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MattermostCVELIST:CVE-2021-37864

HistoryJan 18, 2022 - 4:52 p.m.

CVE-2021-37864 Users can view the contents of an archived channel when access is explicitly denied by the system admin

2022-01-1816:52:19

CWE-284

Mattermost

www.cve.org

2.6 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.4%

JSON

Mattermost 6.1 and earlier fails to sufficiently validate permissions while viewing archived channels, which allows authenticated users to view contents of archived channels even when this is denied by system administrators by directly accessing the APIs.

CNA Affected

[
  {
    "product": "Mattermost ",
    "vendor": "Mattermost ",
    "versions": [
      {
        "lessThan": "6.2",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

mattermost.com/security-updates/

2.6 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.4%

JSON

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