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
View Analysis Description
Analysis 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
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
(V3.0 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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Known Affected Software Configurations
Switch to CPE 2.2
Configuration 1 ( hide ) Configuration 2 ( hide ) Configuration 3 ( hide ) Configuration 4 ( hide ) Configuration 5 ( hide ) Configuration 6 ( hide ) Configuration 7 ( hide ) Configuration 8 ( hide )
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 |
CVE Modified by MITRE -
5/5/2018 9:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securitytracker.com/id/1040789 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2018-0021
NVD Published Date:
04/11/2018
NVD Last Modified:
05/21/2018
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