#VU18735 Improper access control in Istio


Published: 2019-06-11

Vulnerability identifier: #VU18735

Vulnerability risk: High

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

CVE-ID: CVE-2019-12243

CWE-ID: CWE-284

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Istio
Web applications / Other software

Vendor: Istio

Description

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

The vulnerability exists due to security policy enforcement is disabled by default in the installation profile. A remote non-authenticated attacker can gain unrestricted access to the system via API.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Istio: 1.1 - 1.1.6


External links
http://istio.io/about/notes/
http://istio.io/blog/2019/cve-2019-12243/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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


Latest bulletins with this vulnerability