Vulnerability identifier: #VU27380

Vulnerability risk: High

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

CVE-ID: CVE-2020-1764

CWE-ID: CWE-321

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Kiali
Client/Desktop applications / Other client software

Vendor: Kiali

Description

The vulnerability allows a remote attacker to gain unauthorized access to the system.

The vulnerability exists due to presence of a hard-coded cryptographic key in the default configuration file. A remote attacker can create their own JWT signed tokens and bypass Kiali authentication mechanisms, possibly gaining privileges to view and alter the Istio configuration.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Kiali: 0.4.0 - 1.15.0

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1764
http://kiali.io/news/security-bulletins/kiali-security-001/

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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. However, proof of concept for this vulnerability is available.