by Kastro
Paper/Archive/CVE-2023-4612

CVE-2023-4612

Apereo Foundation CAS — MFA bypass in Apereo CAS

EPSS 1%CVSS 9.8
critical.is priorityof 100
43
CVSS 9.8 (ADP, NVD agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 66.1.661 × 2013.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Improper Authentication vulnerability in Apereo CAS in jakarta.servlet.http.HttpServletRequest.getRemoteAddr method allows Multi-Factor Authentication bypass.This issue affects CAS: through 7.0.0-RC7. It is unknown whether in new versions the issue will be fixed. For the date of publication there is no patch, and the vendor does not treat it as a vulnerability.

Affected

ProductAffectedFixed inSource
CAS≤ 7.0.0-RC7–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

writeupcert.pl/posts/2023/11/CVE-2023-4612writeupcert.pl/en/posts/2023/11/CVE-2023-4612