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cveJuniperCVE-2021-0256
HistoryApr 22, 2021 - 8:15 p.m.

CVE-2021-0256

2021-04-2220:15:09
CWE-269
CWE-250
juniper
web.nvd.nist.gov
21
4
cve-2021-0256
juniper networks
junos os
mosquitto
information disclosure
vulnerability
security

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.4

Confidence

High

EPSS

0

Percentile

5.1%

A sensitive information disclosure vulnerability in the mosquitto message broker of Juniper Networks Junos OS may allow a locally authenticated user with shell access the ability to read portions of sensitive files, such as the master.passwd file. Since mosquitto is shipped with setuid permissions enabled and is owned by the root user, this vulnerability may allow a local privileged user the ability to run mosquitto with root privileges and access sensitive information stored on the local filesystem. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12, 17.4 versions prior to 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.3 versions prior to 18.3R3-S4; 19.1 versions prior to 19.1R3-S4; 19.3 versions prior to 19.3R3-S1, 19.3R3-S2; 19.4 versions prior to 19.4R2-S3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S3, 20.2R2, 20.2R3.

Affected configurations

Nvd
Node
juniperjunosMatch17.3-
OR
juniperjunosMatch17.3r1
OR
juniperjunosMatch17.3r1-s1
OR
juniperjunosMatch17.3r1-s4
OR
juniperjunosMatch17.3r2
OR
juniperjunosMatch17.3r2-s1
OR
juniperjunosMatch17.3r2-s2
OR
juniperjunosMatch17.3r2-s3
OR
juniperjunosMatch17.3r2-s4
OR
juniperjunosMatch17.3r2-s5
OR
juniperjunosMatch17.3r3
OR
juniperjunosMatch17.3r3-
OR
juniperjunosMatch17.3r3-s1
OR
juniperjunosMatch17.3r3-s10
OR
juniperjunosMatch17.3r3-s11
OR
juniperjunosMatch17.3r3-s2
OR
juniperjunosMatch17.3r3-s3
OR
juniperjunosMatch17.3r3-s4
OR
juniperjunosMatch17.3r3-s5
OR
juniperjunosMatch17.3r3-s6
OR
juniperjunosMatch17.3r3-s7
OR
juniperjunosMatch17.3r3-s8
OR
juniperjunosMatch17.3r3-s9
OR
juniperjunosMatch17.4-
OR
juniperjunosMatch17.4r1
OR
juniperjunosMatch17.4r1-s1
OR
juniperjunosMatch17.4r1-s2
OR
juniperjunosMatch17.4r1-s3
OR
juniperjunosMatch17.4r1-s4
OR
juniperjunosMatch17.4r1-s5
OR
juniperjunosMatch17.4r1-s6
OR
juniperjunosMatch17.4r1-s7
OR
juniperjunosMatch17.4r2
OR
juniperjunosMatch17.4r2-s1
OR
juniperjunosMatch17.4r2-s10
OR
juniperjunosMatch17.4r2-s11
OR
juniperjunosMatch17.4r2-s12
OR
juniperjunosMatch17.4r2-s2
OR
juniperjunosMatch17.4r2-s3
OR
juniperjunosMatch17.4r2-s4
OR
juniperjunosMatch17.4r2-s5
OR
juniperjunosMatch17.4r2-s6
OR
juniperjunosMatch17.4r2-s7
OR
juniperjunosMatch17.4r2-s8
OR
juniperjunosMatch17.4r2-s9
OR
juniperjunosMatch17.4r3
OR
juniperjunosMatch17.4r3-s1
OR
juniperjunosMatch17.4r3-s2
OR
juniperjunosMatch17.4r3-s3
OR
juniperjunosMatch18.1-
OR
juniperjunosMatch18.1r1
OR
juniperjunosMatch18.1r2
OR
juniperjunosMatch18.1r2-s1
OR
juniperjunosMatch18.1r2-s2
OR
juniperjunosMatch18.1r2-s4
OR
juniperjunosMatch18.1r3
OR
juniperjunosMatch18.1r3-s1
OR
juniperjunosMatch18.1r3-s10
OR
juniperjunosMatch18.1r3-s11
OR
juniperjunosMatch18.1r3-s2
OR
juniperjunosMatch18.1r3-s3
OR
juniperjunosMatch18.1r3-s4
OR
juniperjunosMatch18.1r3-s5
OR
juniperjunosMatch18.1r3-s6
OR
juniperjunosMatch18.1r3-s7
OR
juniperjunosMatch18.1r3-s8
OR
juniperjunosMatch18.1r3-s9
OR
juniperjunosMatch18.2-
OR
juniperjunosMatch18.2r1
OR
juniperjunosMatch18.2r1-s2
OR
juniperjunosMatch18.2r1-s3
OR
juniperjunosMatch18.2r1-s4
OR
