CVE-2019-0035

Junos OS: 'set system ports console insecure' allows root password recovery on OAM volumes

MEDIUM

6.8

CVSS Score

Published: April 10, 2019 at 08:13 PM UTC

Updated: June 17, 2026 at 02:07 AM UTC

1 product affected across 1 vendorJunos

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Severity

MEDIUM6.8

Exploit prediction

EPSS 0.4%

Description

When "set system ports console insecure" is enabled, root login is disallowed for Junos OS as expected. However, the root password can be changed using "set system root-authentication plain-text-password" on systems booted from an OAM (Operations, Administration, and Maintenance) volume, leading to a possible administrative bypass with physical access to the console. OAM volumes (e.g. flash drives) are typically instantiated as /dev/gpt/oam, or /oam for short. Password recovery, changing the root password from a console, should not have been allowed from an insecure console. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1F6-S12, 15.1R7-S3; 15.1X49 versions prior to 15.1X49-D160; 15.1X53 versions prior to 15.1X53-D236, 15.1X53-D496, 15.1X53-D68; 16.1 versions prior to 16.1R3-S10, 16.1R6-S6, 16.1R7-S3; 16.1X65 versions prior to 16.1X65-D49; 16.2 versions prior to 16.2R2-S8; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R3-S1; 17.3 versions prior to 17.3R3-S3; 17.4 versions prior to 17.4R1-S6, 17.4R2-S2; 18.1 versions prior to 18.1R2-S4, 18.1R3-S3; 18.2 versions prior to 18.2R2; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S2. This issue does not affect Junos OS releases prior to 15.1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos · Juniper Networks

95%

15.1X49 ≤ v < 15.1X49-D16015.1X53 ≤ v < 15.1X53-D236, 15.1X53-D496, 15.1X53-D6816.1 ≤ v < 16.1R3-S10, 16.1R6-S6, 16.1R7-S316.1X65 ≤ v < 16.1X65-D4916.2 ≤ v < 16.2R2-S817.1 ≤ v < 17.1R2-S10, 17.1R317.2 ≤ v < 17.2R1-S8, 17.2R3-S117.3 ≤ v < 17.3R3-S317.4 ≤ v < 17.4R1-S6, 17.4R2-S218.1 ≤ v < 18.1R2-S4, 18.1R3-S318.2 ≤ v < 18.2R218.2X75 ≤ v < 18.2X75-D4018.3 ≤ v < 18.3R1-S215.1 f2 15.1 f3 15.1 f4 15.1 f5 15.1 f6 15.1 f7 15.1 r1 15.1 r2 15.1 r3 15.1 r4 15.1 r5 15.1 r6 15.1X49 15.1X53 15.1x49 d10 15.1x49 d100 15.1x49 d110 15.1x49 d120 15.1x49 d130 15.1x49 d150 15.1x49 d20 15.1x49 d30 15.1x49 d35 15.1x49 d40 15.1x49 d45 15.1x49 d50 15.1x49 d60 15.1x49 d65 15.1x49 d70 15.1x49 d75 15.1x49 d80 15.1x49 d90 15.1x53 d10 15.1x53 d20 15.1x53 d21 15.1x53 d210 15.1x53 d230 15.1x53 d231 15.1x53 d23215.1x53 d23315.1x53 d25 15.1x53 d30 15.1x53 d32 15.1x53 d33 15.1x53 d34 15.1x53 d40 15.1x53 d45 15.1x53 d495 15.1x53 d56 15.1x53 d60 15.1x53 d61 15.1x53 d62 15.1x53 d63 16.1 16.1 r1 16.1 r2 16.1 r3 16.1 r4 16.1 r5 16.1 r6 16.1 r7 16.1X65 16.1x65 d30 16.1x65 d35 16.1x65 d40 16.2 16.2 r1 16.2 r2 16.2 r2-s7 17.1 17.1 r1 17.1 r2 17.2 17.2 r1 17.2 r1-s7 17.2 r2 17.2 r3 17.3 17.3 r1 17.3 r2 17.3 r3 17.4 17.4 r1 17.4 r1-s7 17.4 r2 18.1 18.1 r1 18.1 r2 18.1 r3-s2 18.2 18.2 r1 18.2 r1-s3 18.2X7518.2x7518.3 18.3 r1 18.3 r1-s1

Vendor states this is fixed in 15.1 (unaffected)

Affected range stops below 15.1X49-D160, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.1X53-D236, 15.1X53-D496, 15.1X53-D68, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.1R3-S10, 16.1R6-S6, 16.1R7-S3, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.1X65-D49, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.2R2-S8, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.1R2-S10, 17.1R3, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.2R1-S8, 17.2R3-S1, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.3R3-S3, so it looks safe — our inference, not a vendor statement

Affected range stops below 17.4R1-S6, 17.4R2-S2, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.1R2-S4, 18.1R3-S3, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.2R2, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.2X75-D40, so it looks safe — our inference, not a vendor statement

Affected range stops below 18.3R1-S2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://kb.juniper.net/JSA10924

References (1)

x_refsource_CONFIRMVendor Advisory

Source: [email protected]

https://kb.juniper.net/JSA10924

CVSS

6.8MEDIUM[email protected]

Attack Vector: PHYSICAL
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-501CWE-522

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