\kernel\ Value Name: DisableExceptionChainValidation Value Type: REG_DWORD Value: 0

Fix text

Configure the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \SYSTEM\CurrentControlSet\Control\Session Manager\kernel\ Value Name: DisableExceptionChainValidation Value Type: REG_DWORD Value: 0

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