Rocket.Chat in versions before 8.8.0, 8.7.1, 8.6.2, 8.5.3, 8.4.6. 8.3.8, 8.2.8, 8.1.8, and 7.10.15, the Meteor DDP methods getThreadsList and getThreadMessages accept rid / tmid as raw, untyped parameters with no schema validation. A MongoDB operator object (e.g. {"$gt": "4"}) can be substituted for a string room-id or message-id. The authorization check resolves to a room the attacker already has access to, while the downstream data query fans out across all rooms - disclosing private thread parents and their full reply content to any low-privilege authenticated user.
The REST route chat.getThreadsList was patched in v5.0 (HackerOne report #1446767) by adding rid: {type:'string'} AJV validation. The equivalent DDP method was never given the same fix and remains exploitable
Attack Parameters
Impact Assessment
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 8
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Rocket.Chat Rocket.Chat
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
|
— |
7.10.15
|
|
Rocket.Chat Rocket.Chat
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
|
8.1.0
|
8.1.8
|
|
Rocket.Chat Rocket.Chat
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
|
8.2.0
|
8.2.8
|
|
Rocket.Chat Rocket.Chat
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
|
8.3.0
|
8.3.8
|
|
Rocket.Chat Rocket.Chat
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
|
8.4.0
|
8.4.6
|
|
Rocket.Chat Rocket.Chat
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
|
8.5.0
|
8.5.3
|
|
Rocket.Chat Rocket.Chat
cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*
|
8.6.0
|
8.6.2
|
|
Rocket.Chat Rocket.Chat
cpe:2.3:a:rocket.chat:rocket.chat:8.7.0:*:*:*:*:*:*:*
|
— | — |