{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-4612 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-4612 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-4612 is a critical authentication bypass vulnerability in Apereo Foundation CAS, published on 9 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-4612 and fix it if it is affected.\n\nWhat it is: CVE-2023-4612 is a critical authentication bypass vulnerability in Apereo Foundation CAS, published on 9 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-4612 in the wild and no public exploit code.\n\nAffected product: Apereo Foundation CAS. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-4612/ (Markdown: https://insights.sbomify.com/CVE-2023-4612/index.md)","id":"CVE-2023-4612","markdown":"https://insights.sbomify.com/CVE-2023-4612/index.md","name":"CVE-2023-4612","record":{"aliases":["GHSA-fxgj-cfm7-w8hw"],"analysis":{"component_type":"server_software","fix_type":"no_fix_stated","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Apereo CAS","requires_auth":"none","summary":"Attackers can bypass Multi-Factor Authentication in Apereo CAS due to improper handling of remote address information.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERT-PL","cpe":[{"product":"central_authentication_service","vendor":"apereo"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"},{"id":"CWE-302","name":"Authentication Bypass by Assumed-Immutable Data"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"MFA bypass in Apereo CAS","id":"CVE-2023-4612","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Upload Directory Path Traversal Allows Unauthenticated Arbitrary File Read Vulnerability","id":"CVE-2023-4613"},"packages":[],"prev":{"headline":"Use after free race between mbind() and vma-locked page fault","id":"CVE-2023-4611"},"products":["CAS"],"published":"2023-11-09","related":[{"cvss_score":9.1,"headline":"CAS \u003c= 1.0.0 - Unauthenticated SSRF","id":"CVE-2024-4399","kev_date_added":null,"published":"2024-05-23"},{"cvss_score":8.1,"headline":"Use of Insufficiently Random Values in Apereo CAS","id":"CVE-2019-10754","kev_date_added":null,"published":"2019-09-23"},{"cvss_score":7.5,"headline":"Improper Authentication in Apereo CAS","id":"CVE-2020-27178","kev_date_added":null,"published":"2020-10-16"},{"cvss_score":7.5,"headline":"Auth bypass in n/a","id":"CVE-2015-1169","kev_date_added":null,"published":"2015-02-10"},{"cvss_score":6.3,"headline":"Apereo CAS login session expiration","id":"CVE-2024-11208","kev_date_added":null,"published":"2024-11-14"},{"cvss_score":6.1,"headline":"Cross-site Scripting in Apereo CAS","id":"CVE-2021-42567","kev_date_added":null,"published":"2021-12-07"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-26","vendors":["Apereo Foundation"]},"summary":"Attackers can bypass Multi-Factor Authentication in Apereo CAS due to improper handling of remote address information.","url":"https://insights.sbomify.com/CVE-2023-4612/"}