In MongoDB, insufficient validation of shard key values during document insertion allowed authenticated users to store documents with specially crafted, operator-shaped objects as shard key values in sharded collections. When change stream events for such documents were processed with the updateLookup full document mode, the crafted values were embedded into internal post-image lookup queries without proper sanitization, causing them to be interpreted as query operators rather than literal equality values. This could result in change stream consumers receiving incorrect post-image documents or encountering non-resumable fatal errors.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 3
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Mongodb Mongodb
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
|
7.0.0
|
7.0.41
|
|
Mongodb Mongodb
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
|
8.0.0
|
8.0.30
|
|
Mongodb Mongodb
cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
|
8.3.0
|
8.3.9
|