#VU16503 Security restrictions bypass in RabbitMQ - CVE-2018-1279

Vulnerability identifier: #VU16503

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1279

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RabbitMQ
Client/Desktop applications / Messaging software

Vendor: VMware, Inc

Description

The vulnerability allows a remote authenticated attacker to bypass security restrictions on the target system.

The vulnerability exists in Pivotal Software RabbitMQ due to improper security restrictions on servers in an MQ cluster. A remote authenticated attacker can use a deterministically generated cookie that is shared between all machines in the cluster of an affected system and gain unauthorized access, which could be used to conduct further attacks.

Mitigation
Install update from vendor's website.

Vulnerable software versions

RabbitMQ: 3.0.0 - 3.7.9

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External links
https://pivotal.io/security/cve-2018-1279

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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.