{"answers":{"affected":"4 open source packages ship an affected version, including org.opencastproject:opencast-kernel. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-5206 in the wild and no public exploit code.","fix":"Upgrade org.opencastproject:opencast-kernel to a fixed version for your release line: 7.6 or 8.1.","what":"CVE-2020-5206 is a high-severity authentication bypass vulnerability in opencast, published on 30 Jan 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-5206 and fix it if it is affected.\n\nWhat it is: CVE-2020-5206 is a high-severity authentication bypass vulnerability in opencast, published on 30 Jan 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-5206 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.opencastproject:opencast-kernel (Maven): affected all versions; fixed in 7.6\n- org.opencastproject:opencast-kernel (Maven): affected all versions; fixed in 7.6\n- org.opencastproject:opencast-kernel (Maven): affected from 8.0; fixed in 8.1\n- org.opencastproject:opencast-kernel (Maven): affected from 8.0; fixed in 8.1\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-2020-5206/ (Markdown: https://insights.sbomify.com/CVE-2020-5206/index.md)","id":"CVE-2020-5206","markdown":"https://insights.sbomify.com/CVE-2020-5206/index.md","name":"CVE-2020-5206","record":{"aliases":["GHSA-vmm6-w4cf-7f3x"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Opencast media platform","requires_auth":"low_privilege","summary":"Attackers can bypass authentication using fake remember-me cookies to access non-public content and assume administrator privileges in Opencast.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"opencast","vendor":"apereo"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"},{"id":"CWE-285","name":"Improper Authorization"}],"description":"In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Authentication Bypass For Endpoints With Anonymous Access in OpenCast","id":"CVE-2020-5206","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"auth_bypass","year":"2020"},"n_packages":4,"n_references":2,"next":{"headline":"Request smuggling is possible in Ktor when both chunked TE and content length specified","id":"CVE-2020-5207"},"packages":[{"ecosystem":"Maven","fixed":["7.6"],"introduced":["0"],"last_affected":[],"package":"org.opencastproject:opencast-kernel","purl":null,"source":"GHSA-vmm6-w4cf-7f3x"},{"ecosystem":"Maven","fixed":["7.6"],"introduced":["0"],"last_affected":[],"package":"org.opencastproject:opencast-kernel","purl":"pkg:maven/org.opencastproject/opencast-kernel","source":"GHSA-vmm6-w4cf-7f3x"},{"ecosystem":"Maven","fixed":["8.1"],"introduced":["8.0"],"last_affected":[],"package":"org.opencastproject:opencast-kernel","purl":null,"source":"GHSA-vmm6-w4cf-7f3x"},{"ecosystem":"Maven","fixed":["8.1"],"introduced":["8.0"],"last_affected":[],"package":"org.opencastproject:opencast-kernel","purl":"pkg:maven/org.opencastproject/opencast-kernel","source":"GHSA-vmm6-w4cf-7f3x"}],"prev":{"headline":"Session fixation attack in Pow (Hex package)","id":"CVE-2020-5205"},"products":["opencast"],"published":"2020-01-30","related":[{"cvss_score":9.9,"headline":"Files Accessible to External Parties in Opencast","id":"CVE-2021-43821","kev_date_added":null,"published":"2021-12-14"},{"cvss_score":8.1,"headline":"Opencast vulnerable to billion laughs attack (XML bomb)","id":"CVE-2021-32623","kev_date_added":null,"published":"2021-06-15"},{"cvss_score":7.7,"headline":"Opencast stores passwords using outdated MD5 hash algorithm","id":"CVE-2020-5229","kev_date_added":null,"published":"2020-01-30"},{"cvss_score":7.7,"headline":"Opencast uses unsafe identifiers","id":"CVE-2020-5230","kev_date_added":null,"published":"2020-01-30"},{"cvss_score":7.6,"headline":"Opencast allows unauthorized public access via OAI-PMH","id":"CVE-2020-5228","kev_date_added":null,"published":"2020-01-30"},{"cvss_score":7.5,"headline":"Opencast publishes global system account credentials","id":"CVE-2018-16153","kev_date_added":null,"published":"2023-12-12"}],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["opencast"]},"summary":"Attackers can bypass authentication using fake remember-me cookies to access non-public content and assume administrator privileges in Opencast.","url":"https://insights.sbomify.com/CVE-2020-5206/"}