what you don't know can hurt you

Register | Login

FilesNewsUsersAuthors

Home Files News &[SERVICES_TAB]About Contact Add New

Showing 1 - 1 of 1

Files from Ricardo F. Teixeira

Apport / ABRT chroot Privilege Escalation

Posted Feb 3, 2018

Authored by Tavis Ormandy, Brendan Coles, StA(c)phane Graber, Ricardo F. Teixeira | Site metasploit.com

This Metasploit module attempts to gain root privileges on Linux systems by invoking the default coredump handler inside a namespace ("container"). Apport versions 2.13 through 2.17.x before 2.17.1 on Ubuntu are vulnerable, due to a feature which allows forwarding reports to a container's Apport by changing the root directory before loading the crash report, causing 'usr/share/apport/apport' within the crashed task's directory to be executed. Similarly, Fedora is vulnerable when the kernel crash handler is configured to change root directory before executing ABRT, causing 'usr/libexec/abrt-hook-ccpp' within the crashed task's directory to be executed. In both instances, the crash handler does not drop privileges, resulting in code execution as root. This Metasploit module has been tested successfully on Apport 2.14.1 on Ubuntu 14.04.1 LTS x86 and x86_64 and ABRT on Fedora 19 and 20 x86_64.

tags | exploit, x86, kernel, root, code execution

systems | linux, fedora, ubuntu

advisories | CVE-2015-1318

SHA-256 | 9c651a9002f5646905fcb8abdec1552897cd260c341ec403e60727c2cf691713

Download | Favorite | View