CVE-2019-19191

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-11-21 · updated 2026-06-17
Weakness: CWE-59

Description

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.

Affected products

Shibboleth Service Provider: from 3.0.0 before 3.1.0 — fixed in 3.1.0

How to fix

Upgrade to a fixed version: Shibboleth Service Provider 3.1.0. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00017.html
https://bugzilla.suse.com/show_bug.cgi?id=1157471
https://issues.shibboleth.net/jira/browse/SSPCPP-874
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00017.html
https://bugzilla.suse.com/show_bug.cgi?id=1157471
https://issues.shibboleth.net/jira/browse/SSPCPP-874

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