{"answers":{"affected":"2 open source packages ship an affected version, including org.keycloak:keycloak-services. It affects 5 products.","exploited":"There is no known exploitation of CVE-2023-0264 in the wild and no public exploit code.","fix":"Upgrade org.keycloak:keycloak-services to 21.0.1 or later.","what":"CVE-2023-0264 is a medium-severity authentication bypass vulnerability in Redhat Keycloak, published on 4 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-0264 and fix it if it is affected.\n\nWhat it is: CVE-2023-0264 is a medium-severity authentication bypass vulnerability in Redhat Keycloak, published on 4 Aug 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-0264 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.keycloak:keycloak-services (Maven): affected all versions; fixed in 21.0.1\n- org.keycloak:keycloak-services (Maven): affected all versions; fixed in 21.0.1\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-2023-0264/ (Markdown: https://insights.sbomify.com/CVE-2023-0264/index.md)","id":"CVE-2023-0264","markdown":"https://insights.sbomify.com/CVE-2023-0264/index.md","name":"CVE-2023-0264","record":{"aliases":["GHSA-9g98-5mj6-f9mv"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["account_takeover","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Keycloak identity server","requires_auth":"low_privilege","summary":"An authenticated attacker can impersonate victims and generate session tokens by exploiting an OpenID Connect authentication flaw in Keycloak.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"keycloak","vendor":"redhat"},{"product":"openshift_container_platform","vendor":"redhat"},{"product":"openshift_container_platform_for_ibm_linuxone","vendor":"redhat"},{"product":"openshift_container_platform_ibm_z_systems","vendor":"redhat"},{"product":"single_sign-on","vendor":"redhat"}],"cvss":{"score":5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"A flaw was found in Keycloaks OpenID Connect user authentication, which may incorrectly authenticate requests. An authenticated attacker who could obtain information from a user request within the same realm could use that data to impersonate the victim and generate new session tokens. This issue could impact confidentiality, integrity, and availability.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":"2023-03-06","github_poc":2,"max_poc_stars":7,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-03-06T14:42:19Z","kind":"github_poc","ref":"https://github.com/twwd/CVE-2023-0264","stars":7,"title":"A small PoC for the Keycloak vulnerability CVE-2023-0264"},{"date":"2026-07-28T18:01:18Z","kind":"github_poc","ref":"https://github.com/ElianGonzi00/pocKeycloakCVE-2023-0264","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"Keycloak vulnerable to user impersonation via stolen UUID code","id":"CVE-2023-0264","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"redhat:keycloak","products":["redhat:keycloak","redhat:openshift_container_platform","redhat:single_sign-on"],"type":"auth_bypass","year":"2023"},"n_packages":2,"n_references":1,"next":{"headline":"Uvdesk remote code execution vulnerability","id":"CVE-2023-0265"},"packages":[{"ecosystem":"Maven","fixed":["21.0.1"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":null,"source":"GHSA-9g98-5mj6-f9mv"},{"ecosystem":"Maven","fixed":["21.0.1"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","source":"GHSA-9g98-5mj6-f9mv"}],"prev":{"headline":"WP Yelp Review Slider \u003c 7.1 - Subscriber+ SQLi","id":"CVE-2023-0263"},"products":["Keycloak"],"published":"2023-08-04","related":[{"cvss_score":10,"headline":"Keycloak vulnerable to cross-site scripting when validating URI-schemes on SAML and OIDC","id":"CVE-2022-4361","kev_date_added":null,"published":"2023-07-07"},{"cvss_score":9.8,"headline":"Keycloak vulnerable to privilege escalation on Token Exchange feature","id":"CVE-2022-1245","kev_date_added":null,"published":"2022-07-07"},{"cvss_score":9.6,"headline":"keycloak Self Stored Cross-site Scripting vulnerability","id":"CVE-2021-20195","kev_date_added":null,"published":"2021-05-28"},{"cvss_score":9.3,"headline":"Keycloak Authentication Error","id":"CVE-2019-14910","kev_date_added":null,"published":"2019-12-05"},{"cvss_score":9.3,"headline":"Keycloak Authentication Error","id":"CVE-2019-14909","kev_date_added":null,"published":"2019-12-04"},{"cvss_score":9.1,"headline":"Keycloak vulnerable to path traversal via double URL encoding","id":"CVE-2022-3782","kev_date_added":null,"published":"2023-01-11"},{"cvss_score":9.1,"headline":"keycloak vulnerable to unauthorized login via mail server setup","id":"CVE-2019-14837","kev_date_added":null,"published":"2020-01-07"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-02","vendors":["redhat.com"]},"summary":"An authenticated attacker can impersonate victims and generate session tokens by exploiting an OpenID Connect authentication flaw in Keycloak.","url":"https://insights.sbomify.com/CVE-2023-0264/"}