7.3high

CVE-2017-73581 exploit

In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path lo…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.7%
percentile 86%
Public exploits
1
Exploit-DB

Summary

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.

Exploit prediction (EPSS)

2.67% probability of exploitation in the next 30 days, higher than 86% of all scored CVEs.

Exploits and detections

  • EDB-41923 LightDM (Ubuntu 16.04/16.10) - 'Guest Account' Local Privilege Escalation · local · 2017-04-25

CVSS scores

Assigned byVersionScoreVector
NVD3.07.3CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD2.06.9AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

  • launchpad.net /bugs/1677924 · x_refsource_CONFIRM, x_transferred
  • lists.freedesktop.org /archives/lightdm/2017-April/001059.html · x_refsource_CONFIRM, x_transferred
  • bazaar.launchpad.net /~lightdm-team/lightdm/trunk/revision/2478 · x_refsource_CONFIRM, x_transferred
  • exploit-db.com /exploits/41923/ · exploit, x_refsource_EXPLOIT-DB, x_transferred
  • ubuntu.com /usn/usn-3255-1/ · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/97486 · vdb-entry, x_refsource_BID, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.