Privilege escalation in RabbitMQ

1) Insecure library loading

EUVDB-ID: #VU45783

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5419

CWE-ID: CWE-427 - Uncontrolled Search Path Element

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the application loads dynamic libraries in an insecure manner. A local user can place a specially crafted library file on the system and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

RabbitMQ: 3.7.0 - 3.8.6

External links

http://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.8.7
http://tanzu.vmware.com/security/cve-2020-5419

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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