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CVE Record

CVE-2018-0035: Junos OS: QFX5200 and QFX10002: Unintended ONIE partition was shipped with certain Junos OS .bin and .iso images

QFX5200 and QFX10002 devices that have been shipped with Junos OS 15.1X53-D21, 15.1X53-D30, 15.1X53-D31, 15.1X53-D32, 15.1X53-D33 and 15.1X53-D60 or have been upgraded to these releases using the .bin or .iso images may contain an unintended additional Open Network Install Environment (ONIE) partition. This additional partition allows the superuser to reboot to the ONIE partition which will wipe out the content of the Junos partition and its configuration. Once rebooted, the ONIE partition will not have root password configured, thus any user can access the console or SSH, using an IP address acquired from DHCP, as root without password. Once the device has been shipped or upgraded with the ONIE partition installed, the issue will persist. Simply upgrading to higher release via the CLI will not resolve the issue. No other Juniper Networks products or platforms are affected by this issue.

MediumCVSS 4.4Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

Some Juniper QFX5200 and QFX10002 switches may contain an unintended ONIE recovery partition from specific Junos OS images. A privileged user can reboot into that partition, erase Junos and its configuration, then expose root access without a password through console or DHCP-based SSH. Exposure is limited to named Juniper QFX5200 and QFX10002 platforms with the listed Junos OS image history. The trigger requires local access and high privileges, but the operational impact can be severe because device configuration can be erased. Treat as a targeted operational-risk issue for affected Juniper switching infrastructure. It is not broadly remote-exploitable from the supplied evidence, but impacted devices could lose configuration and expose root access after an ONIE reboot. Mitigation focus: Inventory QFX5200 and QFX10002 devices and their Junos OS image history.; Review Juniper JSA10869 for supported remediation or partition cleanup guidance.; Do not rely on CLI-only upgrades to remove the persistent ONIE partition..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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CVE-2018-0035 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.4 (3.0)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.4CVSS 3.0MediumCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H0.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.4Medium
CVSS 3.0 vector shape for CVE-2018-0035Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Juniper NetworksJunos OS15.1X53Listed
Weakness

CWE details

No CWE listed

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