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CVE-2019-19191

HIGHCVSS 7.8/10EPSS 0.48%

Last modified

CVE-2019-19191 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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 estimates a 0.48% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.48%

37.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ShibbolethService Provider>= 3.0.0, < 3.1.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2019-19191?
CVE-2019-19191 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.
How do I fix CVE-2019-19191?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST