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CVE-2017-4915

Status Candidate

Overview

VMware Workstation Pro/Player contains an insecure library loading vulnerability via ALSA sound driver configuration files. Successful exploitation of this issue may allow unprivileged host users to escalate their privileges to root in a Linux host machine.

Related Files

VMware Workstation ALSA Config File Local Privilege Escalation
Posted Jan 5, 2018
Authored by Brendan Coles, Jann Horn | Site metasploit.com

This Metasploit module exploits a vulnerability in VMware Workstation Pro and Player on Linux which allows users to escalate their privileges by using an ALSA configuration file to load and execute a shared object as root when launching a virtual machine with an attached sound card. This Metasploit module has been tested successfully on VMware Player version 12.5.0 on Debian Linux.

tags | exploit, root
systems | linux, debian
advisories | CVE-2017-4915
SHA-256 | c82f5471028db8f14a58823ca9cf2f8d0e9d04c4729b84df6afb7c957fb97cb5
VMWare Workstation On Linux Privilege Escalation
Posted May 22, 2017
Authored by Jann Horn, Google Security Research

This vulnerability permits an unprivileged user on a Linux machine on which VMWare Workstation is installed to gain root privileges. The issue is that, for VMs with audio, the privileged VM host process loads libasound, which parses ALSA configuration files, including one at ~/.asoundrc. libasound is not designed to run in a setuid context and deliberately permits loading arbitrary shared libraries via dlopen().

tags | exploit, arbitrary, root
systems | linux
advisories | CVE-2017-4915
SHA-256 | 4f6b3ffb38593e545a6d2b121f82db2cd943284427086d0cf851e6f78aa712bf
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