{"id":"CVE-2017-7358","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-7358","generatedAt":"2026-10-28T19:50:46.735Z","title":"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.","description":"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":"2017-04-05T06:59:00.000Z","lastModified":"2026-06-17T01:24:11.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.3,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-22"],"affected":["lightdm project/lightdm","canonical/ubuntu linux"],"epss":{"score":0.02669,"percentile":0.85669,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2017-04-25","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":41923,"kind":"exploit","title":"LightDM (Ubuntu 16.04/16.10) - 'Guest Account' Local Privilege Escalation","url":"https://www.exploit-db.com/exploits/41923","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/local/41923.txt","file":"exploits/linux/local/41923.txt","published":"2017-04-25","added":"2017-04-25","updated":"2018-02-15","author":"G. Geshev","type":"local","platform":"linux","port":null,"verified":false,"codes":["CVE-2017-7358"],"tags":"Local","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://blogs.securiteam.com/index.php/archives/3134"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 2.7%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/97486","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://launchpad.net/bugs/1677924","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/41923/","source":"cve@mitre.org"},{"url":"https://www.ubuntu.com/usn/usn-3255-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/97486","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://launchpad.net/bugs/1677924","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/41923/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.ubuntu.com/usn/usn-3255-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-7358","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}