CVE-2017-7358

In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path locations and escalate privileges to root when the guest user logs out.

CVSS v3.0 7.3 HIGH
CVSS v2.0 6.9 MEDIUM

7.3^/10

CVSS v3.0 : HIGH

Vector : AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Exploitability : 1.3 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:C/I:C/A:C

Exploitability : 3.4 / Impact : 10.0

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.ubuntu.com/usn/usn-3255-1/	Third Party Advisory
https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html	Third Party Advisory VDB Entry
https://launchpad.net/bugs/1677924	Third Party Advisory VDB Entry
http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478	VDB Entry Third Party Advisory
http://www.securityfocus.com/bid/97486	Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/41923/

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Configurations

Configuration 1 (hide)

cpe:2.3:a:lightdm_project:lightdm:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:16.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::

Information

Published : 2017-04-04 23:59

Updated : 2017-08-15 18:29

NVD link : CVE-2017-7358

Mitre link : CVE-2017-7358

JSON object : View

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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Products Affected

canonical

ubuntu_linux

lightdm_project

lightdm

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