Path Traversal in Lightdm Project
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Lightdm Project
- Canonical Ubuntu Linux — versions 16.04, 16.10
Weakness classification (CWE)
Public proof-of-concept exploits
References
- launchpad.net/bugs/1677924 (VDB Entry, Third Party Advisory)
- lists.freedesktop.org/archives/lightdm/2017-April/001059.html (VDB Entry, Third Party Advisory)
- bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478 (VDB Entry, Third Party Advisory)
- www.exploit-db.com/exploits/41923/ (exploit)
- www.ubuntu.com/usn/usn-3255-1/ (Third Party Advisory)
- www.securityfocus.com/bid/97486 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-7358?
- CVE-2017-7358 is a high-severity vulnerability in Lightdm Project, classified under Path Traversal. CVSS score: 7.3/10. Published 2017-04-05.
- How severe is CVE-2017-7358?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2017-7358 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.