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JuniperCVELIST:CVE-2019-0035

HistoryApr 10, 2019 - 12:00 a.m.

CVE-2019-0035 Junos OS: 'set system ports console insecure' allows root password recovery on OAM volumes

2019-04-1000:00:00

CWE-501

juniper

www.cve.org

6.8 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

30.1%

JSON

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.

CNA Affected

[
  {
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "15.1F6-S12, 15.1R7-S3",
        "status": "affected",
        "version": "15.1",
        "versionType": "custom"
      },
      {
        "lessThan": "15.1X49-D160",
        "status": "affected",
        "version": "15.1X49",
        "versionType": "custom"
      },
      {
        "lessThan": "15.1X53-D236, 15.1X53-D496, 15.1X53-D68",
        "status": "affected",
        "version": "15.1X53",
        "versionType": "custom"
      },
      {
        "lessThan": "16.1R3-S10, 16.1R6-S6, 16.1R7-S3",
        "status": "affected",
        "version": "16.1",
        "versionType": "custom"
      },
      {
        "lessThan": "16.1X65-D49",
        "status": "affected",
        "version": "16.1X65",
        "versionType": "custom"
      },
      {
        "lessThan": "16.2R2-S8",
        "status": "affected",
        "version": "16.2",
        "versionType": "custom"
      },
      {
        "lessThan": "17.1R2-S10, 17.1R3",
        "status": "affected",
        "version": "17.1",
        "versionType": "custom"
      },
      {
        "lessThan": "17.2R1-S8, 17.2R3-S1",
        "status": "affected",
        "version": "17.2",
        "versionType": "custom"
      },
      {
        "lessThan": "17.3R3-S3",
        "status": "affected",
        "version": "17.3",
        "versionType": "custom"
      },
      {
        "lessThan": "17.4R1-S6, 17.4R2-S2",
        "status": "affected",
        "version": "17.4",
        "versionType": "custom"
      },
      {
        "lessThan": "18.1R2-S4, 18.1R3-S3",
        "status": "affected",
        "version": "18.1",
        "versionType": "custom"
      },
      {
        "lessThan": "18.2R2",
        "status": "affected",
        "version": "18.2",
        "versionType": "custom"
      },
      {
        "lessThan": "18.2X75-D40",
        "status": "affected",
        "version": "18.2X75",
        "versionType": "custom"
      },
      {
        "lessThan": "18.3R1-S2",
        "status": "affected",
        "version": "18.3",
        "versionType": "custom"
      },
      {
        "lessThan": "15.1",
        "status": "unaffected",
        "version": "all",
        "versionType": "custom"
      }
    ]
  }
]

References

kb.juniper.net/JSA10924

6.8 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

30.1%

JSON

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