))
Justin N. Ferguson: Understanding the Heap by Breaking It: A Case Study of the Heap as a Persistent Data Structure Through Non-traditional Exploitation Techniques
Manage episode 152211988 series 1053194
Contenido proporcionado por Black Hat Briefings, USA 2007 [Video] Presentations from the security conference.. Todo el contenido del podcast, incluidos episodios, gráficos y descripciones de podcast, lo carga y proporciona directamente Black Hat Briefings, USA 2007 [Video] Presentations from the security conference. o su socio de plataforma de podcast. Si cree que alguien está utilizando su trabajo protegido por derechos de autor sin su permiso, puede seguir el proceso descrito aquí https://es.player.fm/legal.
Traditional exploitation techniques of overwriting heap metadata has been discussed ad-nauseum, however due to this common perspective the flexibility in abuse of the heap is commonly overlooked. This presentation examines a flaw that was found in several popular open-source applications including mod_auth_kerb (Apache Kerberos Authentication), Samba, Heimdal, OpenBSDs kerberos implementation (not exploitable), and so on, as a method for exploring
heap structure exploitation and hopefully providing a gateway to understanding the true beauty of data structure exploitation.
This focuses on the dynamic memory management implementation provided by the GNU C library, particularly ptmalloc2 and presents methods for evading certain sanity checks in the library along with previously unpublished methods for obtaining control.
…
continue reading
heap structure exploitation and hopefully providing a gateway to understanding the true beauty of data structure exploitation.
This focuses on the dynamic memory management implementation provided by the GNU C library, particularly ptmalloc2 and presents methods for evading certain sanity checks in the library along with previously unpublished methods for obtaining control.
89 episodios
Compartir
