Vulnerability Monitor

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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.

Published

2017-04-05T06:59:00.230

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.3 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Primary
CWE-22

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	lightdm_project	lightdm	≤ 1.22.0	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	16.10	Yes

References

http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478 Third Party Advisory, VDB Entry ([email protected])
http://www.securityfocus.com/bid/97486 Third Party Advisory, VDB Entry ([email protected])
https://launchpad.net/bugs/1677924 Third Party Advisory, VDB Entry ([email protected])
https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html Third Party Advisory, VDB Entry ([email protected])
https://www.exploit-db.com/exploits/41923/ ([email protected])
https://www.ubuntu.com/usn/usn-3255-1/ Third Party Advisory ([email protected])
http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/97486 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://launchpad.net/bugs/1677924 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/41923/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.ubuntu.com/usn/usn-3255-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)