CVE-2023-22947
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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."
- CVSS 3.1
- 7.3 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 0.31% probability · 24th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-427
- Affected
- shibboleth/service provider
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.