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…
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Exploit-DB1 entry
- LightDM (Ubuntu 16.04/16.10) - 'Guest Account' Local Privilege Escalation (Exploit-DB entry) (opens in a new tab)
EDB-ID 41923local, linuxpublished 25 Apr 2017Not verified
References tagged exploit1 reference
- 41923 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 6 days later
· 6 days later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.3.
Weakness
Affected products
n/a
- affected n/a
References (6)
- https://launchpad.net/bugs/1677924 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 41923 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://www.ubuntu.com/usn/usn-3255-1/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 97486 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-16385 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-7358)Record last updated .