CVE-2020-15278 Unauthorized privilege escalation in Mod module

2020-10-2816:35:15

CWE-863

GitHub_M

www.cve.org

cve-2020-15278

unauthorized privilege escalation

mod module

red discord bot

version 3.4.1

guild

hierarchy checks

exploit

destructive actions

workaround

massban command

CVSS3

7.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.002

Percentile

62.1%

JSON

Red Discord Bot before version 3.4.1 has an unauthorized privilege escalation exploit in the Mod module. This exploit allows Discord users with a high privilege level within the guild to bypass hierarchy checks when the application is in a specific condition that is beyond that user’s control. By abusing this exploit, it is possible to perform destructive actions within the guild the user has high privileges in. This exploit has been fixed in version 3.4.1. As a workaround, unloading the Mod module with unload mod or, disabling the massban command with command disable global massban can render this exploit not accessible. We still highly recommend updating to 3.4.1 to completely patch this issue.

CNA Affected

[
  {
    "product": "Red-DiscordBot",
    "vendor": "Cog-Creators",
    "versions": [
      {
        "status": "affected",
        "version": "< 3.4.1"
      }
    ]
  }
]