NVD - CVE-2018-0021

CVE-2018-0021 Detail

Current Description

If all 64 digits of the connectivity association name (CKN) key or all 32 digits of the connectivity association key (CAK) key are not configured, all remaining digits will be auto-configured to 0. Hence, Juniper devices configured with short MacSec keys are at risk to an increased likelihood that an attacker will discover the secret passphrases configured for these keys through dictionary-based and brute-force-based attacks using spoofed packets. Affected releases are Juniper Networks Junos OS: 14.1 versions prior to 14.1R10, 14.1R9; 14.1X53 versions prior to 14.1X53-D47; 15.1 versions prior to 15.1R4-S9, 15.1R6-S6, 15.1R7; 15.1X49 versions prior to 15.1X49-D100; 15.1X53 versions prior to 15.1X53-D59; 16.1 versions prior to 16.1R3-S8, 16.1R4-S8, 16.1R5; 16.2 versions prior to 16.2R1-S6, 16.2R2; 17.1 versions prior to 17.1R2.

Source: MITRE
Description Last Modified: 04/11/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.8 HIGH
Vector: AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 2.8

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 3.3 LOW
Vector: (AV:A/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 6.5

Access Vector (AV): Local_Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.securitytracker.com/id/1040789	Third Party Advisory VDB Entry
https://kb.juniper.net/JSA10854	Vendor Advisory

Technical Details

Vulnerability Type (View All)

Credentials Management (CWE-255)

Vulnerable software and versions Switch to CPE 2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Initial Analysis - 5/21/2018 12:08:38 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR cpe:2.3:o:juniper:junos:14.1::::::: cpe:2.3:o:juniper:junos:14.1:r1::::::* cpe:2.3:o:juniper:junos:14.1:r2::::::* cpe:2.3:o:juniper:junos:14.1:r3::::::* cpe:2.3:o:juniper:junos:14.1:r4::::::* cpe:2.3:o:juniper:junos:14.1:r5::::::* cpe:2.3:o:juniper:junos:14.1:r6::::::* cpe:2.3:o:juniper:junos:14.1:r7::::::* cpe:2.3:o:juniper:junos:14.1:r9::::::*
Added	CPE Configuration		Record truncated, showing 500 of 594 characters. View Entire Change Record OR cpe:2.3:o:juniper:junos:14.1x53::::::: cpe:2.3:o:juniper:junos:14.1x53:d10::::::* cpe:2.3:o:juniper:junos:14.1x53:d15::::::* cpe:2.3:o:juniper:junos:14.1x53:d16::::::* cpe:2.3:o:juniper:junos:14.1x53:d25::::::* cpe:2.3:o:juniper:junos:14.1x53:d26::::::* cpe:2.3:o:juniper:junos:14.1x53:d27::::::* cpe:2.3:o:juniper:junos:14.1x53:d30::::::* cpe:2.3:o:juniper:junos:14.1x53:d35::::::* *cpe:2.3
Added	CPE Configuration		OR cpe:2.3:o:juniper:junos:15.1::::::: cpe:2.3:o:juniper:junos:15.1:r1::::::* cpe:2.3:o:juniper:junos:15.1:r2::::::* cpe:2.3:o:juniper:junos:15.1:r3::::::* cpe:2.3:o:juniper:junos:15.1:r4::::::* cpe:2.3:o:juniper:junos:15.1:r6::::::*
Added	CPE Configuration		Record truncated, showing 500 of 810 characters. View Entire Change Record OR cpe:2.3:o:juniper:junos:15.1x49::::::: cpe:2.3:o:juniper:junos:15.1x49:d10::::::* cpe:2.3:o:juniper:junos:15.1x49:d20::::::* cpe:2.3:o:juniper:junos:15.1x49:d30::::::* cpe:2.3:o:juniper:junos:15.1x49:d35::::::* cpe:2.3:o:juniper:junos:15.1x49:d40::::::* cpe:2.3:o:juniper:junos:15.1x49:d45::::::* cpe:2.3:o:juniper:junos:15.1x49:d50::::::* cpe:2.3:o:juniper:junos:15.1x49:d55::::::* *cpe:2.3
Added	CPE Configuration		Record truncated, showing 500 of 756 characters. View Entire Change Record OR cpe:2.3:o:juniper:junos:15.1x53::::::: cpe:2.3:o:juniper:junos:15.1x53:d10::::::* cpe:2.3:o:juniper:junos:15.1x53:d20::::::* cpe:2.3:o:juniper:junos:15.1x53:d21::::::* cpe:2.3:o:juniper:junos:15.1x53:d30::::::* cpe:2.3:o:juniper:junos:15.1x53:d32::::::* cpe:2.3:o:juniper:junos:15.1x53:d33::::::* cpe:2.3:o:juniper:junos:15.1x53:d34::::::* cpe:2.3:o:juniper:junos:15.1x53:d50::::::* *cpe:2.3
Added	CPE Configuration		OR cpe:2.3:o:juniper:junos:16.1:r1::::::* cpe:2.3:o:juniper:junos:16.1:r2::::::* cpe:2.3:o:juniper:junos:16.1:r3::::::* cpe:2.3:o:juniper:junos:16.1:r4::::::*
Added	CPE Configuration		OR cpe:2.3:o:juniper:junos:16.2:r1::::::*
Added	CPE Configuration		OR cpe:2.3:o:juniper:junos:17.1:r1::::::*
Added	CVSS V2		(AV:A/AC:L/Au:N/C:P/I:N/A:N)
Added	CVSS V3		AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Added	CWE		CWE-255
Changed	Reference Type	http://www.securitytracker.com/id/1040789 No Types Assigned	http://www.securitytracker.com/id/1040789 Third Party Advisory, VDB Entry
Changed	Reference Type	https://kb.juniper.net/JSA10854 No Types Assigned	https://kb.juniper.net/JSA10854 Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2018-0021
NVD Published Date:
04/11/2018
NVD Last Modified:
05/21/2018

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National Vulnerability Database