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Remote Code Execution in Red Discord Bot

High severity GitHub Reviewed Published Aug 20, 2020 in Cog-Creators/Red-DiscordBot • Updated Feb 1, 2023

Package

pip Red-DiscordBot (pip)

Affected versions

<= 3.3.11

Patched versions

3.3.12

Description

Impact

A RCE exploit has been discovered in the Streams module: this exploit allows Discord users with specifically crafted "going live" messages to inject code into the Streams module's going live message. By abusing this exploit, it's possible to perform destructive actions and/or access sensitive information.

Patches

This critical exploit has been fixed on version 3.3.12 & 3.4.

Workarounds

Unloading the Streams module with unload streams can render this exploit not accessible. We still highly recommend updating to 3.3.12 or 3.4 to completely patch this issue.

References

For more information

If you have any questions or comments about this advisory:

References

@Kowlin Kowlin published to Cog-Creators/Red-DiscordBot Aug 20, 2020
Reviewed Aug 21, 2020
Published to the GitHub Advisory Database Aug 21, 2020
Published by the National Vulnerability Database Aug 21, 2020
Last updated Feb 1, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS score

1.130%
(85th percentile)

Weaknesses

CVE ID

CVE-2020-15147

GHSA ID

GHSA-7257-96vg-qf6x

Source code

Credits

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