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cveJuniperCVE-2021-31386
HistoryOct 19, 2021 - 7:15 p.m.

CVE-2021-31386

2021-10-1919:15:11
CWE-693
CWE-300
CWE-325
CWE-311
juniper
web.nvd.nist.gov
40
cve-2021-31386
protection mechanism failure
j-web http service
juniper networks
junos os
remote unauthenticated attacker
pitm attacks
nvd

CVSS2

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.7

Confidence

High

EPSS

0.002

Percentile

64.5%

JSON

A Protection Mechanism Failure vulnerability in the J-Web HTTP service of Juniper Networks Junos OS allows a remote unauthenticated attacker to perform Person-in-the-Middle (PitM) attacks against the device. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S20; 15.1 versions prior to 15.1R7-S11; 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2.

Affected configurations

Nvd
Node
juniperjunosMatch12.3-
OR
juniperjunosMatch12.3r1
OR
juniperjunosMatch12.3r10
OR
juniperjunosMatch12.3r10-s1
OR
juniperjunosMatch12.3r10-s2
OR
juniperjunosMatch12.3r11
OR
juniperjunosMatch12.3r12
OR
juniperjunosMatch12.3r12-s1
OR
juniperjunosMatch12.3r12-s10
OR
juniperjunosMatch12.3r12-s11
OR
juniperjunosMatch12.3r12-s12
OR
juniperjunosMatch12.3r12-s13
OR
juniperjunosMatch12.3r12-s14
OR
juniperjunosMatch12.3r12-s15
OR
juniperjunosMatch12.3r12-s16
OR
juniperjunosMatch12.3r12-s17
OR
juniperjunosMatch12.3r12-s18
OR
juniperjunosMatch12.3r12-s19
OR
juniperjunosMatch12.3r12-s3
OR
juniperjunosMatch12.3r12-s4
OR
juniperjunosMatch12.3r12-s6
OR
juniperjunosMatch12.3r12-s8
OR
juniperjunosMatch12.3r2
OR
juniperjunosMatch12.3r3
OR
juniperjunosMatch12.3r4
OR
juniperjunosMatch12.3r5
OR
juniperjunosMatch12.3r6
OR
juniperjunosMatch12.3r7
OR
juniperjunosMatch12.3r8
OR
juniperjunosMatch12.3r9
OR
juniperjunosMatch15.1-
OR
juniperjunosMatch15.1a1
OR
juniperjunosMatch15.1f
OR
juniperjunosMatch15.1f1
OR
juniperjunosMatch15.1f2
OR
juniperjunosMatch15.1f2-s1
OR
juniperjunosMatch15.1f2-s2
OR
juniperjunosMatch15.1f2-s3
OR
juniperjunosMatch15.1f2-s4
OR
juniperjunosMatch15.1f3
OR
juniperjunosMatch15.1f4
OR
juniperjunosMatch15.1f5
OR
juniperjunosMatch15.1f5-s7
OR
juniperjunosMatch15.1f6
OR
juniperjunosMatch15.1f6-s1
OR
juniperjunosMatch15.1f6-s10
OR
juniperjunosMatch15.1f6-s12
OR
juniperjunosMatch15.1f6-s2
OR
juniperjunosMatch15.1f6-s3
OR
juniperjunosMatch15.1f6-s4
OR
juniperjunosMatch15.1f6-s5
OR
juniperjunosMatch15.1f6-s6
OR
juniperjunosMatch15.1f6-s7
OR
juniperjunosMatch15.1f6-s8
OR
juniperjunosMatch15.1f6-s9
OR
juniperjunosMatch15.1f7
OR
juniperjunosMatch15.1r
OR
juniperjunosMatch15.1r1
OR
juniperjunosMatch15.1r2
OR
juniperjunosMatch15.1r3
OR
juniperjunosMatch15.1r4
OR
juniperjunosMatch15.1r4-s7
OR
juniperjunosMatch15.1r4-s8
OR
juniperjunosMatch15.1r4-s9
OR
juniperjunosMatch15.1r5
OR
juniperjunosMatch15.1r5-s1
OR
juniperjunosMatch15.1r5-s3
OR
juniperjunosMatch15.1r5-s5
OR
juniperjunosMatch15.1r5-s6
OR
juniperjunosMatch15.1r6
OR
juniperjunosMatch15.1r6-s1
OR
juniperjunosMatch15.1r6-s2
OR
juniperjunosMatch15.1r6-s3
OR
juniperjunosMatch15.1r6-s4
OR
juniperjunosMatch15.1r6-s6
OR
juniperjunosMatch15.1r7
OR
juniperjunosMatch15.1r7-s1
OR
juniperjunosMatch15.1r7-s10
OR
juniperjunosMatch15.1r7-s2
OR
juniperjunosMatch15.1r7-s3
OR
juniperjunosMatch15.1r7-s4
OR
juniperjunosMatch15.1r7-s5
OR
juniperjunosMatch15.1r7-s6
OR
juniperjunosMatch15.1r7-s7
OR
juniperjunosMatch15.1r7-s8
OR
juniperjunosMatch15.1r7-s9
OR
juniperjunosMatch18.3-
OR
juniperjunosMatch18.3r1
OR
juniperjunosMatch18.3r1-s1
OR
juniperjunosMatch18.3r1-s2
OR
juniperjunosMatch18.3r1-s3
OR
juniperjunosMatch18.3r1-s4
OR
juniperjunosMatch18.3r1-s5
OR
juniperjunosMatch18.3r1-s6
OR
juniperjunosMatch18.3r2
OR
juniperjunosMatch18.3r2-s1
OR
juniperjunosMatch18.3r2-s2
OR
juniperjunosMatch18.3r2-s3
OR
juniperjunosMatch18.3r2-s4
OR
juniperjunosMatch18.3r3
OR
juniperjunosMatch18.3r3-s1
OR
juniperjunosMatch18.3r3-s2
OR
juniperjunosMatch18.3r3-s3
OR
juniperjunosMatch18.3r3-s4
OR
juniperjunosMatch18.3r3-s5
OR
juniperjunosMatch18.4-
OR
juniperjunosMatch18.4r1
OR
