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MattermostCVELIST:CVE-2023-5876

HistoryNov 02, 2023 - 8:26 a.m.

CVE-2023-5876 Regex DoS from a malicious server enrolled in Desktop

2023-11-0208:26:01

CWE-400

Mattermost

www.cve.org

cve-2023-5876

mattermost

regexp

url path

denial of service

desktop

CVSS3

3.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

Percentile

13.3%

JSON

Mattermost fails to properly validate a RegExp built off the server URL path, allowing an attacker in control of an enrolled server to mount a Denial Of Service.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost Desktop",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "5.5.0",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.5.1"
      }
    ]
  }
]

References

mattermost.com/security-updates

CVSS3

3.1

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

Percentile

13.3%

JSON

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