Junos OS: Insufficient authentication for user login when a specific system configuration error occurs.
Published Jul 14, 2017
9.8
CRITICALCVSS 3.0
EPSS 1.82%
Description
A specific device configuration can result in a commit failure condition. When this occurs, a user is logged in without being prompted for a password while trying to login through console, ssh, ftp, telnet or su, etc., This issue relies upon a device configuration precondition to occur. Typically, device configurations are the result of a trusted administrative change to the system's running configuration. The following error messages may be seen when this failure occurs: mgd: error: commit failed: (statements constraint check failed) Warning: Commit failed, activating partial configuration. Warning: Edit the router configuration to fix these errors. If the administrative changes are not made that result in such a failure, then this issue is not seen. No other Juniper Networks products or platforms are affected by this issue. Affected releases are Juniper Networks Junos OS 12.3 prior to 12.3R10, 12.3R11; 12.3X48 prior to 12.3X48-D20; 13.2 prior to 13.2R8; 13.3 prior to 13.3R7; 14.1 prior to 14.1R4-S12, 14.1R5, 14.1R6; 14.1X53 prior to 14.1X53-D30; 14.2 prior to 14.2R4; 15.1 prior to 15.1F2, 15.1F3, 15.1R2.
Affected products
-
- Version 12.3 prior to 12.3R10, 12.3R11StatusaffectedConstraints-
- Version 12.3X48 prior to 12.3X48-D20StatusaffectedConstraints-
- Version 13.2 prior to 13.2R8StatusaffectedConstraints-
- Version 13.3 prior to 13.3R7StatusaffectedConstraints-
- Version 14.1 prior to 14.1R4-S12, 14.1R5, 14.1R6StatusaffectedConstraints-
- Version 14.1X53 prior to 14.1X53-D30StatusaffectedConstraints-
- Version 14.2 prior to 14.2R4StatusaffectedConstraints-
- Version 15.1 prior to 15.1F2, 15.1F3, 15.1R2StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS | n/a |
|
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3
- 12.3x48
- 12.3x48
- 13.2
- 13.2
- 13.2
- 13.2
- 13.2
- 13.2
- 13.2
- 13.2
- 13.2
- 13.2
- 13.3
- 13.3
- 13.3
- 13.3
- 13.3
- 13.3
- 14.1
- 14.1
- 14.1
- 14.1
- 14.1
- 14.1
- 14.1
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.1x53
- 14.2
- 14.2
- 14.2
- 14.2
- 14.2
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Make sure authentication works as expected after a system configuration change.
Use the SSH certificate based authentication.
Use access lists or firewall filters to limit access to the device only from trusted administrative hosts, networks and users.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.82% (0.01822) | 77.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.82% (0.01822) | 75.89th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.23% (0.00233) | 61.79th | v3 (v2023.03.01) |
| May 8, 2023 | 0.23% (0.00233) | 59.83th | v3 (v2023.03.01) |
| Apr 29, 2023 | 0.20% (0.00201) | 56.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.28% (0.00278) | 63.32th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v1 |
| Jan 6, 2022 | 0.62% (0.00624) | 17.24th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- http://www.securitytracker.com/id/1038902 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://kb.juniper.net/JSA10802 x_refsource_CONFIRMMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1038902 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://kb.juniper.net/JSA10802 | x_refsource_CONFIRMMitigationVendor Advisory |
Change history (0)
No recorded changes yet.