CVE-2018-14345

An issue was discovered in SDDM through 0.17.0. If configured with ReuseSession=true, the password is not checked for users with an already existing session. Any user with access to the system D-Bus can therefore unlock any graphical session. This is related to daemon/Display.cpp and helper/backend/PamBackend.cpp.

CVSS v3.0 7.5 HIGH
CVSS v2.0 6.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:S/C:P/I:P/A:P

Exploitability : 6.8 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/sddm/sddm/commit/147cec383892d143b5e02daa70f1e7def50f5d98	Patch Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1101450	Issue Tracking Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:sddm_project:sddm:*:*:*:*:*:*:*:*

Information

Published : 2018-07-17 07:29

Updated : 2019-10-02 17:03

NVD link : CVE-2018-14345

Mitre link : CVE-2018-14345

JSON object : View

CWE

CWE-613

Insufficient Session Expiration

CWE-287

Improper Authentication

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Products Affected

sddm_project

sddm

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