#VU54032 Security features bypass in OpenShift Service Mesh and servicemesh-operator (Red Hat package) - CVE-2021-3586

Vulnerability identifier: #VU54032

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-3586

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenShift Service Mesh
Server applications / Virtualization software
servicemesh-operator (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor: Red Hat Inc.

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists in the servicemesh-operator. The NetworkPolicy resources installed for Maistra do not properly specify which ports may be accessed allowing access to all ports on these resources from any pod.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenShift Service Mesh: 2.0.0 - 2.0.4

servicemesh-operator (Red Hat package): before 2.0.5-3.el8

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External links
https://access.redhat.com/errata/RHSA-2021:2380

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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