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[email protected]CVE-2021-31371

HistoryOct 19, 2021 - 7:15 p.m.

CVE-2021-31371

2021-10-1919:15:10

CWE-200

[email protected]

web.nvd.nist.gov

In Wild

cve-2021-31371

juniper networks

junos os

qfx5000

qfx5110

qfx5120

qfx5200

qfx5210

qfx5100

security vulnerability

information exposure

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

5.1 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.0%

JSON

Juniper Networks Junos OS uses the 128.0.0.0/2 subnet for internal communications between the RE and PFEs. It was discovered that packets utilizing these IP addresses may egress an QFX5000 Series switch, leaking configuration information such as heartbeats, kernel versions, etc. out to the Internet, leading to an information exposure vulnerability. This issue affects Juniper Networks Junos OS on QFX5110, QFX5120, QFX5200, QFX5210 Series, and QFX5100 with QFX 5e Series image installed: All versions prior to 17.3R3-S12; 18.1 versions prior to 18.1R3-S13; 18.3 versions prior to 18.3R3-S5; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S5; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2;

Affected configurations

NVD

Node

juniperjunosRange≤17.2

juniperjunosMatch17.3-

juniperjunosMatch17.3r1

juniperjunosMatch17.3r1-s1

juniperjunosMatch17.3r1-s4

juniperjunosMatch17.3r2

juniperjunosMatch17.3r2-s1

juniperjunosMatch17.3r2-s2

juniperjunosMatch17.3r2-s3

juniperjunosMatch17.3r2-s4

juniperjunosMatch17.3r2-s5

juniperjunosMatch17.3r3

juniperjunosMatch17.3r3-s1

juniperjunosMatch17.3r3-s10

juniperjunosMatch17.3r3-s11

juniperjunosMatch17.3r3-s2

juniperjunosMatch17.3r3-s3

juniperjunosMatch17.3r3-s4

juniperjunosMatch17.3r3-s5

juniperjunosMatch17.3r3-s6

juniperjunosMatch17.3r3-s7

juniperjunosMatch17.3r3-s8

juniperjunosMatch17.3r3-s9

juniperjunosMatch18.1-

juniperjunosMatch18.1r1

juniperjunosMatch18.1r2

juniperjunosMatch18.1r2-s1

juniperjunosMatch18.1r2-s2

juniperjunosMatch18.1r2-s4

juniperjunosMatch18.1r3

juniperjunosMatch18.1r3-s1

juniperjunosMatch18.1r3-s10

juniperjunosMatch18.1r3-s11

juniperjunosMatch18.1r3-s12

juniperjunosMatch18.1r3-s2

juniperjunosMatch18.1r3-s3

juniperjunosMatch18.1r3-s4

juniperjunosMatch18.1r3-s5

juniperjunosMatch18.1r3-s6

juniperjunosMatch18.1r3-s7

juniperjunosMatch18.1r3-s8

juniperjunosMatch18.1r3-s9

juniperjunosMatch18.3-

juniperjunosMatch18.3r1

juniperjunosMatch18.3r1-s1

juniperjunosMatch18.3r1-s2

juniperjunosMatch18.3r1-s3

juniperjunosMatch18.3r1-s4

juniperjunosMatch18.3r1-s5

juniperjunosMatch18.3r1-s6

juniperjunosMatch18.3r2

juniperjunosMatch18.3r2-s1

juniperjunosMatch18.3r2-s2

juniperjunosMatch18.3r2-s3

juniperjunosMatch18.3r2-s4

juniperjunosMatch18.3r3

juniperjunosMatch18.3r3-s1

juniperjunosMatch18.3r3-s2

juniperjunosMatch18.3r3-s3

juniperjunosMatch18.3r3-s4

juniperjunosMatch19.1-

juniperjunosMatch19.1r1

juniperjunosMatch19.1r1-s1

juniperjunosMatch19.1r1-s2

juniperjunosMatch19.1r1-s3

juniperjunosMatch19.1r1-s4

juniperjunosMatch19.1r1-s5

juniperjunosMatch19.1r1-s6

juniperjunosMatch19.1r2

juniperjunosMatch19.1r2-s1

juniperjunosMatch19.1r2-s2

juniperjunosMatch19.1r2-s3

juniperjunosMatch19.1r3

juniperjunosMatch19.1r3-s1

juniperjunosMatch19.1r3-s2

juniperjunosMatch19.1r3-s3

juniperjunosMatch19.1r3-s4

juniperjunosMatch19.1r3-s5

juniperjunosMatch19.2-

juniperjunosMatch19.2r1

juniperjunosMatch19.2r1-s1

juniperjunosMatch19.2r1-s2

juniperjunosMatch19.2r1-s3

juniperjunosMatch19.2r1-s4

juniperjunosMatch19.2r1-s5

juniperjunosMatch19.2r1-s6

juniperjunosMatch19.2r2

juniperjunosMatch19.2r2-s1

juniperjunosMatch19.2r3

juniperjunosMatch19.2r3-s1

juniperjunosMatch19.2r3-s2

juniperjunosMatch19.3-

juniperjunosMatch19.3r1

juniperjunosMatch19.3r1-s1

juniperjunosMatch19.3r2

juniperjunosMatch19.3r2-s1

juniperjunosMatch19.3r2-s2

juniperjunosMatch19.3r2-s3

juniperjunosMatch19.3r2-s4

juniperjunosMatch19.3r2-s5

juniperjunosMatch19.3r3

juniperjunosMatch19.3r3-s1