juniperjunosMatch18.2r1-s5
OR
juniperjunosMatch18.2r2
OR
juniperjunosMatch18.2r2-s1
OR
juniperjunosMatch18.2r2-s2
OR
juniperjunosMatch18.2r2-s3
OR
juniperjunosMatch18.2r2-s4
OR
juniperjunosMatch18.2r2-s5
OR
juniperjunosMatch18.2r2-s6
OR
juniperjunosMatch18.2r2-s7
OR
juniperjunosMatch18.2r3
OR
juniperjunosMatch18.2r3-s1
OR
juniperjunosMatch18.2r3-s2
OR
juniperjunosMatch18.2r3-s3
OR
juniperjunosMatch18.2r3-s4
OR
juniperjunosMatch18.2r3-s5
OR
juniperjunosMatch18.2r3-s6
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
juniperjunosMatch18.4-
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
juniperjunosMatch18.4r3
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
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
juniperjunosMatch19.1r2
OR
juniperjunosMatch19.1r2-s1
OR
juniperjunosMatch19.1r3
OR
juniperjunosMatch19.1r3-s1
OR
juniperjunosMatch19.1r3-s2
OR
juniperjunosMatch19.1r3-s3
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
juniperjunosMatch19.2r2
OR
juniperjunosMatch19.2r2-s1
OR
juniperjunosMatch19.2r3
OR
juniperjunosMatch19.2r3-s1
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
juniperjunosMatch19.4r1
OR
juniperjunosMatch19.4r1-s1
OR
juniperjunosMatch19.4r1-s2
OR
juniperjunosMatch19.4r2
OR
juniperjunosMatch19.4r2-s1
OR
juniperjunosMatch19.4r2-s2
OR
juniperjunosMatch19.4r3
OR
juniperjunosMatch19.4r3-s1
OR
juniperjunosMatch20.1r1
OR
juniperjunosMatch20.1r1-s1
OR
juniperjunosMatch20.1r1-s2
OR
juniperjunosMatch20.1r1-s3
OR
juniperjunosMatch20.1r1-s4
OR
juniperjunosMatch20.2r1
OR
juniperjunosMatch20.2r1-s1
OR
juniperjunosMatch20.2r1-s2
OR
juniperjunosMatch20.2r1-s3
OR
juniperjunosMatch20.2r2
OR
juniperjunosMatch20.3r1
OR
juniperjunosMatch20.4r1
OR
juniperjunosMatch20.4r1-s1
VendorProductVersionCPE
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r1-s1:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r1-s4:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r2-s3:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r2-s4:*:*:*:*:*:*
juniperjunos17.3cpe:2.3:o:juniper:junos:17.3:r2-s5:*:*:*:*:*:*
Rows per page:
1-10 of 1831

CNA Affected

[
  {
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "17.3R3-S12",
        "status": "affected",
        "version": "17.3",
        "versionType": "custom"
      },
      {
        "lessThan": "17.4R3-S4",
        "status": "affected",
        "version": "17.4",
        "versionType": "custom"
      },
      {
        "lessThan": "18.1R3-S12",
        "status": "affected",
        "version": "18.1",
        "versionType": "custom"
      },
      {
        "lessThan": "18.3R3-S4",
        "status": "affected",
        "version": "18.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.1R3-S4",
        "status": "affected",
        "version": "19.1",
        "versionType": "custom"
      },
      {
        "lessThan": "19.3R3-S1, 19.3R3-S2",
        "status": "affected",
        "version": "19.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.4R2-S3",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R2",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      },
      {
        "lessThan": "20.2R1-S3, 20.2R2, 20.2R3",
        "status": "affected",
        "version": "20.2",
        "versionType": "custom"
      }
    ]
  }
]

Social References

More

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

5.4

Confidence

High

EPSS

0

Percentile

5.1%

Related for CVE-2021-0256