CVE-2019-19191

Exp

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: 2019-11-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-19191 is rated Exploit Available (59.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.48%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-19191

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-19191

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.17% 0.48% +0.31%
2 2025-11-21 0.07% 0.17% +0.10%
3 2025-11-18 — 0.07% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-19191

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2019-19191

OS Trackers for CVE-2019-19191

vendor priority summary link
debian unimportant CVE-2019-19191 unimportant priority: Debian including 1 source packages (shibboleth-sp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-19191
suse high CVE-2019-19191 severity important: SUSE including 27 source package names (libshibsp-lite10-3.2.3-1.2, libshibsp-lite12-3.5.0-160000.2.2, …), 110 product×package rows across 37 product lines (HPE Helion OpenStack 8, SUSE Enterprise Storage 5, … (37 product lines)): Fixed 110. https://www.suse.com/security/cve/CVE-2019-19191/
ubuntu low CVE-2019-19191 low priority: Ubuntu including 1 source packages (shibboleth-sp), 8 status rows across 8 suites (bionic, disco, eoan, focal, groovy, trusty, upstream, xenial): DNE 3, ignored 2, not-affected 2, released 1. https://ubuntu.com/security/CVE-2019-19191

Affected software / configurations for CVE-2019-19191

Vendor Product Version Raw CPE
shibboleth service_provider >= 3.0.0, < 3.1.0 cpe:2.3:a:shibboleth:service_provider:*:*:*:*:*:*:*:*

References for CVE-2019-19191

cvelogic Threat Intelligence