A flaw was found in the /oauth/token/request custom endpoint of the OpenShift OAuth server allowing for XSS generation of CLI tokens due to missing X-Frame-Options and CSRF protections. If not otherwise prevented, a separate XSS vulnerability via JavaScript could further allow for the extraction of these tokens.

The remote Red Hat Enterprise Linux CoreOS 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1851 advisory.

  - web-console: XSS in OAuth server /oauth/token/request endpoint (CVE-2019-3876)

  - jenkins-plugin-token-macro: XML External Entity processing the ${XML} macro (CVE-2019-10337)

  - kube-apiserver: DoS with crafted patch of type json-patch (CVE-2019-1002100)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A flaw was found in the /oauth/token/request custom endpoint of the OpenShift OAuth server allowing for
    XSS generation of CLI tokens due to missing X-Frame-Options and CSRF protections. If not otherwise
    prevented, a separate XSS vulnerability via JavaScript could further allow for the extraction of these
    tokens. (CVE-2019-3876)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1851 advisory.

    Red Hat OpenShift Container Platform is Red Hat's cloud computing     Kubernetes application platform solution designed for on-premise or private     cloud deployments.

    Security Fix(es):

    * web-console: XSS in OAuth server /oauth/token/request endpoint     (CVE-2019-3876)

    * jenkins-plugin-token-macro: XML External Entity processing the ${XML}     macro (CVE-2019-10337)

    * kube-apiserver: DoS with crafted patch of type json-patch     (CVE-2019-1002100)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE     page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
312505	RHCOS 3 : OpenShift Container Platform 3.11 (RHSA-2019:1851)	Nessus	Red Hat Local Security Checks	medium
432139	SCA: security update for github.com/openshift/oauth-apiserver (GHSA-jgwg-35hf-xqrr)	Tenable Cloud Security	SCA Checks	medium
432139	SCA: security update for github.com/openshift/oauth-apiserver (GHSA-jgwg-35hf-xqrr)	Tenable Self-Hosted Container Security	SCA Checks	medium
127032	RHEL 7 : OpenShift Container Platform 3.11 (RHSA-2019:1851)	Nessus	Red Hat Local Security Checks	medium

Detections

Analytics

CVE-2019-3876

medium

Tenable Plugins

medium

medium

medium

medium