Security readout for executives and security teams
Plain-English summary
A person with physical console access to affected Junos OS devices may be able to reset the root password despite a setting intended to block root login. This is mainly a site-access and device-hardening risk, but successful abuse could give full administrative control of network equipment.
Executive priority
Prioritize devices in shared facilities, remote sites, labs, or data centers where console access is harder to control. This is not a typical remote exploit risk, but compromise could mean full administrative control of critical routing or security infrastructure.
Technical view
CVE-2019-0035 affects Junos OS 15.1 through 18.3 branches listed by Juniper. When `set system ports console insecure` is enabled, password recovery should be blocked, but systems booted from an OAM volume may still allow root password changes, creating an administrative bypass with physical console access.
Likely exposure
Exposure is limited to affected Junos OS releases where insecure console mode is enabled and an attacker can reach the physical console, particularly systems using or booting from OAM volumes such as `/dev/gpt/oam` or `/oam`.
Exploitation context
The provided sources do not report active exploitation, and the CVE is not marked KEV. The required physical access lowers broad internet-scale risk, but the impact is high where branch, data center, or shared facilities expose device consoles.
Researcher notes
The source bundle supports affected versions, prerequisite configuration, OAM-volume condition, physical attack vector, and fixed release thresholds. It does not provide exploit code, proof-of-concept status, or evidence of in-the-wild exploitation.
Mitigation direction
- Upgrade affected Junos OS releases to Juniper-listed fixed versions.
- Review Juniper JSA10924 for product-specific remediation guidance.
- Disable `set system ports console insecure` unless explicitly required.
- Restrict and monitor physical console access to Junos devices.
- Harden access to removable or OAM boot media.
Validation and detection
- Inventory Junos OS versions across Juniper devices.
- Check configurations for `set system ports console insecure`.
- Identify devices with OAM volumes such as `/oam`.
- Confirm physical console access is controlled and logged.
- Map each device branch to Juniper's fixed release thresholds.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-0035 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H0.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.juniper.net/JSA10924CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Trust Boundary Violation
Trust Boundary Violation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.