In Spring for Apache Kafka 3.0.9 and earlier and versions 2.9.10 and earlier, a possible deserialization attack vector existed, but only if unusual configuration was applied. An attacker would have to construct a malicious serialized object in one of the deserialization exception record headers.
Specifically, an application is vulnerable when all of the following are true:
  *  The user does notĀ configure an ErrorHandlingDeserializer for the key and/or value of the record
  *  The user explicitly sets container properties checkDeserExWhenKeyNull and/or checkDeserExWhenValueNull container properties to true.
  *  The user allows untrusted sources to publish to a Kafka topic
By default, these properties are false, and the container only attempts to deserialize the headers if an ErrorHandlingDeserializer is configured. The ErrorHandlingDeserializer prevents the vulnerability by removing any such malicious headers before processing the record.
                
            Metrics
Affected Vendors & Products
References
        | Link | Providers | 
|---|---|
| https://spring.io/security/cve-2023-34040 |     | 
History
                    Tue, 01 Oct 2024 17:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | ssvc 
 | 
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: vmware
Published: 2023-08-24T12:59:20.620Z
Updated: 2024-10-01T16:13:52.394Z
Reserved: 2023-05-25T17:21:56.201Z
Link: CVE-2023-34040
 Vulnrichment
                        Vulnrichment
                    Updated: 2024-08-02T15:54:14.211Z
 NVD
                        NVD
                    Status : Modified
Published: 2023-08-24T13:15:07.453
Modified: 2024-11-21T08:06:27.340
Link: CVE-2023-34040
 Redhat
                        Redhat
                    No data.