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


Overview

Finding ID Version Rule ID IA Controls Severity
V-68847 WIN00-000150 SV-83443r1_rule High
Description
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.
STIG Date
Windows 7 Security Technical Implementation Guide 2017-02-21

Details

Check Text ( C-69319r3_chk )
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 (F-75021r1_fix)
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