// For flags

CVE-2022-39203

Parsing issue in matrix-org/node-irc leading to room takeovers

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

matrix-appservice-irc is an open source Node.js IRC bridge for Matrix. Attackers can specify a specific string of characters, which would confuse the bridge into combining an attacker-owned channel and an existing channel, allowing them to grant themselves permissions in the channel. The vulnerability has been patched in matrix-appservice-irc 0.35.0. As a workaround operators may disable dynamic channel joining via `dynamicChannels.enabled` to prevent users from joining new channels, which prevents any new channels being bridged outside of what is already bridged, and what is specified in the config.

matrix-appservice-irc es un puente IRC Node.js de código abierto para Matrix. Los atacantes pueden especificar una cadena de caracteres específica, que confundiría al puente para combinar un canal propiedad del atacante y un canal existente, lo que les permitiría concederse permisos en el canal. La vulnerabilidad ha sido parcheada en matrix-appservice-irc versión 0.35.0. Como mitigación, los operadores pueden deshabilitar la unión dinámica de canales por medio de "dynamicChannels.enabled" para evitar que usuarios sean unidos a nuevos canales, lo que evita que puenteen nuevos canales fuera de los que ya están puenteados, y lo que es especificado en la configuración

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-09-02 CVE Reserved
  • 2022-09-13 CVE Published
  • 2024-04-05 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-269: Improper Privilege Management
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Matrix
Search vendor "Matrix"
 Matrix Irc Bridge
Search vendor "Matrix" for product "Matrix Irc Bridge"
 < 0.35.0
Search vendor "Matrix" for product "Matrix Irc Bridge" and version " < 0.35.0"
node.js
Affected