CVE-2024-1402

2024-02-0916:15:07

CWE-400

[email protected]

web.nvd.nist.gov

mattermost

mobile app

custom emoji

security vulnerability

cve-2024-1402

4.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

4.3 Medium

AI Score

Confidence

High

0.0005 Low

EPSS

Percentile

17.1%

JSON

Mattermost fails to check if a custom emoji reaction exists when sending it to a post and to limit the amount of custom emojis allowed to be added in a post, allowing an attacker sending a huge amount of non-existent custom emojis in a post to crash the mobile app of a user seeing the post and to crash the server due to overloading when clients attempt to retrive the aforementioned post.

Affected configurations

NVD

Node

mattermostmattermost_serverRange≤8.1.7

mattermostmattermost_serverRange9.0.0–9.1.4

mattermostmattermost_serverRange9.2.0–9.2.3

CPENameOperatorVersion
mattermost:mattermost_servermattermost mattermost serverle8.1.7
mattermost:mattermost_servermattermost mattermost serverle9.1.4
mattermost:mattermost_servermattermost mattermost serverle9.2.3

CPE	Name	Operator	Version
mattermost:mattermost_server	mattermost mattermost server	le	8.1.7
mattermost:mattermost_server	mattermost mattermost server	le	9.1.4
mattermost:mattermost_server	mattermost mattermost server	le	9.2.3

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "8.1.7",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.1.4",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.2.3",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "9.3.0"
      },
      {
        "status": "unaffected",
        "version": "9.2.4"
      },
      {
        "status": "unaffected",
        "version": "9.1.5"
      },
      {
        "status": "unaffected",
        "version": "8.1.8"
      }
    ]
  }
]