CVE-2017-6590 Information

Description

An issue was discovered in network-manager-applet (aka network-manager-gnome) in Ubuntu 12.04 LTS 14.04 LTS 16.04 LTS and 16.10. A local attacker could use this issue at the default Ubuntu login screen to access local files and execute arbitrary commands as the lightdm user. The exploitation requires physical access to the locked computer and the Wi-Fi must be turned on. An access point that lets you use a certificate to login is required as well but it’s easy to create one. Then it’s possible to open a nautilus window and browse directories. One also can open some applications such as Firefox which is useful for downloading malicious binaries.

CVSS Vector

CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securitytracker.com/id/1037977 https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1668321 https://security.gentoo.org/glsa/201707-09 https://www.ubuntu.com/usn/usn-3217-1/ https://www.youtube.com/watch?v=Fp2lwRVg0l0

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.3