SafeSEHenabled

SafeSEHenabled is a security feature in the Windows operating system designed to mitigate certain types of buffer overflow attacks that exploit the Structured Exception Handling (SEH) mechanism. SEH is a mechanism used by Windows to handle exceptions and errors, providing a structured way for programs to manage unexpected events.

Traditional SEH attacks involve overwriting the exception handler pointer in the SEH chain with the address of malicious code. SafeSEH, when enabled, makes it significantly more difficult for an attacker to manipulate the SEH chain. This is typically achieved by randomizing the address of the SEH structure or making it non-writable.

The feature is intended to prevent attackers from redirecting the program's execution flow by injecting and executing arbitrary code through SEH. By enhancing the security of the SEH mechanism, SafeSEH helps protect applications from being compromised through this specific vulnerability class.

It is a security enhancement that can be configured on a per-application basis or as a system-wide setting, depending on the Windows version and configuration options available.