CVE-2023-22947

Name: CVE-2023-22947
Creator: NVD / NIST
Published: 2023-01-11T02:15:11.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.3/10EPSS 0.31%

Last modified Jun 17, 2026

CVE-2023-22947 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Insecure folder permissions in the Windows installation path of Shibboleth Service Provider (SP) before 3.4.1 allow an unprivileged local attacker to escalate privileges to SYSTEM via DLL planting in the service executable's folder. This occurs because the installation goes under C:\opt (rather than C:\Program Files) by default. EPSS estimates a 0.31% chance of exploitation in the next 30 days.

Description

Insecure folder permissions in the Windows installation path of Shibboleth Service Provider (SP) before 3.4.1 allow an unprivileged local attacker to escalate privileges to SYSTEM via DLL planting in the service executable's folder. This occurs because the installation goes under C:\opt (rather than C:\Program Files) by default. NOTE: the vendor disputes the significance of this report, stating that "We consider the ACLs a best effort thing" and "it was a documentation mistake."

Metrics

CVSS 3.1

7.3/10

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

EPSS Probability

0.31%

22.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Shibboleth	Service Provider	< 3.4.1

References

https://shibboleth.atlassian.net/browse/SSPCPP-961Exploit, Issue Tracking, Third Party Advisory
https://shibboleth.atlassian.net/wiki/spaces/SP3/pages/2065335545/Install+on+Windows#Restricting-ACLsThird Party Advisory
https://shibboleth.atlassian.net/browse/SSPCPP-961Exploit, Issue Tracking, Third Party Advisory
https://shibboleth.atlassian.net/wiki/spaces/SP3/pages/2065335545/Install+on+Windows#Restricting-ACLsThird Party Advisory

Timeline

Published: Jan 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-22947?

How severe is CVE-2023-22947?

CVE-2023-22947 has a CVSS score of 7.3/10 (HIGH severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.

How do I fix CVE-2023-22947?

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.

Are you affected by CVE-2023-22947?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST