What is CVE-2019-19191?

CVE-2019-19191 is a vulnerability in the Shibboleth Service Provider (SP) 3.x before 3.1.0 that allows the user to escalate privileges to root.

How does CVE-2019-19191 occur?

CVE-2019-19191 occurs because the spec file in Shibboleth Service Provider (SP) 3.x before 3.1.0 calls chown on files in a directory controlled by the service user, allowing the user to create symlinks and escalate privileges.

What is the severity of CVE-2019-19191?

CVE-2019-19191 has a severity rating of high with a CVSS score of 7.8.

How do I fix CVE-2019-19191?

To fix CVE-2019-19191, it is recommended to upgrade to Shibboleth Service Provider (SP) version 3.1.0 or later.

Where can I find more information about CVE-2019-19191?

More information about CVE-2019-19191 can be found in the following references: - [OpenSUSE Security Announcement](http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00017.html) - [SUSE Bugzilla](https://bugzilla.suse.com/show_bug.cgi?id=1157471) - [Shibboleth Issue Tracker](https://issues.shibboleth.net/jira/browse/SSPCPP-874)

Vulnerability/
CVE-2019-19191

high

7.8

CWE

21/11/2019

14/1/2020

CVE-2019-19191

First published: Thu Nov 21 2019(Updated: )

Shibboleth Service Provider (SP) 3.x before 3.1.0 shipped a spec file that calls chown on files in a directory controlled by the service user (the shibd account) after installation. This allows the user to escalate to root by pointing symlinks to files such as /etc/shadow.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Shibboleth Service Provider	>=3.0.0<3.1.0

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Frequently Asked Questions

What is CVE-2019-19191?
CVE-2019-19191 is a vulnerability in the Shibboleth Service Provider (SP) 3.x before 3.1.0 that allows the user to escalate privileges to root.
How does CVE-2019-19191 occur?
CVE-2019-19191 occurs because the spec file in Shibboleth Service Provider (SP) 3.x before 3.1.0 calls chown on files in a directory controlled by the service user, allowing the user to create symlinks and escalate privileges.
What is the severity of CVE-2019-19191?
CVE-2019-19191 has a severity rating of high with a CVSS score of 7.8.
How do I fix CVE-2019-19191?
To fix CVE-2019-19191, it is recommended to upgrade to Shibboleth Service Provider (SP) version 3.1.0 or later.
Where can I find more information about CVE-2019-19191?
More information about CVE-2019-19191 can be found in the following references: - [OpenSUSE Security Announcement](http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00017.html) - [SUSE Bugzilla](https://bugzilla.suse.com/show_bug.cgi?id=1157471) - [Shibboleth Issue Tracker](https://issues.shibboleth.net/jira/browse/SSPCPP-874)

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vendor/shibboleth
canonical/shibboleth service provider
version/shibboleth service provider/3.0.0

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