Information disclosure in GNOME Keyring

Published: 2018-05-23 | Updated: 2022-09-19

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2018-20781
CWE-ID	CWE-200
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software Subscribe	GNOME Keyring Client/Desktop applications / Encryption software
Vendor	Gnome Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU17715

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C]

CVE-ID: CVE-2018-20781

CWE-ID: CWE-200 - Information exposure

Exploit availability: Yes

Description

The vulnerability allows a remote root privileged attacker to gain access to potentially sensitive information.

The vulnerability exists due to the LightDM daemon in the affected software stores user passwords in cleartext. A remote attacker can performa memory dump and retrieve login credentials, which can be used to conduct further attacks.

Mitigation

Update to version 3.27.2.

Vulnerable software versions

GNOME Keyring: 3.0.0 - 3.27.0

CPE2.3

External links

http://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/1772919
http://bugzilla.gnome.org/show_bug.cgi?id=781486
http://gitlab.gnome.org/GNOME/gnome-keyring/issues/3
http://gitlab.gnome.org/GNOME/gnome-keyring/tags/3.27.2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.