juniperjunosMatch19.3r3-s2

juniperjunosMatch19.4r1

juniperjunosMatch19.4r1-s1

juniperjunosMatch19.4r1-s2

juniperjunosMatch19.4r1-s3

juniperjunosMatch19.4r2

juniperjunosMatch19.4r2-s1

juniperjunosMatch19.4r2-s2

juniperjunosMatch19.4r2-s3

juniperjunosMatch19.4r2-s4

juniperjunosMatch19.4r2-s5

juniperjunosMatch19.4r3

juniperjunosMatch19.4r3-s1

juniperjunosMatch19.4r3-s2

juniperjunosMatch19.4r3-s3

juniperjunosMatch19.4r3-s4

juniperjunosMatch20.1r1

juniperjunosMatch20.1r1-s1

juniperjunosMatch20.1r1-s2

juniperjunosMatch20.1r1-s3

juniperjunosMatch20.1r1-s4

juniperjunosMatch20.1r2

juniperjunosMatch20.1r2-s1

juniperjunosMatch20.1r3

juniperjunosMatch20.2r1

juniperjunosMatch20.2r1-s1

juniperjunosMatch20.2r1-s2

juniperjunosMatch20.2r1-s3

juniperjunosMatch20.2r2

juniperjunosMatch20.2r2-s1

juniperjunosMatch20.2r2-s2

juniperjunosMatch20.2r2-s3

juniperjunosMatch20.2r3

juniperjunosMatch20.2r3-s1

juniperjunosMatch20.3r1

juniperjunosMatch20.3r1-s1

juniperjunosMatch20.3r2

juniperjunosMatch20.3r2-s1

juniperjunosMatch20.3r3

juniperjunosMatch20.4r1

juniperjunosMatch20.4r1-s1

juniperjunosMatch20.4r2

juniperjunosMatch21.1r1

AND

juniperqfx5100Match-

juniperqfx5110Match-

juniperqfx5120Match-

juniperqfx5200Match-

juniperqfx5210Match-

CPENameOperatorVersion
juniper:junosjuniper junosle17.2
juniper:junosjuniper junoseq17.3
juniper:junosjuniper junoseq18.1
juniper:junosjuniper junoseq18.3
juniper:junosjuniper junoseq19.1
juniper:junosjuniper junoseq19.2
juniper:junosjuniper junoseq19.3
juniper:junosjuniper junoseq19.4
juniper:junosjuniper junoseq20.1
juniper:junosjuniper junoseq20.2

CPE	Name	Operator	Version
juniper:junos	juniper junos	le	17.2
juniper:junos	juniper junos	eq	17.3
juniper:junos	juniper junos	eq	18.1
juniper:junos	juniper junos	eq	18.3
juniper:junos	juniper junos	eq	19.1
juniper:junos	juniper junos	eq	19.2
juniper:junos	juniper junos	eq	19.3
juniper:junos	juniper junos	eq	19.4
juniper:junos	juniper junos	eq	20.1
juniper:junos	juniper junos	eq	20.2

Rows per page:

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CNA Affected

[
  {
    "platforms": [
      "QFX5000 Series"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "17.3R3-S12",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "18.1R3-S13",
        "status": "affected",
        "version": "18.1",
        "versionType": "custom"
      },
      {
        "lessThan": "18.3R3-S5",
        "status": "affected",
        "version": "18.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.1R3-S6",
        "status": "affected",
        "version": "19.1",
        "versionType": "custom"
      },
      {
        "lessThan": "19.2R1-S7, 19.2R3-S3",
        "status": "affected",
        "version": "19.2",
        "versionType": "custom"
      },
      {
        "lessThan": "19.3R2-S6, 19.3R3-S3",
        "status": "affected",
        "version": "19.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.4R1-S4, 19.4R3-S5",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R2-S2, 20.1R3-S1",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      },
      {
        "lessThan": "20.2R3-S2",
        "status": "affected",
        "version": "20.2",
        "versionType": "custom"
      },
      {
        "lessThan": "20.3R3-S1",
        "status": "affected",
        "version": "20.3",
        "versionType": "custom"
      },
      {
        "lessThan": "20.4R2-S1, 20.4R3",
        "status": "affected",
        "version": "20.4",
        "versionType": "custom"
      },
      {
        "lessThan": "21.1R1-S1, 21.1R2",
        "status": "affected",
        "version": "21.1",
        "versionType": "custom"
      },
      {
        "lessThan": "21.2R1",
        "status": "affected",
        "version": "21.2",
        "versionType": "custom"
      }
    ]
  }
]

References

kb.juniper.net/JSA11236

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

5.1 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.0%

JSON

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