KeenLab iOS Jailbreak Internals: Userland Read-Only Memory can be Dangerous

Дата: 15.01.2020. Автор: CISO CLUB. Категории: Подкасты и видео по информационной безопасности

Modern operating systems nowadays implement read-only memory mappings at their CPU architecture level, preventing common security attacks. By mapping memories as read-only, the memory owner process can usually trust the memory content, eleminating unnecessary security considerations such as boundary check, TOCTTOU(Time of check to time of use) issues etc., with the assumption of other processes not being able to mutate read-only shared mappings in their own virtual spaces.

By Liang Chen

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