CVE-2022-39202

2022-09-1318:15:15

CWE-269

[email protected]

web.nvd.nist.gov

cve-2022-39202

matrix-appservice-irc

node.js

irc

bridge

matrix

vulnerability

patch

nvd

6.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

6.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.0%

JSON

matrix-appservice-irc is an open source Node.js IRC bridge for Matrix. The Internet Relay Chat (IRC) protocol allows you to specify multiple modes in a single mode command. Due to a bug in the underlying matrix-org/node-irc library, affected versions of matrix-appservice-irc perform parsing of such modes incorrectly, potentially resulting in the wrong user being given permissions. Mode commands can only be executed by privileged users, so this can only be abused if an operator is tricked into running the command on behalf of an attacker. The vulnerability has been patched in matrix-appservice-irc 0.35.0. As a workaround users should refrain from entering mode commands suggested by untrusted users. Avoid using multiple modes in a single command.

Affected configurations

Vulners

NVD

Node

matrix-orgmatrix_appservice_ircRange<0.35.0

CPENameOperatorVersion
matrix:matrix_irc_bridgematrix matrix irc bridgelt0.35.0

CPE	Name	Operator	Version
matrix:matrix_irc_bridge	matrix matrix irc bridge	lt	0.35.0

CNA Affected

[
  {
    "product": "matrix-appservice-irc",
    "vendor": "matrix-org",
    "versions": [
      {
        "status": "affected",
        "version": "< 0.35.0"
      }
    ]
  }
]