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cve[email protected]CVE-2021-34434
HistoryAug 30, 2021 - 8:15 p.m.

CVE-2021-34434

2021-08-3020:15:07
CWE-285
CWE-863
web.nvd.nist.gov
43
eclipse mosquitto
cve-2021-34434
security plugin
subscriptions
durable clients
nvd

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

5.3 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

54.6%

In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline, then existing subscriptions for that client are not revoked.

Affected configurations

NVD
Node
eclipsemosquittoRange2.0.02.0.11
Node
fedoraprojectfedoraMatch34
OR
fedoraprojectfedoraMatch35

CNA Affected

[
  {
    "vendor": "The Eclipse Foundation",
    "product": "Eclipse Mosquitto",
    "versions": [
      {
        "version": "2.0",
        "status": "affected",
        "lessThan": "unspecified",
        "versionType": "custom"
      },
      {
        "version": "unspecified",
        "lessThanOrEqual": "2.0.11",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]

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

5.3 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

54.6%