juniperjunosMatch18.4r1-s1
OR
juniperjunosMatch18.4r1-s2
OR
juniperjunosMatch18.4r1-s3
OR
juniperjunosMatch18.4r1-s4
OR
juniperjunosMatch18.4r1-s5
OR
juniperjunosMatch18.4r1-s6
OR
juniperjunosMatch18.4r1-s7
OR
juniperjunosMatch18.4r2
OR
juniperjunosMatch18.4r2-s1
OR
juniperjunosMatch18.4r2-s2
OR
juniperjunosMatch18.4r2-s3
OR
juniperjunosMatch18.4r2-s4
OR
juniperjunosMatch18.4r2-s5
OR
juniperjunosMatch18.4r2-s6
OR
juniperjunosMatch18.4r2-s7
OR
juniperjunosMatch18.4r2-s8
OR
juniperjunosMatch18.4r3
OR
juniperjunosMatch18.4r3-s1
OR
juniperjunosMatch18.4r3-s2
OR
juniperjunosMatch18.4r3-s3
OR
juniperjunosMatch18.4r3-s4
OR
juniperjunosMatch18.4r3-s5
OR
juniperjunosMatch18.4r3-s6
OR
juniperjunosMatch18.4r3-s7
OR
juniperjunosMatch18.4r3-s8
OR
juniperjunosMatch18.4r3-s9
OR
juniperjunosMatch19.1-
OR
juniperjunosMatch19.1r1
OR
juniperjunosMatch19.1r1-s1
OR
juniperjunosMatch19.1r1-s2
OR
juniperjunosMatch19.1r1-s3
OR
juniperjunosMatch19.1r1-s4
OR
juniperjunosMatch19.1r1-s5
OR
juniperjunosMatch19.1r1-s6
OR
juniperjunosMatch19.1r2
OR
juniperjunosMatch19.1r2-s1
OR
juniperjunosMatch19.1r2-s2
OR
juniperjunosMatch19.1r3
OR
juniperjunosMatch19.1r3-s1
OR
juniperjunosMatch19.1r3-s2
OR
juniperjunosMatch19.1r3-s3
OR
juniperjunosMatch19.1r3-s4
OR
juniperjunosMatch19.1r3-s5
OR
juniperjunosMatch19.1r3-s6
OR
juniperjunosMatch19.2-
OR
juniperjunosMatch19.2r1
OR
juniperjunosMatch19.2r1-s1
OR
juniperjunosMatch19.2r1-s2
OR
juniperjunosMatch19.2r1-s3
OR
juniperjunosMatch19.2r1-s4
OR
juniperjunosMatch19.2r1-s5
OR
juniperjunosMatch19.2r1-s6
OR
juniperjunosMatch19.2r2
OR
juniperjunosMatch19.2r2-s1
OR
juniperjunosMatch19.2r3
OR
juniperjunosMatch19.2r3-s1
OR
juniperjunosMatch19.2r3-s2
OR
juniperjunosMatch19.2r3-s3
OR
juniperjunosMatch19.3-
OR
juniperjunosMatch19.3r1
OR
juniperjunosMatch19.3r1-s1
OR
juniperjunosMatch19.3r2
OR
juniperjunosMatch19.3r2-s1
OR
juniperjunosMatch19.3r2-s2
OR
juniperjunosMatch19.3r2-s3
OR
juniperjunosMatch19.3r2-s4
OR
juniperjunosMatch19.3r2-s5
OR
juniperjunosMatch19.3r3
OR
juniperjunosMatch19.3r3-s1
OR
juniperjunosMatch19.3r3-s2
OR
juniperjunosMatch19.3r3-s3
OR
juniperjunosMatch19.4r1
OR
juniperjunosMatch19.4r1-s1
OR
juniperjunosMatch19.4r1-s2
OR
juniperjunosMatch19.4r1-s3
OR
juniperjunosMatch19.4r2
OR
juniperjunosMatch19.4r2-s1
OR
juniperjunosMatch19.4r2-s2
OR
juniperjunosMatch19.4r2-s3
OR
juniperjunosMatch19.4r2-s4
OR
juniperjunosMatch19.4r3
OR
juniperjunosMatch19.4r3-s1
OR
juniperjunosMatch19.4r3-s2
OR
juniperjunosMatch19.4r3-s3
OR
juniperjunosMatch19.4r3-s4
OR
juniperjunosMatch19.4r3-s5
OR
juniperjunosMatch20.1r1
OR
juniperjunosMatch20.1r1-s1
OR
juniperjunosMatch20.1r1-s2
OR
juniperjunosMatch20.1r1-s3
OR
juniperjunosMatch20.1r1-s4
OR
juniperjunosMatch20.1r2
OR
juniperjunosMatch20.1r2-s1
OR
juniperjunosMatch20.1r3
OR
juniperjunosMatch20.1r3-s1
OR
juniperjunosMatch20.2r1
OR
juniperjunosMatch20.2r1-s1
OR
juniperjunosMatch20.2r1-s2
OR
juniperjunosMatch20.2r1-s3
OR
juniperjunosMatch20.2r2
OR
juniperjunosMatch20.2r2-s1
OR
juniperjunosMatch20.2r2-s2
OR
juniperjunosMatch20.2r2-s3
OR
juniperjunosMatch20.2r3
OR
juniperjunosMatch20.2r3-s1
OR
juniperjunosMatch20.2r3-s2
OR
juniperjunosMatch20.3r1
OR
juniperjunosMatch20.3r1-s1
OR
juniperjunosMatch20.3r2
OR
juniperjunosMatch20.3r2-s1
OR
juniperjunosMatch20.3r3
OR
juniperjunosMatch20.4r1
OR
juniperjunosMatch20.4r1-s1
OR
juniperjunosMatch20.4r2
OR
juniperjunosMatch20.4r2-s1
OR
juniperjunosMatch21.1r1
OR
juniperjunosMatch21.1r1-s1
OR
juniperjunosMatch21.1r2
OR
juniperjunosMatch21.2r1
OR
juniperjunosMatch21.2r1-s1
VendorProductVersionCPE
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r10-s1:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r10-s2:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r11:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r12:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r12-s1:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r12-s10:*:*:*:*:*:*
juniperjunos12.3cpe:2.3:o:juniper:junos:12.3:r12-s11:*:*:*:*:*:*
Rows per page:
1-10 of 2271

