Collaborate Disseminate
Vulnerabilities Summary QuartzCore ( https://developer.apple.com/documentation/quartzcore ), also known as CoreAnimation, is a framework use by macOS and iOS to build an animatable scene graph. CoreAnimation uses a unique rendering model where the grap… Continue reading SSD Advisory – iOS/macOS Safari Sandbox Escape via QuartzCore Heap Overflow
I am trying to understand the basic unlinc() exploit on the Heap (yes, I know its been patched for years now.) I think I understand conceptually what is happening. The chunk that is being un-linked from the doubly linked list… Continue reading Confused over unlink() macro for malloc, pictorially, I think I understand but lost in the logic
Assuming the application is vulnerable would a process crash if it was a subject for a heap spray attack and the attack is blocked by the EDR?
I want to know when unlinking occurs, malloc or free. Please explain the algorithm of unlinking.
I am going to make heap overflow by unlinking to corrupt metadata.
Continue reading When does Heap unlinking occur, free or malloc?
It is my current understanding that in order to successfully exploit a stack-based buffer overflow vulnerability, we must first overflow the buffer, thus overwriting the return pointer and gaining control of EIP. Once we control EIP, we ca… Continue reading Buffer overflows on the heap vs the stack
I am learning about heap overflow. And I use the following code to overflow.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void jackpot() { puts(“jackpot!”); system(“/bin/sh”); }
int main()
… Continue reading Why kali cannot be exploited by user after free heap overflow? [on hold]
Vulnerabilities summary The following advisory describes 12 (twelve) vulnerabilities found in Python Bytecode Disassembler and Decompiler (pycdc). Python Bytecode Disassembler and Decompiler (pycdc) “aims to translate compiled Python byte-code ba… Continue reading SSD Advisory – Python Bytecode Disassembler and Decompiler (pycdc) Multiple Vulnerabilities
I want to make heap overflow exploit.
But I have some difficulties . I want to know how to find av->top value and how to overwrite av->top value.
I do not understand clearly.
Please answer me.
Google’s Project Zero team dubs a new WPAD-related attack as an “aPAColypse Now” that allows a local attacker to compromise a targeted and fully patched Windows 10 PC. Continue reading Project Zero Chains Bugs for ‘aPAColypse Now’ Attack on Windows 10
漏洞概要 以下安全公告描述了在GraphicsMagick中发现的两个漏洞。 GraphicsMagick是“图像处… Continue reading SSD安全公告–GraphicsMagick多个漏洞