What is CVE-2019-19191?

CVE-2019-19191 is a high-severity vulnerability in Shibboleth Service Provider, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2019-11-21.

How severe is CVE-2019-19191?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Shibboleth Service Provider

CVE-2019-19191

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.

EPSS: 0.005 (38.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Shibboleth Service_provider
N/a — versions n/a

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

cve@mitre.org (x_refsource_MISC, Issue Tracking, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (vendor-advisory, x_refsource_SUSE)

Frequently asked questions

What is CVE-2019-19191?: CVE-2019-19191 is a high-severity vulnerability in Shibboleth Service Provider, classified under Improper Link Resolution Before File Access. CVSS score: 7.8/10. Published 2019-11-21.
How severe is CVE-2019-19191?: High severity. CVSS v3 base score is 7.8 out of 10.