CNA Affected

[
  {
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "12.3R12-S20",
        "status": "affected",
        "version": "12.3",
        "versionType": "custom"
      },
      {
        "lessThan": "15.1R7-S11",
        "status": "affected",
        "version": "15.1",
        "versionType": "custom"
      },
      {
        "lessThan": "18.3R3-S6",
        "status": "affected",
        "version": "18.3",
        "versionType": "custom"
      },
      {
        "lessThan": "18.4R3-S10",
        "status": "affected",
        "version": "18.4",
        "versionType": "custom"
      },
      {
        "lessThan": "19.1R3-S7",
        "status": "affected",
        "version": "19.1",
        "versionType": "custom"
      },
      {
        "lessThan": "19.2R3-S4",
        "status": "affected",
        "version": "19.2",
        "versionType": "custom"
      },
      {
        "lessThan": "19.3R3-S4",
        "status": "affected",
        "version": "19.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.4R3-S6",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R3-S2",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      },
      {
        "lessThan": "20.2R3-S3",
        "status": "affected",
        "version": "20.2",
        "versionType": "custom"
      },
      {
        "lessThan": "20.3R3-S1",
        "status": "affected",
        "version": "20.3",
        "versionType": "custom"
      },
      {
        "lessThan": "20.4R3",
        "status": "affected",
        "version": "20.4",
        "versionType": "custom"
      },
      {
        "lessThan": "21.1R3",
        "status": "affected",
        "version": "21.1",
        "versionType": "custom"
      },
      {
        "lessThan": "21.2R2",
        "status": "affected",
        "version": "21.2",
        "versionType": "custom"
      }
    ]
  }
]

Related

nvd 1
prion 1
nessus 1
cvelist 1
nvd
nvd
CVE-2021-31386
2021-10-19 19:15:11
prion
prion
Design/Logic Flaw
2021-10-19 19:15:00
nessus
nessus
Juniper Junos OS Vulnerability (JSA11254)
2021-10-13 00:00:00
cvelist
cvelist
CVE-2021-31386 Junos OS: When using J-Web with HTTP an attacker may retrieve encryption keys via Person-in-the-Middle attacks.
2021-10-19 18:17:31

CVSS2

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.7

Confidence

High

EPSS

0.002

Percentile

64.5%

JSON
Related for CVE-2021-31386
nvd1prion1nessus1cvelist1