~/talk

Hey Man, Have You Forgotten To Intialize Your Memory?

Talkat Black Hat Europe 2015 · 2015-11-10..11-13· [security]
name:Yuki Chen
links:none on file
name:Linan Hao
links:none on file
slides:none on file

A single uninitialized CAttributeValue in 64‑bit IE leads to an info leak via a relative heap spray, allowing construction of fake VARIANTs and a fake JS array to get arbitrary read/write and bypass CFG/ASLR; the exploit pops calc in the 64‑bit IE child and then uses an install broker TOCTOU (replace verified EXE between verify and run, writing via the Flash broker) to elevate to medium integrity. Two 0‑days used and later patched.

AI-written summary · about

  1. 0:00Introduction
  2. 3:10Overview of vulnerabilities
  3. 5:22Uninitialized memory bug
  4. 31:56Remote code execution demo
  5. 33:37IE sandbox bypass
  6. 45:24Sandbox escape demo and end
~/search
type to search 6,249 conferences, 138,987 speakers and 185,172 talks
~/help
cmdctrl k
search every conference, speaker and series
/
focus the filter search
h
home
c
conferences
s
speakers
e
series
t
light / dark — the status bar button does the same
?
this help
esc
close this, then clear every filter — or just the search, while you are typing in it

Ignored while you are typing. Pages without a filter rail have no search to focus.