How to understand stack and heap overflow exploits-a vulnerability warning-the black bar safety net

This article is a detailed description of the heap,and will teach you how to write a heap-based overflow vulnerability. Run the following program: include include include int mainint argc, char argv char buf1 = malloc1 2 8; char buf2 = malloc2 5 6; read's filenostdin, buf1, 2 0 0; freebuf2;...

CVE-2015-8785

The fusefillwritepages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denial of service infinite loop via a writev system call that triggers a zero length for the first segment of an iov...

CVE-2015-8709

kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor...

CVE-2015-8709

kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor...

Design/Logic Flaw

The fusefillwritepages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denial of service infinite loop via a writev system call that triggers a zero length for the first segment of an iov...

CVE-2015-8785

The fusefillwritepages function in fs/fuse/file.c in the Linux kernel before 4.4 allows local users to cause a denial of service infinite loop via a writev system call that triggers a zero length for the first segment of an iov...

CVE-2015-8709

kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor...

CVE-2015-8709

CVE-2015-8709 affects the Linux kernel, specifically the code path in kernel/ptrace.c up to version 4.4.1. The issue arises from how uid and gid mappings are handled when establishing a user namespace, allowing a local user to gain privileges by waiting for a root process to enter that namespace ...

FreeBSD issetugid(2) System Call Vulnerability

FreeBSD is a UNIX operating system. A security vulnerability exists in FreeBSD issetugid2, which can be exploited by attackers to elevate privileges...

x86_64 Linux shell_reverse_tcp with Password - Polymorphic Version

x8664 Linux shellreversetcp with Password - Polymorphic Version. Shellcode exploit for linx86-64 platform /--------------------------------------------------------------------------------------------------------------------- / Title: tcp reverse shell with password polymorphic version 122 bytes...

Linux x86/x86_64 - Read /etc/passwd Shellcode (156 bytes)

/ + Author : B3mB4m Contact : email protected Project : https://github.com/b3mb4m/Shellsploit Greetz : Bomberman,T-Rex,KnocKout,ZoRLu If you want test it, you must compile it within x86 OS. Or basically you can get it with shellsploit. Default setthings for /etc/passwd 00000000 31C0 xor eax,eax...

FreeBSD-SA-16:10.linux

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-16:10.linux Security Advisory The FreeBSD Project Topic: Linux compatibility layer issetugid2 system call vulnerability Category: core Module: kernel Announced:...

FreeBSD -- Linux compatibility layer issetugid(2) system call

Problem Description: A programming error in the Linux compatibility layer could cause the issetugid2 system call to return incorrect information. Impact: If an application relies on output of the issetugid2 system call and that information is incorrect, this could lead to a privilege escalation...

McAfee Application Control swin.sys Kernel Driver Denial of Service Vulnerability

McAfee Application Control is a suite of program control software. The software protects enterprise servers and endpoints from the threat of unauthorized applications and malware by using a dynamic trust model. A security vulnerability in the swin.sys kernel driver for McAfee Application Control ...

F5 Networks BIG-IP : Linux kernel vulnerability (K17462)

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

FreeBSD -- Linux compatibility layer setgroups(2) system call

Problem Description: A programming error in the Linux compatibility layer setgroups2 system call can lead to an unexpected results, such as overwriting random kernel memory contents. Impact: It is possible for a local attacker to overwrite portions of kernel memory, which may result in a privileg...

Linux System Call Fuzzer: Trinity

System call fuzzers aren’t a particularly new idea. As far back as 1991, people have written apps that bomb syscall inputs with garbage data, that have had a variety of success in crashing assorted operating systems. After fixing the obvious dumb bugs however, a majority of the time these calls...

TCP Reverse Shell with Password Prompt - 151 bytes

TCP Reverse Shell with Password Prompt - 151 bytes. Shellcode exploit for linx86-64 platform /--------------------------------------------------------------------------------------------------------------------- / Title: tcp reverse shell with password prompt in 151 bytes Author: Sathish kumar...

PT-2015-7820 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel versions through 4.4.1 Description: The Linux kernel mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe...

CVE-2015-8709

kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor...