Medium severity · published Jul 26, 2018
CVE-2017-12164
A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin
6.4
CVSS
0.4%
EPSS
No
On KEV
Description
A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.
CVSS vector
CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GD
Gnome Display Manager · Gnome
3.24.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12164
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-12164
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12164
Patch
https://gitlab.gnome.org/GNOME/gdm/commit/ff98b28
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