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cvelistJuniperCVELIST:CVE-2018-0008
HistoryJan 10, 2018 - 12:00 a.m.

CVE-2018-0008 Junos OS: commit script may allow unauthenticated root login upon reboot

2018-01-1000:00:00
juniper
www.cve.org

6.2 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.6 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.0%

An unauthenticated root login may allow upon reboot when a commit script is used. A commit script allows a device administrator to execute certain instructions during commit, which is configured under the [system scripts commit] stanza. Certain commit scripts that work without a problem during normal commit may cause unexpected behavior upon reboot which can leave the system in a state where root CLI login is allowed without a password due to the system reverting to a “safe mode” authentication state. Lastly, only logging in physically to the console port as root, with no password, will work. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D71 on SRX; 12.3X48 versions prior to 12.3X48-D55 on SRX; 14.1 versions prior to 14.1R9; 14.1X53 versions prior to 14.1X53-D40 on QFX, EX; 14.2 versions prior to 14.2R7-S9, 14.2R8; 15.1 versions prior to 15.1F5-S7, 15.1F6-S8, 15.1R5-S6, 15.1R6; 15.1X49 versions prior to 15.1X49-D110 on SRX; 15.1X53 versions prior to 15.1X53-D232 on QFX5200/5110; 15.1X53 versions prior to 15.1X53-D49, 15.1X53-D470 on NFX; 15.1X53 versions prior to 15.1X53-D65 on QFX10K; 16.1 versions prior to 16.1R2. No other Juniper Networks products or platforms are affected by this issue.

CNA Affected

[
  {
    "platforms": [
      "SRX"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "12.1X46-D71",
        "status": "affected",
        "version": "12.1X46",
        "versionType": "custom"
      },
      {
        "lessThan": "12.3X48-D55",
        "status": "affected",
        "version": "12.3X48",
        "versionType": "custom"
      },
      {
        "lessThan": "15.1X49-D110 ",
        "status": "affected",
        "version": "15.1X49",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "14.1R9",
        "status": "affected",
        "version": "14.1",
        "versionType": "custom"
      },
      {
        "lessThan": "14.2R7-S9, 14.2R8",
        "status": "affected",
        "version": "14.2",
        "versionType": "custom"
      },
      {
        "lessThan": "15.1F5-S7, 15.1F6-S8, 15.1R5-S6, 15.1R6",
        "status": "affected",
        "version": "15.1",
        "versionType": "custom"
      },
      {
        "lessThan": "16.1R2",
        "status": "affected",
        "version": "16.1",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QFX, EX"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "14.1X53-D40",
        "status": "affected",
        "version": "14.1X53",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QFX5200/5110"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "15.1X53-D232",
        "status": "affected",
        "version": "15.1X53",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "NFX"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "15.1X53-D49, 15.1X53-D470",
        "status": "affected",
        "version": "15.1X53",
        "versionType": "custom"
      }
    ]
  },
  {
    "platforms": [
      "QFX10K"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "15.1X53-D65",
        "status": "affected",
        "version": "15.1X53",
        "versionType": "custom"
      }
    ]
  }
]

6.2 Medium

CVSS3

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

6.6 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

21.0%

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