Collaborate Disseminate
US-CERT is warning of a vulnerability in Microsoft’s implementation of Address Space Layout Randomization that affects Windows 8, Windows 8.1 and Windows 10. Continue reading US-CERT Warns of ASLR Implementation Flaw In Windows
Microsoft Windows 8 introduced a change in how system-wide mandatory ASLR is implemented. This change requires system-wide bottom-up ASLR to be enabled for mandatory ASLR to receive entropy. Tools that enable system-wide ASLR without also setting bottom-up ASLR will fail to properly randomize executables that do not opt in to ASLR. Continue reading VU#817544: Windows 8 and later fail to properly randomize all applications if system-wide mandatory ASLR is enabled via EMET or Windows Defender Exploit Guard
Microsoft Windows 8 introduced a change in how system-wide mandatory ASLR is implemented. This change requires system-wide bottom-up ASLR to be enabled for mandatory ASLR to receive entropy. Tools that enable system-wide ASLR without also setting bottom-up ASLR will fail to properly randomize executables that do not opt in to ASLR. Continue reading VU#817544: Windows 8 and later fail to properly randomize every application if system-wide mandatory ASLR is enabled via EMET or Windows Defender Exploit Guard
I’m currently looking into exploit mitigation techniques and I’ve come across a question I can’t find an answer to just now.
To detect the presence of let’s says PIE or Canaries within a binary there are scripts, like checks… Continue reading Detect kASLR/ASLR within a Linux firmware image without running it
I have been trying a PoC explained in https://www.trustwave.com/Resources/SpiderLabs-Blog/Baby-s-first-NX-ASLR-bypass/
I follow every step with my own address memory of bss, system@plt, ppr, etc,…
However when I execute … Continue reading Problem with pop pop ret exploit [on hold]
I want to disable address space layout randomization on my Fedora 3 virtual machine. I tried to go to /proc/sys/kernel/randomize_va_space. Unlike normal Linux machine, such a file doesn’t exist on Fedora 3. How do I disable A… Continue reading Fedora 3 Disable Address Randomization
Working through a binary exploitation course posted by RPI a few years ago. Currently on the ASLR lab and having some trouble with it (although not with the parts related to ASLR). I can’t figure out how to exploit to begin w… Continue reading Software overflow exploitation lab
Working through the modern binary exploitation course from RPI here. I’m having trouble with an example on exploiting ASLR which is supposed to use a memory leak to gain information about the stack to then calculate the offse… Continue reading ASLR bypass with info leak
Working through the modern binary exploitation course from RPI here. I’m having trouble with an example on exploiting ASLR which is supposed to use a memory leak to gain information about the stack to then calculate the offse… Continue reading ASLR bypass with info leak
Working through the Modern Binary Exploitation course from RPI here. I’m having trouble with an example on exploiting ASLR which is supposed to use a memory leak to gain information about the stack to then calculate the offset for a system… Continue reading ASLR bypass with info leak