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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (39.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- issues.shibboleth.net/jira/browse/SSPCPP-874 (Issue Tracking, Vendor Advisory)
- bugzilla.suse.com/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00017.html (vendor-advisory)
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.