Vulnerability identifier: #VU22822

Vulnerability risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-3889

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Red Hat OpenShift Container Platform
Client/Desktop applications / Software for system administration

Vendor: Red Hat Inc.

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within authentication flow in oauth-server-container. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenShift Container Platform: 4.2.0 - 4.2.1, 4.1.0 - 4.1.21, 3.11.0, 3.10.0, 3.9.0, 3.8.0, 3.7.0 - 3.7.72, 3.6.0 - 3.6.1

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3889
http://access.redhat.com/errata/RHSA-2019:3722
http://access.redhat.com/errata/RHSA-2019:3770

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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.