CVE-2023-49809

2023-12-1209:15:09

CWE-400

Mattermost

web.nvd.nist.gov

mattermost

/add endpoint

vulnerability

cve-2023-49809

null request body

plugin crash

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

Percentile

13.3%

JSON

Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled.

Affected configurations

Nvd

Node

mattermostmattermost_serverRange≤8.1.5

mattermostmattermost_serverRange9.0.0–9.1.0

VendorProductVersionCPE
mattermostmattermost_server*cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mattermost	mattermost_server	*	cpe:2.3:a:mattermost:mattermost_server::::::::

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "8.1.5",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "8.1.6"
      },
      {
        "status": "unaffected",
        "version": "9.2.0"
      }
    ]
  }
]