VulnerabilityModified
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.
HIGH 7.3EPSS 2.67%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.67%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.3 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.67% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- lightdm project/lightdm · canonical/ubuntu linux
- Source
- cve@mitre.org
References
- http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/97486Third Party Advisory, VDB Entry
- https://launchpad.net/bugs/1677924Third Party Advisory, VDB Entry
- https://lists.freedesktop.org/archives/lightdm/2017-April/001059.htmlThird Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41923/
- https://www.ubuntu.com/usn/usn-3255-1/Third Party Advisory
- http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/97486Third Party Advisory, VDB Entry
- https://launchpad.net/bugs/1677924Third Party Advisory, VDB Entry
- https://lists.freedesktop.org/archives/lightdm/2017-April/001059.htmlThird Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/41923/
- https://www.ubuntu.com/usn/usn-3255-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.