Security restrictions bypass in Apache Kafka

1) Improper access control

EUVDB-ID: #VU19218

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-17196

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper security restrictions imposed by the affected software. A remote authenticated attacker with write permission on respective topics can send a crafted Produce request that is designed to bypass transaction/idempotent access control list (ACL) validation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache Kafka: 0.11.0.0 - 2.1.0

External links

http://www.mail-archive.com/dev@kafka.apache.org/msg99277.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.