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MitreCVE-2018-20052

HistoryApr 25, 2019 - 4:29 p.m.

CVE-2018-20052

2019-04-2516:29:00

CWE-1188

mitre

web.nvd.nist.gov

cerner

connectivity engine

cce

privilege escalation

cve-2018-20052

nvd

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.7

Confidence

High

EPSS

Percentile

12.6%

JSON

An issue was discovered on Cerner Connectivity Engine (CCE) 4 devices. The user running the main CCE firmware has NOPASSWD sudo privileges to several utilities that could be used to escalate privileges to root. One example is the “sudo ln -s /tmp/script /etc/cron.hourly/script” command.

Affected configurations

Nvd

Node

cernerconnectivity_engine_4_firmwareRange<201812

AND

cernerconnectivity_engine_4Match-

VendorProductVersionCPE
cernerconnectivity_engine_4_firmware*cpe:2.3:o:cerner:connectivity_engine_4_firmware:*:*:*:*:*:*:*:*
cernerconnectivity_engine_4-cpe:2.3:h:cerner:connectivity_engine_4:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cerner	connectivity_engine_4_firmware	*	cpe:2.3:o:cerner:connectivity_engine_4_firmware::::::::
cerner	connectivity_engine_4	-	cpe:2.3:h:cerner:connectivity_engine_4:-:::::::*

References

www.securifera.com/advisories/cve-2018-20052-20053/

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.7

Confidence

High

EPSS

Percentile

12.6%

JSON

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