Multiple vulnerabilities in Kibana

Published: 2021-05-25

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-22142 CVE-2021-22141
CWE-ID	CWE-254 CWE-601
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Kibana Web applications / Other software
Vendor	Elastic Stack

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Security features bypass

EUVDB-ID: #VU53541

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22142

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote user to compromise the affected system.

The vulnerability exists due to Kibana contains an embedded version of the Chromium browser that the Reporting feature uses to generate the downloadable reports. A remote user with permissions to generate reports can render arbitrary HTML with this Chromium browser and try to leverage known Chromium vulnerabilities to conduct further attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Kibana: 7.0.0 - 7.12.1

External links

http://www.elastic.co/community/security#ESA-2021-12

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.

2) Open redirect

EUVDB-ID: #VU53542

Risk: Low

CVSSv3.1: 3 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22141

CWE-ID: CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Exploit availability: No

Description

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information but requires that the victim is authenticated against Kibana instance.